Jens-Petter Andreassen
Foto:
Aleksander Stokke Båtnes
About
I am the Dean at the Faculty of Natural Sciences (NV) since 1 August, 2025. I was previously the Head of Department at the Department of Chemical Engineering (IKP).
I have worked as a professor at IKP specializing in industrial crystallization. In the crystallization group, we study precipitation and growth of solid particulate materials related to industrial production, for instance pharmaceutical products or mineral precipitates. The size and shape of the crystals are important for separation and quality of the final product and we focus our studies on the fundamental size enlargement process. We cooperate with industrial companies, but also perform fundamental studies of mineralization in biological systems, as for instance how bone formation happens in the human body.
Publications
2025
-
Joshi, Bhaskar;
Ucar, Seniz;
Knuutila, Hanna Katariina;
Svendsen, Hallvard Fjøsne;
Andreassen, Jens-Petter;
Bandyopadhyay, Sulalit.
(2025)
Flue gas induced lithium carbonate crystallization from industrial black mass.
Journal of Hazardous Materials
Academic article
-
Joshi, Bhaskar;
Ucar, Seniz;
Knuutila, Hanna Katariina;
Svendsen, Hallvard Fjøsne;
Andreassen, Jens-Petter;
Bandyopadhyay, Sulalit.
(2025)
Optimizing lithium carbonate recovery through gas-liquid reactive crystallization of lithium hydroxide and carbon dioxide.
Sustainable Materials and Technologies
Academic article
2024
-
Ucar, Seniz;
Nielsen, Anne R.;
Mojsoska, Biljana;
Dideriksen, Knud;
Andreassen, Jens-Petter;
Zuckermann, Ronald N.;
Sand, Karina K..
(2024)
Exploiting Saturation Regimes and Surface Effects to Tune Composite Design: Single Platelet Nanocomposites of Peptoid Nanosheets and CaCO3.
ACS Applied Materials & Interfaces
Academic article
2023
-
Ali, Zeeshan;
Andreassen, Jens-Petter;
Bandyopadhyay, Sulalit.
(2023)
Fine-Tuning of Particle Size and Morphology of Silica Coated Iron Oxide Nanoparticles.
Industrial & Engineering Chemistry Research
Academic article
2021
-
Jenssen, Ina Beate;
Ucar, Seniz;
Dotterud, Ole Morten;
Bøckman, Oluf;
Andreassen, Jens-Petter.
(2021)
Investigating the effects of process parameters on the filtration performance of ferric hydroxide in a continuous MSMPR reactor.
Hydrometallurgy
Academic article
-
Jenssen, Ina Beate;
Bøckman, Oluf;
Andreassen, Jens-Petter;
Ucar, Seniz.
(2021)
The Effect of Reaction Conditions and Presence of Magnesium on the Crystallization of Nickel Sulfate.
Crystals
Academic article
2020
-
Antony, Jibin;
Raghunathan, Karthik;
Munir, Sarmad;
Andreassen, Jens-Petter;
Bandyopadhyay, Sulalit.
(2020)
Tuning and tracking the growth of gold nanoparticles synthesized using binary surfactant mixtures.
Nanoscale Advances
Academic article
-
Shaddel, Sina;
Grini, Tonje;
Ucar, Seniz;
Azrague, Kamal;
Andreassen, Jens-Petter;
Østerhus, Stein Wold.
(2020)
Struvite crystallization by using raw seawater: Improving economics and environmental footprint while maintaining phosphorus recovery and product quality.
Water Research
Academic article
-
Raghunathan, Karthik;
Antony, Jibin;
Munir, Sarmad;
Andreassen, Jens-Petter;
Bandyopadhyay, Sulalit.
(2020)
Tuning and tracking the growth of gold nanoparticles synthesized using binary surfactant mixtures.
Nanoscale Advances
Academic article
-
Shaddel, Sina;
Grini, Tonje;
Andreassen, Jens-Petter;
Østerhus, Stein Wold;
Ucar, Seniz.
(2020)
Crystallization kinetics and growth of struvite crystals by seawater versus magnesium chloride as magnesium source: Towards enhancing sustainability and economics of struvite crystallization.
Chemosphere
Academic article
-
Jenssen, Ina Beate;
Ucar, Seniz;
Bøckman, Oluf;
Dotterud, Ole Morten;
Andreassen, Jens-Petter.
(2020)
Impurity Uptake During Cooling Crystallization of Nickel Sulfate.
Academic chapter
2019
-
Shaddel, Sina;
Ucar, Seniz;
Andreassen, Jens-Petter;
Østerhus, Stein Wold.
(2019)
Engineering of struvite crystals by regulating supersaturation – Correlation with phosphorus recovery, crystal morphology and process efficiency.
Journal of Environmental Chemical Engineering
Academic article
-
Shaddel, Sina;
Ucar, Seniz;
Andreassen, Jens-Petter;
Østerhus, Stein Wold.
(2019)
Enhancing efficiency and economy of phosphorus recovery process by customizing the product based on sidestream characteristics.
Water Science and Technology
Academic article
-
Ucar, Seniz;
Bjørnøy, Sindre Hove;
Bassett, David;
Strand, Berit Løkensgard;
Sikorski, Pawel;
Andreassen, Jens-Petter.
(2019)
Formation of Hydroxyapatite via Transformation of Amorphous
Calcium Phosphate in the Presence of Alginate Additives.
Crystal Growth & Design
Academic article
-
Wang, Lijuan;
Andreassen, Jens-Petter;
Ucar, Seniz.
(2019)
Precipitation of silver particles with controlled morphologies from aqueous solutions.
CrysteEngComm
Academic article
2018
-
Jenssen, Ina Beate;
Hines, Mona Aufles;
Dotterud, Ole Morten;
Bøckman, Oluf;
Andreassen, Jens-Petter.
(2018)
Filtration Properties of Ferric Hydroxide Precipitate in Nickel Production.
Academic chapter
-
Bandyopadhyay, Sulalit;
Mcdonagh, Birgitte Hjelmeland;
Singh, Gurvinder;
Raghunathan, Karthik;
Sandvig, Axel;
Sandvig, Ioanna;
Andreassen, Jens-Petter;
Glomm, Wilhelm.
(2018)
Growing gold nanostructures for shape-selective cellular uptake.
Nanoscale Research Letters
Academic article
2017
-
Bjørnøy, Sindre Hove;
Bassett, David;
Ucar, Seniz;
Andreassen, Jens-Petter;
Sikorski, Pawel.
(2017)
Letter to the Editor re "Characterization of alginate-brushite in-situ hydrogel composites".
Materials Science and Engineering C: Materials for Biological Applications
Commentary
2016
-
Bjørnøy, Sindre Hove;
Bassett, David;
Ucar, Seniz;
Andreassen, Jens-Petter;
Sikorski, Pawel.
(2016)
Controlled mineralisation and recrystallisation of brushite within alginate hydrogels.
Biomedical Materials
Academic article
-
Ucar, Seniz;
Bjørnøy, Sindre Hove;
Bassett, David;
Strand, Berit Løkensgard;
Sikorski, Pawel;
Andreassen, Jens-Petter.
(2016)
Transformation of brushite to hydroxyapatite and effects of alginate additives.
Journal of Crystal Growth
Academic article
-
Broby, Margrethe;
Andreassen, Jens-Petter;
Ma, Xiaoguang;
Neteland, Marte.
(2016)
Scaling of calcium carbonate on heated surfaces - Crystallization or particulate fouling?.
Academic chapter
-
Bjørnøy, Sindre Hove;
Mandaric, Stefan;
Bassett, David;
Åslund, Andreas;
Ucar, Seniz;
Andreassen, Jens-Petter;
Strand, Berit Løkensgard;
Sikorski, Pawel.
(2016)
Gelling kinetics and in situ mineralization of alginate hydrogels: A correlative spatiotemporal characterization toolbox.
Acta Biomaterialia
Academic article
-
Bjørnøy, Sindre Hove;
Bassett, David;
Ucar, Seniz;
Strand, Berit Løkensgard;
Andreassen, Jens-Petter;
Sikorski, Pawel.
(2016)
A correlative spatiotemporal microscale study of calcium phosphate formation and transformation within an alginate hydrogel matrix.
Acta Biomaterialia
Academic article
2015
-
Ucar, Seniz;
Bjørnøy, Sindre Hove;
Bassett, David;
Strand, Berit Løkensgard;
Sikorski, Pawel;
Andreassen, Jens-Petter.
(2015)
Nucleation and Growth of Brushite in the Presence of Alginate.
Crystal Growth & Design
Academic article
-
Flaten, Ellen Marie;
Seiersten, Marion;
Beck, Ralf;
Ma, Xiaoguang;
Aanonsen, Charlotte;
Andreassen, Jens-Petter.
(2015)
Impact of monoethylene glycol and Fe2+ on crystal growth of CaCO3.
International Corrosion Conference Series
Academic article
2014
-
Nergaard, Margrethe;
Beck, Ralf;
Seiersten, Marion;
Andreassen, Jens-Petter.
(2014)
Scaling of Calcium Carbonate on the Exterior of Heated Surfaces in a Flow-Through Setup.
Chemical Engineering & Technology
Academic article
-
Wang, Lijuan;
Andreassen, Jens-Petter.
(2014)
Spherulitic Growth of Gold Particles Precipitated from Aqueous Solution.
Chemical Engineering & Technology
Academic article
-
Singh, Gurvinder;
Helvoort, Antonius Van;
Bandyopadhyay, Sulalit;
Volden, Sondre;
Andreassen, Jens-Petter;
Glomm, Wilhelm.
(2014)
Synthesis of Au nanowires with controlled morphological and structural characteristics.
Applied Surface Science
Academic article
2013
-
Beck, Ralf;
Broby, Margrethe;
Andreassen, Jens-Petter.
(2013)
Crystal growth of calcite at conditions of gas processing in solvent mixtures of monoethylene glycol and water.
Transactions of Tianjin University
Academic article
-
Salmimies, Riina;
Kallas, Juha;
Ekberg, Bjarne;
Gorres, G;
Andreassen, Jens-Petter;
Beck, Ralf;
Häkkinen, Antti.
(2013)
The scaling and regeneration of the ceramic filter medium used in the dewatering of a magnetite concentrate.
International Journal of Mineral Processing
Academic article
-
Beck, Ralf;
Seiersten, Marion;
Andreassen, Jens-Petter.
(2013)
The constant composition method for crystallization of calcium carbonate at constant supersaturation.
Journal of Crystal Growth
Academic article
2012
-
Xie, Minli;
Magnus Østgård, Olderøy;
Zhang, Zhibing;
Andreassen, Jens-Petter;
Strand, Berit Løkensgard;
Sikorski, Pawel.
(2012)
Biocomposites prepared by alkaline phosphatase mediated mineralization of alginate microbeads.
RSC Advances
Academic article
-
Beck, Ralf;
Andreassen, Jens-Petter.
(2012)
Influence of Crystallization Conditions on Crystal Morphology and Size of CaCO3 and Their Effect on Pressure Filtration.
AIChE Journal
Academic article
-
Kim, Inna;
Ma, Xiaoguang;
Andreassen, Jens-Petter.
(2012)
Study of the solid-liquid solubility in the piperazine-H2O-CO2 system using FBRM and PVM.
Energy Procedia
Academic article
-
Nergaard, Margrethe;
Beck, Ralf;
Andreassen, Jens-Petter.
(2012)
Scaling of Calcium Carbonate on a Heated Surface in a Flow-Through System.
Academic chapter
-
Olderøy, Magnus Østgård;
Xie, Minli;
Andreassen, Jens-Petter;
Strand, Berit Løkensgard;
Zhang, Zhibing;
Sikorski, Pawel.
(2012)
Viscoelastic properties of mineralized alginate hydrogel beads.
Journal of Materials Science: Materials in Medicine
Academic article
-
Beck, Ralf;
Andreassen, Jens-Petter.
(2012)
The influence of crystallization conditions on the onset of dendritic growth of calcium carbonate.
Crystal Research & Technology
Academic article
-
Andreassen, Jens-Petter;
Beck, Ralf;
Nergaard, Margrethe.
(2012)
Biomimetic type morphologies of calcium carbonate grown in absence of additives.
Faraday discussions
Academic article
-
Olderøy, Magnus Østgård;
Westhrin, Marita;
Andreassen, Jens-Petter;
Zhang, Zhibing;
Strand, Berit Løkensgard;
Standal, Therese;
Sikorski, Pawel.
(2012)
Properties and cell compatibility of mineralized alginate hydrogel beads.
European Cells and Materials
Conference abstract
-
Ma, Xiaoguang;
Kim, Inna;
Beck, Ralf;
Knuutila, Hanna;
Andreassen, Jens-Petter.
(2012)
Precipitaton of Piperazine in Aqueous Piperazine Solutions with and without CO2 Loadings.
Industrial & Engineering Chemistry Research
Academic article
-
Olderøy, Magnus Østgård;
Westhrin, Marita;
Ehnert, Sabrina;
Xie, Minli;
Andreassen, Jens-Petter;
Strand, Berit Løkensgard;
Standal, Therese;
Nussler, Andreas K;
Sikorski, Pawel.
(2012)
Investigation of mineralized alginate gels as a scaffold material for stem cell based bone tissue engineering.
Journal of Tissue Engineering and Regenerative Medicine
Conference abstract
2011
-
Olderøy, Magnus Østgård;
Xie, Minli;
Strand, Berit Løkensgard;
Draget, Kurt Ingar;
Sikorski, Pawel;
Andreassen, Jens-Petter.
(2011)
Polymorph Switching in the Calcium Carbonate System by Well-Defined Alginate Oligomers.
Crystal Growth & Design
Academic article
-
Beck, Ralf;
Flaten, Ellen Marie;
Andreassen, Jens-Petter.
(2011)
Influence of Crystallization Conditions on the Growth of Polycrystalline Particles.
Chemical Engineering & Technology
Academic article
2010
-
Beck, Ralf;
Nysæter, Trude Odberg;
Enstad, Gisle Gotfred;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2010)
Influence of Crystal Properties on Powder Flow Behavior of an Aromatic Amine and L-Glutamic Acid.
Particulate Science and Technology
Academic article
-
Flaten, Ellen Marie;
Seiersten, Marion;
Andreassen, Jens-Petter.
(2010)
Growth of the calcium carbonate polymorph vaterite in mixtures of water and ethylene glycol at conditions of gas processing.
Journal of Crystal Growth
Academic article
-
Xie, Minli;
Olderøy, Magnus Østgård;
Andreassen, Jens-Petter;
Selbach, Sverre Magnus;
Strand, Berit Løkensgard;
Sikorski, Pawel.
(2010)
Alginate-controlled formation of nanoscale calcium carbonate and hydroxyapatite mineral phase within hydrogel networks.
Acta Biomaterialia
Academic article
-
Beck, Ralf;
Svinning, Ketil;
Häkkinen, Antti;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2010)
Analysis of Filtration Characteristics for Compressible Polycrystalline Particles by Partial Least Squares Regression.
Separation science and technology (Print)
Academic article
-
Beck, Ralf;
Heskestad, Rita;
Malthe-Sørenssen, Didrik;
Häkkinen, Antti;
Louhi-Kultanen, M.;
Andreassen, Jens-Petter.
(2010)
Ageing of spherulites of an industrial relevant aromatic amine derivative.
Crystal Research & Technology
Academic article
-
Beck, Ralf;
Andreassen, Jens-Petter.
(2010)
The influence of crystallization conditions on the growth of polycrystalline particles of L-glutamic acid, an aromatic amine derivative and calcium carbonate.
Academic chapter
-
Flaten, Ellen Marie;
Seiersten, Marion;
Andreassen, Jens-Petter.
(2010)
Induction time studies of calcium carbonate in ethylene glycol and water.
Chemical engineering research & design
Academic article
-
Beck, Ralf;
Andreassen, Jens-Petter.
(2010)
Spherulitic Growth of Calcium Carbonate.
Crystal Growth & Design
Academic article
-
Beck, Ralf;
Andreassen, Jens-Petter.
(2010)
The onset of spherulitic growth in crystallization of calcium carbonate.
Journal of Crystal Growth
Academic article
-
Andreassen, Jens-Petter;
Flaten, Ellen Marie;
Beck, Ralf;
Lewis, Alison Emslie.
(2010)
Investigations of spherulitic growth in industrial crystallization.
Chemical engineering research & design
Academic article
-
Beck, Ralf;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2010)
Formation and ageing of L-glutamic acid spherulites.
Crystal Research & Technology
Academic article
2009
-
Beck, Ralf;
Häkkinen, Antti;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2009)
The effect of crystallization conditions, crystal morphology and size on pressure filtration of L-glutamic acid and an aromatic amine.
Separation and Purification Technology
Academic article
-
Flaten, Ellen Marie;
Seiersten, M;
Andreassen, Jens-Petter.
(2009)
Polymorphism and morphology of calcium carbonate precipitated in mixed solvents of ethylene glycol and water.
Journal of Crystal Growth
Academic article
-
Olderøy, Magnus Østgård;
Xie, Minli;
Andreassen, Jens-Petter;
Strand, Berit Løkensgard;
Sikorski, Pawel.
(2009)
Front cover of the book "Food Stabilisers, Thickeners and Gelling Agents".
Visual arts
-
Olderøy, Magnus Østgård;
Xie, Minli;
Strand, Berit Løkensgard;
Flaten, Ellen Marie;
Sikorski, Pawel;
Andreassen, Jens-Petter.
(2009)
Growth and nucleation of calcium carbonate vaterite crystals in presence of alginate.
Crystal Growth & Design
Academic article
-
Beck, Ralf;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2009)
Polycrystalline growth in precipitation of an aromatic amine derivative and l-glutamic acid.
Journal of Crystal Growth
Academic article
2008
-
Beck, Ralf;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2008)
Polycrystalline Growth in Precipitation of an Aromatic Amine Derivative and L-Glutamic Acid.
Journal of Crystal Growth
Academic article
-
Beck, Ralf;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2008)
The Unstable Nature of β-L-Glutamic Acid Spherulites.
Academic chapter
-
Flaten, Ellen Marie;
Monica, Fostenæs Siv;
Andreassen, Jens-Petter.
(2008)
The effect of HEDP on calcium carbonate precipitation.
Academic chapter
2005
-
Andreassen, Jens-Petter.
(2005)
Formation mechanism and morphology in precipitation of vaterite - nano aggregation or crystal growth?.
Journal of Crystal Growth
Academic article
2004
-
Andreassen, Jens-Petter;
Hounslow, Mike J..
(2004)
Growth and Aggregation of Vaterite in Seeded-Batch Experiments.
AIChE Journal
Academic article
2001
-
Andreassen, Jens-Petter.
(2001)
Growth and Aggregation Phenomena in Precipitation of Calcium Carbonate.
Norges teknisk-naturvitenskapelige universitet
Doctoral thesis
Journal publications
-
Beck, Ralf;
Häkkinen, Antti;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2009)
The effect of crystallization conditions, crystal morphology and size on pressure filtration of L-glutamic acid and an aromatic amine.
Separation and Purification Technology
Academic article
-
Nergaard, Margrethe;
Beck, Ralf;
Seiersten, Marion;
Andreassen, Jens-Petter.
(2014)
Scaling of Calcium Carbonate on the Exterior of Heated Surfaces in a Flow-Through Setup.
Chemical Engineering & Technology
Academic article
-
Jenssen, Ina Beate;
Ucar, Seniz;
Dotterud, Ole Morten;
Bøckman, Oluf;
Andreassen, Jens-Petter.
(2021)
Investigating the effects of process parameters on the filtration performance of ferric hydroxide in a continuous MSMPR reactor.
Hydrometallurgy
Academic article
-
Joshi, Bhaskar;
Ucar, Seniz;
Knuutila, Hanna Katariina;
Svendsen, Hallvard Fjøsne;
Andreassen, Jens-Petter;
Bandyopadhyay, Sulalit.
(2025)
Flue gas induced lithium carbonate crystallization from industrial black mass.
Journal of Hazardous Materials
Academic article
-
Antony, Jibin;
Raghunathan, Karthik;
Munir, Sarmad;
Andreassen, Jens-Petter;
Bandyopadhyay, Sulalit.
(2020)
Tuning and tracking the growth of gold nanoparticles synthesized using binary surfactant mixtures.
Nanoscale Advances
Academic article
-
Xie, Minli;
Magnus Østgård, Olderøy;
Zhang, Zhibing;
Andreassen, Jens-Petter;
Strand, Berit Løkensgard;
Sikorski, Pawel.
(2012)
Biocomposites prepared by alkaline phosphatase mediated mineralization of alginate microbeads.
RSC Advances
Academic article
-
Olderøy, Magnus Østgård;
Xie, Minli;
Strand, Berit Løkensgard;
Draget, Kurt Ingar;
Sikorski, Pawel;
Andreassen, Jens-Petter.
(2011)
Polymorph Switching in the Calcium Carbonate System by Well-Defined Alginate Oligomers.
Crystal Growth & Design
Academic article
-
Flaten, Ellen Marie;
Seiersten, M;
Andreassen, Jens-Petter.
(2009)
Polymorphism and morphology of calcium carbonate precipitated in mixed solvents of ethylene glycol and water.
Journal of Crystal Growth
Academic article
-
Beck, Ralf;
Andreassen, Jens-Petter.
(2012)
Influence of Crystallization Conditions on Crystal Morphology and Size of CaCO3 and Their Effect on Pressure Filtration.
AIChE Journal
Academic article
-
Wang, Lijuan;
Andreassen, Jens-Petter.
(2014)
Spherulitic Growth of Gold Particles Precipitated from Aqueous Solution.
Chemical Engineering & Technology
Academic article
-
Singh, Gurvinder;
Helvoort, Antonius Van;
Bandyopadhyay, Sulalit;
Volden, Sondre;
Andreassen, Jens-Petter;
Glomm, Wilhelm.
(2014)
Synthesis of Au nanowires with controlled morphological and structural characteristics.
Applied Surface Science
Academic article
-
Beck, Ralf;
Broby, Margrethe;
Andreassen, Jens-Petter.
(2013)
Crystal growth of calcite at conditions of gas processing in solvent mixtures of monoethylene glycol and water.
Transactions of Tianjin University
Academic article
-
Kim, Inna;
Ma, Xiaoguang;
Andreassen, Jens-Petter.
(2012)
Study of the solid-liquid solubility in the piperazine-H2O-CO2 system using FBRM and PVM.
Energy Procedia
Academic article
-
Beck, Ralf;
Nysæter, Trude Odberg;
Enstad, Gisle Gotfred;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2010)
Influence of Crystal Properties on Powder Flow Behavior of an Aromatic Amine and L-Glutamic Acid.
Particulate Science and Technology
Academic article
-
Beck, Ralf;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2008)
Polycrystalline Growth in Precipitation of an Aromatic Amine Derivative and L-Glutamic Acid.
Journal of Crystal Growth
Academic article
-
Olderøy, Magnus Østgård;
Xie, Minli;
Strand, Berit Løkensgard;
Flaten, Ellen Marie;
Sikorski, Pawel;
Andreassen, Jens-Petter.
(2009)
Growth and nucleation of calcium carbonate vaterite crystals in presence of alginate.
Crystal Growth & Design
Academic article
-
Andreassen, Jens-Petter;
Hounslow, Mike J..
(2004)
Growth and Aggregation of Vaterite in Seeded-Batch Experiments.
AIChE Journal
Academic article
-
Ucar, Seniz;
Nielsen, Anne R.;
Mojsoska, Biljana;
Dideriksen, Knud;
Andreassen, Jens-Petter;
Zuckermann, Ronald N.;
Sand, Karina K..
(2024)
Exploiting Saturation Regimes and Surface Effects to Tune Composite Design: Single Platelet Nanocomposites of Peptoid Nanosheets and CaCO3.
ACS Applied Materials & Interfaces
Academic article
-
Salmimies, Riina;
Kallas, Juha;
Ekberg, Bjarne;
Gorres, G;
Andreassen, Jens-Petter;
Beck, Ralf;
Häkkinen, Antti.
(2013)
The scaling and regeneration of the ceramic filter medium used in the dewatering of a magnetite concentrate.
International Journal of Mineral Processing
Academic article
-
Flaten, Ellen Marie;
Seiersten, Marion;
Andreassen, Jens-Petter.
(2010)
Growth of the calcium carbonate polymorph vaterite in mixtures of water and ethylene glycol at conditions of gas processing.
Journal of Crystal Growth
Academic article
-
Bjørnøy, Sindre Hove;
Bassett, David;
Ucar, Seniz;
Andreassen, Jens-Petter;
Sikorski, Pawel.
(2016)
Controlled mineralisation and recrystallisation of brushite within alginate hydrogels.
Biomedical Materials
Academic article
-
Shaddel, Sina;
Ucar, Seniz;
Andreassen, Jens-Petter;
Østerhus, Stein Wold.
(2019)
Engineering of struvite crystals by regulating supersaturation – Correlation with phosphorus recovery, crystal morphology and process efficiency.
Journal of Environmental Chemical Engineering
Academic article
-
Xie, Minli;
Olderøy, Magnus Østgård;
Andreassen, Jens-Petter;
Selbach, Sverre Magnus;
Strand, Berit Løkensgard;
Sikorski, Pawel.
(2010)
Alginate-controlled formation of nanoscale calcium carbonate and hydroxyapatite mineral phase within hydrogel networks.
Acta Biomaterialia
Academic article
-
Beck, Ralf;
Flaten, Ellen Marie;
Andreassen, Jens-Petter.
(2011)
Influence of Crystallization Conditions on the Growth of Polycrystalline Particles.
Chemical Engineering & Technology
Academic article
-
Andreassen, Jens-Petter.
(2005)
Formation mechanism and morphology in precipitation of vaterite - nano aggregation or crystal growth?.
Journal of Crystal Growth
Academic article
-
Beck, Ralf;
Svinning, Ketil;
Häkkinen, Antti;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2010)
Analysis of Filtration Characteristics for Compressible Polycrystalline Particles by Partial Least Squares Regression.
Separation science and technology (Print)
Academic article
-
Beck, Ralf;
Seiersten, Marion;
Andreassen, Jens-Petter.
(2013)
The constant composition method for crystallization of calcium carbonate at constant supersaturation.
Journal of Crystal Growth
Academic article
-
Ucar, Seniz;
Bjørnøy, Sindre Hove;
Bassett, David;
Strand, Berit Løkensgard;
Sikorski, Pawel;
Andreassen, Jens-Petter.
(2015)
Nucleation and Growth of Brushite in the Presence of Alginate.
Crystal Growth & Design
Academic article
-
Flaten, Ellen Marie;
Seiersten, Marion;
Beck, Ralf;
Ma, Xiaoguang;
Aanonsen, Charlotte;
Andreassen, Jens-Petter.
(2015)
Impact of monoethylene glycol and Fe2+ on crystal growth of CaCO3.
International Corrosion Conference Series
Academic article
-
Olderøy, Magnus Østgård;
Xie, Minli;
Andreassen, Jens-Petter;
Strand, Berit Løkensgard;
Zhang, Zhibing;
Sikorski, Pawel.
(2012)
Viscoelastic properties of mineralized alginate hydrogel beads.
Journal of Materials Science: Materials in Medicine
Academic article
-
Shaddel, Sina;
Ucar, Seniz;
Andreassen, Jens-Petter;
Østerhus, Stein Wold.
(2019)
Enhancing efficiency and economy of phosphorus recovery process by customizing the product based on sidestream characteristics.
Water Science and Technology
Academic article
-
Beck, Ralf;
Andreassen, Jens-Petter.
(2012)
The influence of crystallization conditions on the onset of dendritic growth of calcium carbonate.
Crystal Research & Technology
Academic article
-
Beck, Ralf;
Heskestad, Rita;
Malthe-Sørenssen, Didrik;
Häkkinen, Antti;
Louhi-Kultanen, M.;
Andreassen, Jens-Petter.
(2010)
Ageing of spherulites of an industrial relevant aromatic amine derivative.
Crystal Research & Technology
Academic article
-
Beck, Ralf;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2009)
Polycrystalline growth in precipitation of an aromatic amine derivative and l-glutamic acid.
Journal of Crystal Growth
Academic article
-
Shaddel, Sina;
Grini, Tonje;
Ucar, Seniz;
Azrague, Kamal;
Andreassen, Jens-Petter;
Østerhus, Stein Wold.
(2020)
Struvite crystallization by using raw seawater: Improving economics and environmental footprint while maintaining phosphorus recovery and product quality.
Water Research
Academic article
-
Raghunathan, Karthik;
Antony, Jibin;
Munir, Sarmad;
Andreassen, Jens-Petter;
Bandyopadhyay, Sulalit.
(2020)
Tuning and tracking the growth of gold nanoparticles synthesized using binary surfactant mixtures.
Nanoscale Advances
Academic article
-
Andreassen, Jens-Petter;
Beck, Ralf;
Nergaard, Margrethe.
(2012)
Biomimetic type morphologies of calcium carbonate grown in absence of additives.
Faraday discussions
Academic article
-
Olderøy, Magnus Østgård;
Westhrin, Marita;
Andreassen, Jens-Petter;
Zhang, Zhibing;
Strand, Berit Løkensgard;
Standal, Therese;
Sikorski, Pawel.
(2012)
Properties and cell compatibility of mineralized alginate hydrogel beads.
European Cells and Materials
Conference abstract
-
Joshi, Bhaskar;
Ucar, Seniz;
Knuutila, Hanna Katariina;
Svendsen, Hallvard Fjøsne;
Andreassen, Jens-Petter;
Bandyopadhyay, Sulalit.
(2025)
Optimizing lithium carbonate recovery through gas-liquid reactive crystallization of lithium hydroxide and carbon dioxide.
Sustainable Materials and Technologies
Academic article
-
Ma, Xiaoguang;
Kim, Inna;
Beck, Ralf;
Knuutila, Hanna;
Andreassen, Jens-Petter.
(2012)
Precipitaton of Piperazine in Aqueous Piperazine Solutions with and without CO2 Loadings.
Industrial & Engineering Chemistry Research
Academic article
-
Ucar, Seniz;
Bjørnøy, Sindre Hove;
Bassett, David;
Strand, Berit Løkensgard;
Sikorski, Pawel;
Andreassen, Jens-Petter.
(2019)
Formation of Hydroxyapatite via Transformation of Amorphous
Calcium Phosphate in the Presence of Alginate Additives.
Crystal Growth & Design
Academic article
-
Ali, Zeeshan;
Andreassen, Jens-Petter;
Bandyopadhyay, Sulalit.
(2023)
Fine-Tuning of Particle Size and Morphology of Silica Coated Iron Oxide Nanoparticles.
Industrial & Engineering Chemistry Research
Academic article
-
Olderøy, Magnus Østgård;
Westhrin, Marita;
Ehnert, Sabrina;
Xie, Minli;
Andreassen, Jens-Petter;
Strand, Berit Løkensgard;
Standal, Therese;
Nussler, Andreas K;
Sikorski, Pawel.
(2012)
Investigation of mineralized alginate gels as a scaffold material for stem cell based bone tissue engineering.
Journal of Tissue Engineering and Regenerative Medicine
Conference abstract
-
Shaddel, Sina;
Grini, Tonje;
Andreassen, Jens-Petter;
Østerhus, Stein Wold;
Ucar, Seniz.
(2020)
Crystallization kinetics and growth of struvite crystals by seawater versus magnesium chloride as magnesium source: Towards enhancing sustainability and economics of struvite crystallization.
Chemosphere
Academic article
-
Flaten, Ellen Marie;
Seiersten, Marion;
Andreassen, Jens-Petter.
(2010)
Induction time studies of calcium carbonate in ethylene glycol and water.
Chemical engineering research & design
Academic article
-
Ucar, Seniz;
Bjørnøy, Sindre Hove;
Bassett, David;
Strand, Berit Løkensgard;
Sikorski, Pawel;
Andreassen, Jens-Petter.
(2016)
Transformation of brushite to hydroxyapatite and effects of alginate additives.
Journal of Crystal Growth
Academic article
-
Jenssen, Ina Beate;
Bøckman, Oluf;
Andreassen, Jens-Petter;
Ucar, Seniz.
(2021)
The Effect of Reaction Conditions and Presence of Magnesium on the Crystallization of Nickel Sulfate.
Crystals
Academic article
-
Bandyopadhyay, Sulalit;
Mcdonagh, Birgitte Hjelmeland;
Singh, Gurvinder;
Raghunathan, Karthik;
Sandvig, Axel;
Sandvig, Ioanna;
Andreassen, Jens-Petter;
Glomm, Wilhelm.
(2018)
Growing gold nanostructures for shape-selective cellular uptake.
Nanoscale Research Letters
Academic article
-
Wang, Lijuan;
Andreassen, Jens-Petter;
Ucar, Seniz.
(2019)
Precipitation of silver particles with controlled morphologies from aqueous solutions.
CrysteEngComm
Academic article
-
Beck, Ralf;
Andreassen, Jens-Petter.
(2010)
Spherulitic Growth of Calcium Carbonate.
Crystal Growth & Design
Academic article
-
Beck, Ralf;
Andreassen, Jens-Petter.
(2010)
The onset of spherulitic growth in crystallization of calcium carbonate.
Journal of Crystal Growth
Academic article
-
Andreassen, Jens-Petter;
Flaten, Ellen Marie;
Beck, Ralf;
Lewis, Alison Emslie.
(2010)
Investigations of spherulitic growth in industrial crystallization.
Chemical engineering research & design
Academic article
-
Beck, Ralf;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2010)
Formation and ageing of L-glutamic acid spherulites.
Crystal Research & Technology
Academic article
-
Bjørnøy, Sindre Hove;
Mandaric, Stefan;
Bassett, David;
Åslund, Andreas;
Ucar, Seniz;
Andreassen, Jens-Petter;
Strand, Berit Løkensgard;
Sikorski, Pawel.
(2016)
Gelling kinetics and in situ mineralization of alginate hydrogels: A correlative spatiotemporal characterization toolbox.
Acta Biomaterialia
Academic article
-
Bjørnøy, Sindre Hove;
Bassett, David;
Ucar, Seniz;
Strand, Berit Løkensgard;
Andreassen, Jens-Petter;
Sikorski, Pawel.
(2016)
A correlative spatiotemporal microscale study of calcium phosphate formation and transformation within an alginate hydrogel matrix.
Acta Biomaterialia
Academic article
-
Bjørnøy, Sindre Hove;
Bassett, David;
Ucar, Seniz;
Andreassen, Jens-Petter;
Sikorski, Pawel.
(2017)
Letter to the Editor re "Characterization of alginate-brushite in-situ hydrogel composites".
Materials Science and Engineering C: Materials for Biological Applications
Commentary
Artistic productions
-
Olderøy, Magnus Østgård;
Xie, Minli;
Andreassen, Jens-Petter;
Strand, Berit Løkensgard;
Sikorski, Pawel.
(2009)
Front cover of the book "Food Stabilisers, Thickeners and Gelling Agents".
Visual arts
Part of book/report
-
Nergaard, Margrethe;
Beck, Ralf;
Andreassen, Jens-Petter.
(2012)
Scaling of Calcium Carbonate on a Heated Surface in a Flow-Through System.
Academic chapter
-
Jenssen, Ina Beate;
Hines, Mona Aufles;
Dotterud, Ole Morten;
Bøckman, Oluf;
Andreassen, Jens-Petter.
(2018)
Filtration Properties of Ferric Hydroxide Precipitate in Nickel Production.
Academic chapter
-
Beck, Ralf;
Andreassen, Jens-Petter.
(2010)
The influence of crystallization conditions on the growth of polycrystalline particles of L-glutamic acid, an aromatic amine derivative and calcium carbonate.
Academic chapter
-
Beck, Ralf;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2008)
The Unstable Nature of β-L-Glutamic Acid Spherulites.
Academic chapter
-
Flaten, Ellen Marie;
Monica, Fostenæs Siv;
Andreassen, Jens-Petter.
(2008)
The effect of HEDP on calcium carbonate precipitation.
Academic chapter
-
Jenssen, Ina Beate;
Ucar, Seniz;
Bøckman, Oluf;
Dotterud, Ole Morten;
Andreassen, Jens-Petter.
(2020)
Impurity Uptake During Cooling Crystallization of Nickel Sulfate.
Academic chapter
-
Broby, Margrethe;
Andreassen, Jens-Petter;
Ma, Xiaoguang;
Neteland, Marte.
(2016)
Scaling of calcium carbonate on heated surfaces - Crystallization or particulate fouling?.
Academic chapter
Student thesis or dissertation
-
Andreassen, Jens-Petter.
(2001)
Growth and Aggregation Phenomena in Precipitation of Calcium Carbonate.
Norges teknisk-naturvitenskapelige universitet
Doctoral thesis
Teaching
Courses
- HMS0001 - Health, Safety and Environment (HSE) course for 1st year students
- TKP4570 - Nanotechnology, Specialization Project
- TKP4581 - Chemical Engineering, Specialization Project
- TKP4905 - Nanotechnology, Master's Thesis
- TKP4535 - Environmental Engineering and Reactor Technology, Specialization Course
Outreach
2023
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Conference lectureJoshi, Bhaskar; Ucar, Seniz; Andreassen, Jens-Petter; Bandyopadhyay, Sulalit. (2023) Recovering Lithium Carbonate Using Gas -- Liquid Reactive Crystallization Of Lithium Hydroxide And Carbon Di-Oxide. 28th BIWIC – International Workshop on Industrial Crystallization
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Conference posterAli, Zeeshan; Bandyopadhyay, Sulalit; Andreassen, Jens-Petter. (2023) Investigating the Change in Particle Size, Morphology and Magnetic Properties of Iron Oxide Nanoparticles. International Conference on Sustainable and Applied Nanotechnology for Agriculture and Health
2022
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LectureYounas, Daniyal; Ucar, Seniz; Wang, Lijuan; Andreassen, Jens-Petter; Chushkin, Yuriy; Breiby, Dag Werner; Chattopadhyay, Basab. (2022) X-Ray Nanoscopy Reveals Oriented Growth of Seeded Calcium Carbonate Microparticles. TNNN Conference 2022
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Conference posterAli, Zeeshan; Bandyopadhyay, Sulalit; Andreassen, Jens-Petter. (2022) Control of Particle Size, Particle Size Distribution and Morphology of Silica Coated Iron Oxide Nanoparticles. 36th European Colloid & Interface Society Conference
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Conference lectureAli, Zeeshan; Andreassen, Jens-Petter; Bandyopadhyay, Sulalit. (2022) Influence of Iron Oxide Nanoparticles in Silanization. 18th European Student Colloid Conference
2020
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Conference lectureJenssen, Ina Beate; Ucar, Seniz; Bøckman, Oluf; Dotterud, Ole Morten; Andreassen, Jens-Petter. (2020) Impurity Uptake During Cooling Crystallization of Nickel Sulfate. TMS 2020 - Rare Metal Technology 2020
2018
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Conference lectureJenssen, Ina Beate; Hines, Mona Aufles; Dotterud, Ole Morten; Bøckman, Oluf; Andreassen, Jens-Petter. (2018) Filtration Properties of Ferric Hydroxide Precipitate in Nickel Production. Extraction 2018 - Hydrometallurgy 2018
2017
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Conference posterAntony, Jibin; Raghunathan, Karthik; Bandyopadhyay, Sulalit; Andreassen, Jens-Petter. (2017) Understanding seed mediated growth and growth kinetics of anisotropic gold nanostructures. Nano@NTNU Symposium 2017
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LectureBjørnøy, Sindre Hove; Bassett, David; Schweikle, Manuel; Strand, Berit Løkensgard; Tiainen, Hanna; Ucar, Seniz; Andreassen, Jens-Petter; Sikorski, Pawel. (2017) Bioinspired mineralization of hydrogels. European Materials Research Society Spring Meeting 2017
2016
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Conference posterBjørnøy, Sindre Hove; Bassett, David; Ucar, Seniz; Andreassen, Jens-Petter; Sikorski, Pawel. (2016) Correlative microscopy and spectroscopy studies of calcium phosphate mineralization processes within alginate hydrogels. Gordon Research Conference on Biomineralization
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Conference posterRaghunathan, Karthik; Bandyopadhyay, Sulalit; Mcdonagh, Birgitte Hjelmeland; Andreassen, Jens-Petter. (2016) Tracking the Growth of Anisotropic Gold Nanostructures. Nano@NTNU Symposium 2016
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LectureMa, Xiaoguang; Beck, Ralf; Andreassen, Jens-Petter. (2016) Secondary Nucleation of Calcium Carbonate. The 18th International Conference on Crystal Growth and Epitaxy
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Conference lectureUcar, Seniz; Bjørnøy, Sindre Hove; Bassett, David; Strand, Berit Løkensgard; Sikorski, Pawel; Andreassen, Jens-Petter. (2016) Transformation Kinetics of Brushite to Hydroxyapatite. The 18th International conference on Crystal Growth and Epitaxy
2015
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LectureBjørnøy, Sindre Hove; Bassett, David; Mandaric, Steffan; Strand, Berit Løkensgard; Andreassen, Jens-Petter; Ucar, Seniz; Sikorski, Pawel. (2015) Mineralisation of alginate hydrogels. 8th Kyoto International Forum for Environment and Energy (KIFEE)
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Conference lectureMa, Xiaoguang; Ma'mun, Sholeh; Andreassen, Jens-Petter. (2015) Selection and Characterization of Phase-Change Solvents for Carbon Dioxide Capture: Precipitation Behavior. 8th Trondheim CCS Conference (TCCS-8)
2014
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Conference posterUcar, Seniz; Bjørnøy, Sindre Hove; Bassett, David; Strand, Berit Løkensgard; Sikorski, Pawel; Andreassen, Jens-Petter. (2014) Brushite Crystallization in Alginate Beads. ISC Granada 2014
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Conference posterBjørnøy, Sindre Hove; Bassett, David; Ucar, Seniz; Andreassen, Jens-Petter; Strand, Berit Løkensgard; Sikorski, Pawel. (2014) An investigation of acidic calcium phosphates in mineralised alginate hydrogels. Scandinavian Society for Biomaterials, 7th annual meeting;
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Conference lectureAndreassen, Jens-Petter. (2014) Aggregation or crystal growth? A comparison of calcium carbonate and barium sulphate precipitation. BACG 2014: Annual Conference of the British Association for Crystal Growth
2013
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Conference posterNergaard, Margrethe; Beck, Ralf; Hyllestad, Ketil; Andreassen, Jens-Petter. (2013) Scale formation on heated surfaces. 20th International Workshop on Industrial Crystallization (BIWIC2013)
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Conference lectureAndreassen, Jens-Petter; Beck, Ralf; Wang, Lijuan; Nergaard, Margrethe. (2013) The importance of supersaturation for the morphology development of calcium carbonate. XXII International Material Research Congress 2013
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Conference lectureSingh, Gurvinder; Helvoort, Antonius Van; Bandyopadhyay, Sulalit; Volden, Sondre; Andreassen, Jens-Petter; Glomm, Wilhelm. (2013) Shape and Size Controlled Synthesis of Metal Nanostructures. 8th Nanolab usermeeting
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LectureBassett, David; Bjørnøy, Sindre Hove; Strand, Berit Løkensgard; Andreassen, Jens-Petter; Sikorski, Pawel. (2013) Mineralised alginate based hydrogel composites for tissue engineering. Advances in Tissue Regeneration 2013 Conference
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Conference posterMa, Xiaoguang; Andreassen, Jens-Petter. (2013) Precipitation in CO2 Capture Processes. 20th International Workshop on Industrial Crystalliation (BIWIC 2013)
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Conference lectureMa, Xiaoguang; Ma'mun, Sholeh; Andreassen, Jens-Petter. (2013) Selection and Characterization of Phase-Change Solvent for Carbon Dioxide Capture: Precipitation Behavior Study. The 7th Trondheim CCS Conference (TCCS-7)
2012
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LectureAndreassen, Jens-Petter. (2012) Hva har toppen av Mount Everest til felles med kråkeboller og innsiden av oljerør ?. Motivasjonsforedrag
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Conference posterNergaard, Margrethe; Beck, Ralf; Barland, Astrid Odland; Andreassen, Jens-Petter. (2012) On the Determination of Nucleation Rates from Induction Time Measurements for Calcium Carbonate. 19th International Workshop on Industrial Crystalliation (BIWIC 2012)
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Conference posterBeck, Ralf; Vatneberg, Stine; Nergaard, Margrethe; Andreassen, Jens-Petter. (2012) Scaling of Calcium Carbonate on Stainless Steel Surfaces in Mixed Solutions of Monoethylene Glycol and Water. HIW 2012 HANBAT International Workshop on Industrial and Pharmaceutical Crystallizaton
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Conference posterMa, Xiaoguang; Beck, Ralf; Andreassen, Jens-Petter. (2012) Crystal Growth Kinetics of Potassium Bicarbonate in Water. 19th International Workshop on Industrial Crystalliation (BIWIC 2012)
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Conference posterWang, Lijuan; Beck, Ralf; Andreassen, Jens-Petter. (2012) The induction time and growth morphology of gold particles precipitated by reduction with ascorbic acid at different pH values. 19th International Workshop on Industrial Crystalliation (BIWIC 2012)
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Conference posterBeck, Ralf; Nergaard, Margrethe; Andreassen, Jens-Petter. (2012) Crystal Growth of Calcite at Conditions of Gas Processing. 19th International Workshop on Industrial Crystalliation (BIWIC 2012)
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Conference lectureAndreassen, Jens-Petter; Nergaard, Margrethe; Beck, Ralf. (2012) On the emerging non-classical crystallization paradigm- examples from calcium carbonate precipitaton. 19th International Workshop on Industrial Crystalliation (BIWIC 2012)
2011
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Conference lectureMa, Xiaoguang; Kim, Inna; Andreassen, Jens-Petter; Knuutila, Hanna; Beck, Ralf. (2011) PRECIPITATION OF PIPERAZINE IN THE PIPERAZINE-H2O-CO2 SYSTEM. 18th International Symposium on Industrial Crystallization (ISIC 18)
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Conference lectureSalmimies, Riina; Häkkinen, Antti; Ekberg, Bjarne; Kallas, Juha; Andreassen, Jens-Petter; Beck, Ralf. (2011) Removal of calcium scales from the surface of a ceramic filter medium. Filtech Exhibitions Germany, Filtech 2011
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Conference posterKim, Inna; Ma, Xiaoguang; Andreassen, Jens-Petter; Knuutila, Hanna; Beck, Ralf. (2011) Solubility measurements of piperazine. The 6th Trondheim CCS Conference (TCCS-6)
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Conference posterNergaard, Margrethe; Beck, Ralf; Andreassen, Jens-Petter. (2011) Scaling of Calcium Carbonate on Heated Surfaces at Constant Supersaturation. 18th International Symposium on Industrial Crystallization (ISIC 18)
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Conference lectureBeck, Ralf; Andreassen, Jens-Petter. (2011) The Influence of Crystallization Conditions on the Growth of Calcium Carbonate. International Conference on Materials for Advanced Technologies (ICMAT 2011)
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Conference posterBeck, Ralf; Mohamed, Rizqah; Lewis, Alison Emslie; Andreassen, Jens-Petter. (2011) Growth and Morphology of the Vaterite Polymorph of Calcium Carbonate at Constant Supersaturation. 18th International Symposium on Industrial Crystallization (ISIC 18)
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Feature articleGregersen, Øyvind Weiby; Svendsen, Hallvard Fjøsne; Andreassen, Jens-Petter. (2011) Minneord over professor Gunnar Thorsen.
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Conference lectureSalmimies, Riina; Häkkinen, Antti; Kallas, Juha; Ekberg, Bjarne; Andreassen, Jens-Petter; Beck, Ralf. (2011) Characterisation of long-term scaling effects of ceramic filter media used in the dewatering of iron ore. Iron Ore 2011
2010
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Conference posterOlderøy, Magnus Østgård; Xie, Minli; Strand, Berit Løkensgard; Draget, Kurt Ingar; Andreassen, Jens-Petter; Sikorski, Pawel. (2010) Powerful Polymorph Selection in the Calcium Carbonate System by Well Defined Alginate Oligomers. Gordon Research Conference: Biomineralization
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Conference posterXie, Minli; Olderøy, Magnus Østgård; Strand, Berit Løkensgard; Standal, Therese; Zhang, Zhibing; Andreassen, Jens-Petter; Sikorski, Pawel. (2010) Bio-inspired mineralization of alginate hydrogels with hydroxyapatite for new composite materials in tissue engineering. Gordon Research Conference: Biomineralization
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Conference lectureSaiersten, Marion; Brendsdal, Egil; Deshmukh, Salim Abdul R K.; Dugstad, Arne; Endrestøl, Guttorm; Ek, Arild; Watterud, Geir; Andreassen, Jens-Petter. (2010) Development of a simulator for ethylene glycol loops based on solution thermodynamics and particle formation kinetics. NACE Corrosion 2010
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Conference lectureBeck, Ralf; Andreassen, Jens-Petter. (2010) Pressure Filtration of three Industrially Important Substances and its Dependency on Crystallization Conditions, Size and Morphology. The 13th Nordic Filtration Symposium
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Conference lectureSalmimies, Riina; Häkkinen, Antti; Kallas, Juha; Ekberg, Bjarne; Andreassen, Jens-Petter; Beck, Ralf. (2010) Characterization of filter media used in the dewatering of iron ore. 13th Nordic Filtration Symposium
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Conference lectureXie, Minli; Olderøy, Magnus Østgård; Strand, Berit Løkensgard; Andreassen, Jens-Petter; Sikorski, Pawel. (2010) Nanoscale control of mineral deposition within alginate gel networks. Biophysics meeting, Kongsvold 2010
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Conference lectureOlderøy, Magnus Østgård; Xie, Minli; Østnæs, Simen; Strand, Berit Løkensgard; Draget, Kurt Ingar; Andreassen, Jens-Petter; Sikorski, Pawel. (2010) Control of calcium carbonate crystal polymorphism and morphology by high molecular weight alginate and well defined alginate oligomers. Biophysics meeting, Kongsvold 2010
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Conference lectureOlderøy, Magnus Østgård; Xie, Minli; Strand, Berit Løkensgard; Draget, Kurt Ingar; Sikorski, Pawel; Andreassen, Jens-Petter. (2010) Control of calcium carbonate polymorphism and morphology by high molecular weight alginate and well defined alginate oligomers. International Workshop on Industrial Crystallization (BIWIC)
2009
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Conference posterXie, Minli; Olderøy, Magnus Østgård; Strand, Berit Løkensgard; Andreassen, Jens-Petter; Sikorski, Pawel. (2009) Alginate/CaCO3 Composite Biomaterials. NTNU Nanolab Usermeeting 2009
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Conference lectureBeck, Ralf; Malthe-Sørenssen, Didrik; Andreassen, Jens-Petter. (2009) Crystallization and Filtration of CaCO3. BIWIC 2009 16th International Workshop on Industrial Crystallization
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Conference lectureFlaten, Ellen Marie; Seiersten, M.; Sivanesan, Vaseeharan; Bergsted, Elin; Andreassen, Jens-Petter. (2009) The crystal growth rate of calcium carbonate at conditions of hydrate inhibition in gas processing systems. The 20th international Oil Field Chemistry Symposium
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Conference lectureAndreassen, Jens-Petter; Brendsdal, E.; Deshmukh, Salim Abdul R K.; Endrestøl, G.; Ek, A.; Dugstad, A.; Flaten, Ellen Marie; Seiersten, M.; Watterud, Geir. (2009) Development of a simulator for ethylene glycol loops based on solution thermodynamics and particle formation kinetics. 20th International Oilfield Chemistry Symposium
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Conference lectureWatterud, Geir; Seiersten, M.; Andreassen, Jens-Petter. (2009) Iron Carbonate in MEG/Water mixtures. Solubility, thermodynamic and kinetic measurements. The 20th international Oil Field Chemistry Symposium
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Conference posterXie, Minli; Olderøy, Magnus Østgård; Strand, Berit Løkensgard; Andreassen, Jens-Petter; Sikorski, Pawel. (2009) Alginate/CaCO3 Composite Biomaterials. NANOMAT conference 2009
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Conference lectureOlderøy, Magnus Østgård; Xie, Minli; Østnæs, Simen; Andreassen, Jens-Petter; Strand, Berit Løkensgard; Sikorski, Pawel. (2009) Alginate/CaCO3 Biomaterials. Bone-Tec 2009
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Conference posterFlaten, Ellen Marie; Seiersten, M.; Sivanesan, Vaseeharan; Andreassen, Jens-Petter. (2009) Growth rates of calcium carbonate in mono ethylene glycol and water. BIWIC 2009 16th International Workshop on Industrial Crystallization
2008
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Conference posterOlderøy, Magnus Østgård; Strand, Berit Løkensgard; Andreassen, Jens-Petter; Sikorski, Pawel. (2008) Alginate Gel Beads as Model System for Biomineralization. Nanotechnology@NTNU 2008
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Conference posterOlderøy, Magnus Østgård; Strand, Berit Løkensgard; Andreassen, Jens-Petter; Sikorski, Pawel. (2008) Nanoscale Control of Mineral Deposition Within Polysaccharide Gel Networks. Biofysikkmøtet Kongsvold 2008
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Conference lectureFlaten, Ellen Marie; Andreassen, Jens-Petter. (2008) Investigations of spherulitic growth in industrial crystallization. ISIC2008
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Conference lectureFlaten, Ellen Marie; Watterud, Geir; Andreassen, Jens-Petter; Seiersten, Marion. (2008) Precipitation of iron and calcium carbonate in pipelines at varying MEG contents. 2008 SPE Ninth International Conference on Oilfield Scale
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Conference lectureFlaten, Ellen Marie; Fostenæs, Siv Monica; Andreassen, Jens-Petter. (2008) The effect of HEDP on calcium carbonate precipitation. BIWIC2008
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Conference lectureFlaten, Ellen Marie; Andreassen, Jens-Petter. (2008) Induction time studies of calcium carbonate in ethylene glycol and water. ISIC 2008
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Conference posterVolden, Sondre; Beck, Ralf; Opedal, Nils; Zhu, Kaizheng; Nyström, Bo; Andreassen, Jens-Petter; Glomm, Wilhelm. (2008) Low Temperature Synthesis of Gold Nanoparticles using Ascorbic Acid and Cellulose Derivates. 1st Nanotechnology@NTNU
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Conference lectureOlderøy, Magnus Østgård; Strand, Berit Løkensgard; Andreassen, Jens-Petter; Sikorski, Pawel. (2008) Biomineralization: Nanoscale Control of Mineral Deposition Within Polysaccharide Gel Networks. Nanotech Northern Europe 2008
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Conference lectureBeck, Ralf; Malthe-Sørenssen, Didrik; Andreassen, Jens-Petter; Häkkinen, Antti; Louhi-Kultanen, Majata. (2008) The Influence of Morphology and Size on Constant Pressure Filtration for two Crystallizing Systems. 10th World Filtration Congress,
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Conference lectureVolden, Sondre; Opedal, Nils; Andreassen, Jens-Petter; Nyström, Bo; Glomm, Wilhelm. (2008) Polymer assisted nanoparticle synthesis. Polymer Meeting
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Conference lectureBeck, Ralf; Malthe-Sørenssen, Didrik; Andreassen, Jens-Petter. (2008) The influence of Process Parameters and Resulting Crystal Properties on Constant pressure Filtration of L-Glutamic Acid and an Aromatic Amine. ISIC 17 (17th INTERNATIONAL SYMPOSIUM ON INDUSTRIAL CRYSTALLIZATION),
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Conference lectureFlaten, Ellen Marie; Seiersten, Marion; Andreassen, Jens-Petter. (2008) Nucleation and crystal growth determination for CaCo3. Crystallization seminar. Crypow
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Conference lectureBeck, Ralf; Malthe-Sørenssen, Didrik; Andreassen, Jens-Petter; Nysæther, Trude; Enstad, G. G.. (2008) Influence of Crystal Properties on Powder Flow Behaviour. International Symposium Reliable Flow of Particulate Solids IV (RELPOWFLO IV),
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Conference lectureAndreassen, Jens-Petter; Flaten, Ellen Marie; Beck, Ralf. (2008) Investigations of spherulitic growth in industrial crystallization. SIC 17 (17th INTERNATIONAL SYMPOSIUM ON INDUSTRIAL CRYSTALLIZATION
2007
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Conference posterDeshmukh, Salim Abdul R K.; Seiersten, M.; Dugstad, A.; Flaten, Ellen Marie; Andreassen, Jens-Petter. (2007) Some Aspects of MEG Regeneration Loop in Unprocessed Gas Condensate Pipelines. SPE Workshop: Managing Oilfield Scale in the 21th century
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Conference posterBeck, Ralf; Malthe-Sørenssen, Didrik; Andreassen, Jens-Petter. (2007) The onset of polycrystalline Growth in precipitation of L-glutamic acid compared to an aromatic amine derivative. 14th International Workshop on Industrial Crystallization (BIWIC)
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Conference lectureFlaten, Ellen Marie; Andreassen, Jens-Petter. (2007) Effect of Mono Ethylene Glycol on the Precipitation of Calcium Carbonate. 18th International Oil Field Chemistry Symposium
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Conference lectureBeck, Ralf; Nysæter, T.; Andreassen, Jens-Petter. (2007) The Influence of Process Parameters and Resulting Crystal Properties on Filtration and Powder Handling of 2 crystallizing systems. POSTEC Annual General Meeting 2007
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Conference lectureFlaten, Ellen Marie; Andreassen, Jens-Petter. (2007) Polymorphism and nucleation kinetics in precipitation of calcium carbonate in water and ethylene glycol. 4th International Workshop on Industrial Crystallization (BIWIC)
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Conference lectureAndreassen, Jens-Petter. (2007) Crystallization in mono ethylene glycol (MEG) systems for gas processing. Seminar i Industriell Krystallisasjon
2006
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Conference lectureOchoa-Fernandez, Esther; Haugen, Geir; Zhao, Tiejun; Rusten, Hans Kristian; Andreassen, Jens-Petter; Rønning, Magnus; Jakobsen, Hugo Atle; Aartun, Ingrid; Børresen, Børre; Rytter, Erling. (2006) Design, preparation and applications of CO2 acceptors in power generation with CO2 management. 12th International Conference on Greenhouse Gas Control Technologies, GHGT-8
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Conference lectureAndreassen, Jens-Petter. (2006) The influence of crystallization processes on particle characteristics and solid-liquid separation. POSTEC Annual General Meeting
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Conference posterDeshmukh, Salim Abdul R K.; Seiersten, M.; Dugstad, A.; Andreassen, Jens-Petter. (2006) Optimisation of glycol (MEG) loop and operation for long tie.ins carrying unprocessed gas condensate. 111th International Summer Course by BASF Aktiengesellschaft
2005
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Conference posterAndreassen, Jens-Petter; Malthe-Sørenssen, Didrik. (2005) The Importance of Sperulitic Growth Identification in Industrial Crystallisation. 16th International Symposium on Industrial Crystallization
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Conference posterNygjelten, Eva; Andreassen, Jens-Petter. (2005) Particle Size-Enlargement in Alkali Jarosite Precipitation. 16th International Symposium on Industrial Crystallization
2002
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Conference lectureAndreassen, Jens-Petter; Thorsen, Gunnar. (2002) On the Precipitation of Calcium Carbonate at High Supersaturation. 15th International Symposium on Industrial Crystallization