Jens-Petter Andreassen
+4773594209
Kjemi 4, 4.302, Gløshaugen, Sem Sælands vei 6
About
I am Head of Department of chemical engineering. Our department brings chemistry from the lab to industrial scale. We study chemical reactions and how we can affect their rate in order to improve the process design. This involves the understanding of chemistry and materials on nano level, interfaces between solid, liquid and gas phases, and how this affects the exchange of heat and mass in a processing plant. With this knowledge we formulate mathematical models and simulate different processes in large scale, which we can validate by experimental studies in our laboratories and pilot plant equipment. We have made a strategic decision to invest our efforts in sustainable solutions for the future. This implies that we increase our research in how to apply biological raw materials and biochemistry to develop energy, new materials and chemicals.
When I am not HoD I am professor at the department, 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
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.
volum 62 (12).
Academic article
2021
-
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.
volum 11 (12).
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.
volum 202.
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.
volum 2(5).
Academic article
-
Jenssen, Ina Beate;
Ucar, Seniz;
Bøckman, Oluf;
Dotterud, Ole Morten;
Andreassen, Jens-Petter.
(2020)
Impurity Uptake During Cooling Crystallization of Nickel Sulfate.
Rare Metal Technology 2020.
Academic chapter/article/Conference paper
-
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.
volum 2 (5).
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.
volum 256.
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.
volum 173.
Academic article
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.
volum 7 (1).
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.
volum 79 (9).
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.
volum 19 (12).
Academic article
-
Wang, Lijuan;
Andreassen, Jens-Petter;
Ucar, Seniz.
(2019)
Precipitation of silver particles with controlled morphologies from aqueous solutions.
CrysteEngComm.
volum 22 (3).
Academic article
2018
-
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.
volum 13:254.
Academic article
-
Jenssen, 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- Proceedings of the First Global Conference on Extractive Metallurgy.
Academic chapter/article/Conference paper
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.
volum 70.
Letter to the editor
-
Ucar, Seniz;
Bjørnøy, Sindre Hove;
Bassett, David;
Strand, Berit Løkensgard;
Sikorski, Pawel;
Andreassen, Jens-Petter.
(2017)
Transformation of brushite to hydroxyapatite and effects of alginate additives.
Journal of Crystal Growth.
volum 468.
Academic article
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.
volum 11 (1).
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.
volum 44.
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.
volum 44.
Academic article
-
Broby, Margrethe;
Andreassen, Jens-Petter;
Ma, Xiaoguang;
Neteland, Marte.
(2016)
Scaling of Calcium Carbonate on Heated Surfaces - Crystallization or Particulate Fouling?.
SPE International Oilfield Scale Conference and Exhibition 2016.
Academic chapter/article/Conference paper
2015
-
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.
volum 2015-January.
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.
volum 15 (11).
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.
volum 37 (8).
Academic article
-
Singh, Gurvinder;
Van Helvoort, Antonius;
Bandyopadhyay, Sulalit;
Volden, Sondre;
Andreassen, Jens-Petter;
Glomm, Wilhelm.
(2014)
Synthesis of Au nanowires with controlled morphological and structural characteristics.
Applied Surface Science.
volum 311.
Academic article
-
Wang, Lijuan;
Andreassen, Jens-Petter.
(2014)
Spherulitic Growth of Gold Particles Precipitated from Aqueous Solution.
Chemical Engineering & Technology.
volum 37 (8).
Academic article
2013
-
Beck, Ralf;
Seiersten, Marion;
Andreassen, Jens-Petter.
(2013)
The constant composition method for crystallization of calcium carbonate at constant supersaturation.
Journal of Crystal Growth.
volum 380.
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.
volum 119.
Academic article
2012
-
Andreassen, Jens-Petter;
Beck, Ralf;
Nergaard, Margrethe.
(2012)
Biomimetic type morphologies of calcium carbonate grown in absence of additives.
Faraday discussions.
volum 159.
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.
volum 58 (1).
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.
volum 47 (4).
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.
volum 23.
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.
volum 51 (37).
Academic article
-
Nergaard, Margrethe;
Beck, Ralf;
Andreassen, Jens-Petter.
(2012)
Scaling of Calcium Carbonate on a Heated Surface in a Flow-Through System.
HIW 2012 HANBAT International Workshop on Industrial and Pharmaceutical Crystallizaton.
Academic chapter/article/Conference paper
-
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.
volum 23.
Abstract
-
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.
volum 6.
Abstract
-
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.
volum 23 (7).
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.
volum 2 (4).
Academic article
2011
-
Beck, Ralf;
Flaten, Ellen Marie;
Andreassen, Jens-Petter.
(2011)
Influence of Crystallization Conditions on the Growth of Polycrystalline Particles.
Chemical Engineering & Technology.
volum 34 (4).
Academic article
-
Gregersen, Øyvind Weiby;
Svendsen, Hallvard Fjøsne;
Andreassen, Jens-Petter.
(2011)
Minneord over professor Gunnar Thorsen.
Årbok - Norges Tekniske Vitenskapsakademi (NTVA).
Feature 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.
volum 11 (2).
Academic article
2010
-
Andreassen, Jens-Petter;
Flaten, Ellen Marie;
Beck, Ralf;
Lewis, Alison Emslie.
(2010)
Investigations of spherulitic growth in industrial crystallization.
Chemical engineering research & design.
volum 88 (9A).
Academic article
-
Beck, Ralf;
Andreassen, Jens-Petter.
(2010)
Spherulitic Growth of Calcium Carbonate.
Crystal Growth & Design.
volum 10 (7).
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.
17th International Workshop on Industial Crystallization (BIWIC 2010).
Academic chapter/article/Conference paper
-
Beck, Ralf;
Andreassen, Jens-Petter.
(2010)
The onset of spherulitic growth in crystallization of calcium carbonate.
Journal of Crystal Growth.
volum 312 (15).
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.
volum 45 (2).
Academic article
-
Beck, Ralf;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2010)
Formation and ageing of L-glutamic acid spherulites.
Crystal Research & Technology.
volum 45 (7).
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.
volum 28 (2).
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).
volum 45 (9).
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.
volum 312 (7).
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.
volum 88 (12A).
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.
volum 6 (9).
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.
volum 66 (3).
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.
volum 311 (2).
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.
volum 311 (13).
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".
Wiley-Blackwell. 2009.
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.
volum 9 (12).
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.
BIWIC 2008.
Academic chapter/article/Conference paper
-
Flaten, Ellen Marie;
Siv Monica, Fostenæs;
Andreassen, Jens-Petter.
(2008)
The effect of HEDP on calcium carbonate precipitation.
BIWIC 2008.
Academic chapter/article/Conference paper
2005
-
Andreassen, Jens-Petter.
(2005)
Formation mechanism and morphology in precipitation of vaterite - nano aggregation or crystal growth?.
Journal of Crystal Growth.
volum 274.
Academic article
2004
-
Andreassen, Jens-Petter;
Hounslow, Mike J..
(2004)
Growth and Aggregation of Vaterite in Seeded-Batch Experiments.
AIChE Journal.
volum 50 (11).
Academic article
2001
-
Andreassen, Jens-Petter.
(2001)
Growth and Aggregation Phenomena in Precipitation of Calcium Carbonate.
2001.
Doctoral dissertation
Journal publications
-
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.
volum 62 (12).
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.
volum 11 (12).
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.
volum 202.
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.
volum 2(5).
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.
volum 2 (5).
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.
volum 256.
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.
volum 173.
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.
volum 7 (1).
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.
volum 79 (9).
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.
volum 19 (12).
Academic article
-
Wang, Lijuan;
Andreassen, Jens-Petter;
Ucar, Seniz.
(2019)
Precipitation of silver particles with controlled morphologies from aqueous solutions.
CrysteEngComm.
volum 22 (3).
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.
volum 13:254.
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.
volum 70.
Letter to the editor
-
Ucar, Seniz;
Bjørnøy, Sindre Hove;
Bassett, David;
Strand, Berit Løkensgard;
Sikorski, Pawel;
Andreassen, Jens-Petter.
(2017)
Transformation of brushite to hydroxyapatite and effects of alginate additives.
Journal of Crystal Growth.
volum 468.
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.
volum 11 (1).
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.
volum 44.
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.
volum 44.
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.
volum 2015-January.
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.
volum 15 (11).
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.
volum 37 (8).
Academic article
-
Singh, Gurvinder;
Van Helvoort, Antonius;
Bandyopadhyay, Sulalit;
Volden, Sondre;
Andreassen, Jens-Petter;
Glomm, Wilhelm.
(2014)
Synthesis of Au nanowires with controlled morphological and structural characteristics.
Applied Surface Science.
volum 311.
Academic article
-
Wang, Lijuan;
Andreassen, Jens-Petter.
(2014)
Spherulitic Growth of Gold Particles Precipitated from Aqueous Solution.
Chemical Engineering & Technology.
volum 37 (8).
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.
volum 380.
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.
volum 119.
Academic article
-
Andreassen, Jens-Petter;
Beck, Ralf;
Nergaard, Margrethe.
(2012)
Biomimetic type morphologies of calcium carbonate grown in absence of additives.
Faraday discussions.
volum 159.
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.
volum 58 (1).
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.
volum 47 (4).
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.
volum 23.
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.
volum 51 (37).
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.
volum 23.
Abstract
-
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.
volum 6.
Abstract
-
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.
volum 23 (7).
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.
volum 2 (4).
Academic article
-
Beck, Ralf;
Flaten, Ellen Marie;
Andreassen, Jens-Petter.
(2011)
Influence of Crystallization Conditions on the Growth of Polycrystalline Particles.
Chemical Engineering & Technology.
volum 34 (4).
Academic article
-
Gregersen, Øyvind Weiby;
Svendsen, Hallvard Fjøsne;
Andreassen, Jens-Petter.
(2011)
Minneord over professor Gunnar Thorsen.
Årbok - Norges Tekniske Vitenskapsakademi (NTVA).
Feature 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.
volum 11 (2).
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.
volum 88 (9A).
Academic article
-
Beck, Ralf;
Andreassen, Jens-Petter.
(2010)
Spherulitic Growth of Calcium Carbonate.
Crystal Growth & Design.
volum 10 (7).
Academic article
-
Beck, Ralf;
Andreassen, Jens-Petter.
(2010)
The onset of spherulitic growth in crystallization of calcium carbonate.
Journal of Crystal Growth.
volum 312 (15).
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.
volum 45 (2).
Academic article
-
Beck, Ralf;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2010)
Formation and ageing of L-glutamic acid spherulites.
Crystal Research & Technology.
volum 45 (7).
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.
volum 28 (2).
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).
volum 45 (9).
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.
volum 312 (7).
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.
volum 88 (12A).
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.
volum 6 (9).
Academic article
-
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.
volum 66 (3).
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.
volum 311 (2).
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.
volum 311 (13).
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.
volum 9 (12).
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
-
Andreassen, Jens-Petter.
(2005)
Formation mechanism and morphology in precipitation of vaterite - nano aggregation or crystal growth?.
Journal of Crystal Growth.
volum 274.
Academic article
-
Andreassen, Jens-Petter;
Hounslow, Mike J..
(2004)
Growth and Aggregation of Vaterite in Seeded-Batch Experiments.
AIChE Journal.
volum 50 (11).
Academic article
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".
Wiley-Blackwell. 2009.
Visual Arts
Part of book/report
-
Jenssen, Ina Beate;
Ucar, Seniz;
Bøckman, Oluf;
Dotterud, Ole Morten;
Andreassen, Jens-Petter.
(2020)
Impurity Uptake During Cooling Crystallization of Nickel Sulfate.
Rare Metal Technology 2020.
Academic chapter/article/Conference paper
-
Jenssen, 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- Proceedings of the First Global Conference on Extractive Metallurgy.
Academic chapter/article/Conference paper
-
Broby, Margrethe;
Andreassen, Jens-Petter;
Ma, Xiaoguang;
Neteland, Marte.
(2016)
Scaling of Calcium Carbonate on Heated Surfaces - Crystallization or Particulate Fouling?.
SPE International Oilfield Scale Conference and Exhibition 2016.
Academic chapter/article/Conference paper
-
Nergaard, Margrethe;
Beck, Ralf;
Andreassen, Jens-Petter.
(2012)
Scaling of Calcium Carbonate on a Heated Surface in a Flow-Through System.
HIW 2012 HANBAT International Workshop on Industrial and Pharmaceutical Crystallizaton.
Academic chapter/article/Conference paper
-
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.
17th International Workshop on Industial Crystallization (BIWIC 2010).
Academic chapter/article/Conference paper
-
Beck, Ralf;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2008)
The Unstable Nature of β-L-Glutamic Acid Spherulites.
BIWIC 2008.
Academic chapter/article/Conference paper
-
Flaten, Ellen Marie;
Siv Monica, Fostenæs;
Andreassen, Jens-Petter.
(2008)
The effect of HEDP on calcium carbonate precipitation.
BIWIC 2008.
Academic chapter/article/Conference paper
Report
-
Andreassen, Jens-Petter.
(2001)
Growth and Aggregation Phenomena in Precipitation of Calcium Carbonate.
2001.
Doctoral dissertation
Teaching
Courses
- HMS0001 - Health, Safety and Environment (HSE) course for 1rst year students
- TKP4580 - Chemical Engineering, Specialization Project
- TKP4905 - Nanotechnology, Master's Thesis
- TKP4570 - Nanotechnology, Specialization Project
- TKP4581 - Chemical Engineering, Specialization Project
- TKP4900 - Chemical Process Technology, Master's Thesis
- TKP4901 - Chemical Process Technology, Master's Thesis
- TKP4535 - Environmental Engineering and Reactor Technology, Specialization Course
Media
2022
-
Academic lectureAli, Zeeshan; Andreassen, Jens-Petter; Bandyopadhyay, Sulalit. (2022) Influence of Iron Oxide Nanoparticles in Silanization. 18th European Student Colloid Conference . European Colloid & Interface Society and MKE; Szeged. 2022-06-26 - 2022-06-30.
-
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 . European Colloid & Interface Society; Chania, Crete. 2022-09-04 - 2022-09-09.
-
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 . NTNU; Trondheim. 2022-11-30 - 2022-12-02.
2020
-
Academic 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 . The Minerals, Metals & Materials Society; San Diego Convention Center, California. 2020-02-23 - 2020-02-27.
2018
-
Academic lectureJenssen, Ina Beate; Aufles Hines, Mona; Dotterud, Ole Morten; Bøckman, Oluf; Andreassen, Jens-Petter. (2018) Filtration Properties of Ferric Hydroxide Precipitate in Nickel Production. Extraction 2018 - Hydrometallurgy 2018 . MetSoc, CIM, SME, and TMS; Ottawa. 2018-08-26 - 2018-08-29.
2017
-
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 . NTNU NanoLab; Trondheim. 2017-12-06 - 2017-12-07.
-
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 . European Materials Research Society; Strasbourg. 2017-05-21 - 2017-05-26.
2016
-
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 . GRC; Girona. 2016-08-14 - 2016-08-19.
-
LectureMa, Xiaoguang; Beck, Ralf; Andreassen, Jens-Petter. (2016) Secondary Nucleation of Calcium Carbonate. The 18th International Conference on Crystal Growth and Epitaxy ; 2016-08-07 - 2016-08-12.
-
PosterRaghunathan, Karthik; Bandyopadhyay, Sulalit; McDonagh, Birgitte Hjelmeland; Andreassen, Jens-Petter. (2016) Tracking the Growth of Anisotropic Gold Nanostructures. Nano@NTNU Symposium 2016 . NTNU NanoLab; Trondheim. 2016-11-17 - 2016-11-18.
-
Academic 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 ; Nagoya Congress Center. 2016-08-07 - 2016-08-12.
2015
-
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) . Kyoto International Forum for Environment and Energy; Trondheim. 2015-09-20 - 2015-09-23.
-
Academic 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) ; Trondheim. 2015-06-16 - 2015-06-18.
2014
-
Academic 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 ; Leeds. 2014-07-13 - 2014-07-15.
-
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; . Scandinavian Society for Biomaterials; Århus. 2014-03-24 - 2014-03-28.
-
PosterUcar, Seniz; Bjørnøy, Sindre Hove; Bassett, David; Strand, Berit Løkensgard; Sikorski, Pawel; Andreassen, Jens-Petter. (2014) Brushite Crystallization in Alginate Beads. ISC Granada 2014 ; 2014-05-25 - 2014-05-30.
2013
-
Academic 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 ; Cancun. 2013-08-11 - 2013-08-15.
-
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 . University of Twente; Lattrop. 2013-11-14 - 2013-11-15.
-
PosterMa, Xiaoguang; Andreassen, Jens-Petter. (2013) Precipitation in CO2 Capture Processes. 20th International Workshop on Industrial Crystalliation (BIWIC 2013) ; 2013-09-18 - 2013-09-20.
-
Academic 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) ; Trondheim. 2013-06-04 - 2013-06-06.
-
PosterNergaard, Margrethe; Beck, Ralf; Hyllestad, Ketil; Andreassen, Jens-Petter. (2013) Scale formation on heated surfaces. 20th International Workshop on Industrial Crystallization (BIWIC2013) ; Odense. 2013-09-18 - 2013-09-20.
-
Academic lectureSingh, Gurvinder; Van Helvoort, Antonius; Bandyopadhyay, Sulalit; Volden, Sondre; Andreassen, Jens-Petter; Glomm, Wilhelm. (2013) Shape and Size Controlled Synthesis of Metal Nanostructures. 8th Nanolab usermeeting . NTNU Nanolab; Trondheim. 2013-11-12 - 2013-11-12.
2012
-
Popular scientific lectureAndreassen, Jens-Petter. (2012) Hva har toppen av Mount Everest til felles med kråkeboller og innsiden av oljerør ?. Motivasjonsforedrag ; NTNU, Trondheim. 2012-02-28.
-
Academic 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) ; Tianjin. 2012-09-07 - 2012-09-09.
-
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) ; Tianjin. 2012-09-07 - 2012-09-09.
-
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 . Hanbat Natonal University; Deajeon. 2012-09-03 - 2012-09-05.
-
PosterMa, Xiaoguang; Beck, Ralf; Andreassen, Jens-Petter. (2012) Crystal Growth Kinetics of Potassium Bicarbonate in Water. 19th International Workshop on Industrial Crystalliation (BIWIC 2012) ; Tianjin. 2012-09-07 - 2012-09-09.
-
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) ; Tianjin. 2012-09-07 - 2012-09-09.
-
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) ; Tianjin. 2012-09-07 - 2012-09-09.
2011
-
Academic 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) ; Singapore. 2011-06-26 - 2011-07-01.
-
PosterBeck, Ralf; Mohamed, Rizqah; Emslie Lewis, Alison; 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) ; Zurich. 2011-09-13 - 2011-09-16.
-
PosterKim, Inna; Ma, Xiaoguang; Andreassen, Jens-Petter; Knuutila, Hanna; Beck, Ralf. (2011) Solubility measurements of piperazine. The 6th Trondheim CCS Conference (TCCS-6) ; Trondheim. 2011-06-14.
-
Academic 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) ; Zurich. 2011-09-13 - 2011-09-16.
-
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) ; Zurich. 2011-09-13 - 2011-09-16.
-
Academic 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 ; Wiesbaden. 2011-03-22 - 2011-03-24.
-
Academic 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 . The Australasian Institute of Mining and Metallurgy; Perth. 2011-07-11 - 2011-07-13.
2010
-
Academic 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 . Lappeenranta University of Technology; Lappeenranta. 2010-06-10 - 2010-06-11.
-
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 ; 2010-08-15 - 2010-08-20.
-
Academic 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) ; 2010-09-08 - 2010-09-10.
-
Academic 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 ; 2010-03-03 - 2010-03-05.
-
Academic 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 ; San Antonio, Texas. 2010-03-14 - 2010-03-18.
-
Academic 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 . Lappeenranta University of Technology; Lappeenranta. 2010-06-10 - 2010-06-11.
-
Academic 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 ; 2010-03-03 - 2010-03-05.
-
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 ; 2010-08-15 - 2010-08-20.
2009
-
Academic 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 ; Geilo. 2009-03-22 - 2009-03-25.
-
Academic lectureBeck, Ralf; Malthe-Sørenssen, Didrik; Andreassen, Jens-Petter. (2009) Crystallization and Filtration of CaCO3. BIWIC 2009 16th International Workshop on Industrial Crystallization . Lappeenranta University of Technology; Lappeenranta. 2009-09-09 - 2009-09-11.
-
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 . Lappeenranta University of Technology; Lappeenranta. 2009-09-09 - 2009-09-11.
-
Academic 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 ; Geilo. 2009-03-22 - 2009-03-25.
-
Academic lectureOlderøy, Magnus Østgård; Xie, Minli; Østnæs, Simen; Andreassen, Jens-Petter; Strand, Berit Løkensgard; Sikorski, Pawel. (2009) Alginate/CaCO3 Biomaterials. Bone-Tec 2009 ; Hannover. 2009-10-08 - 2009-10-11.
-
Academic 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 ; Geilo. 2009-03-22 - 2009-03-25.
-
PosterXie, Minli; Olderøy, Magnus Østgård; Strand, Berit Løkensgard; Andreassen, Jens-Petter; Sikorski, Pawel. (2009) Alginate/CaCO3 Composite Biomaterials. NANOMAT conference 2009 . The Norwegian Research Council; Lillehammer. 2009-06-16 - 2009-06-17.
-
PosterXie, Minli; Olderøy, Magnus Østgård; Strand, Berit Løkensgard; Andreassen, Jens-Petter; Sikorski, Pawel. (2009) Alginate/CaCO3 Composite Biomaterials. NTNU Nanolab Usermeeting 2009 . NTNU Nanolab; NTNU. 2009-05-12 - 2009-05-14.
2008
-
Academic lectureAndreassen, Jens-Petter; Flaten, Ellen Marie; Beck, Ralf. (2008) Investigations of spherulitic growth in industrial crystallization. SIC 17 (17th INTERNATIONAL SYMPOSIUM ON INDUSTRIAL CRYSTALLIZATION ; Maastricht. 2008-09-14 - 2008-09-17.
-
Academic 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), ; Maastrich. 2008-09-14 - 2008-09-17.
-
Academic 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, ; Leipzig. 2008-04-14 - 2008-04-18.
-
Academic 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), ; Tromsø. 2008-06-10.
-
Academic lectureFlaten, Ellen Marie; Andreassen, Jens-Petter. (2008) Induction time studies of calcium carbonate in ethylene glycol and water. ISIC 2008 ; Maastricht. 2008-09-14 - 2008-09-17.
-
Academic lectureFlaten, Ellen Marie; Andreassen, Jens-Petter. (2008) Investigations of spherulitic growth in industrial crystallization. ISIC2008 ; Maastricht. 2008-09-14 - 2008-09-17.
-
Academic lectureFlaten, Ellen Marie; Fostenæs, Siv Monica; Andreassen, Jens-Petter. (2008) The effect of HEDP on calcium carbonate precipitation. BIWIC2008 ; Magdeburg. 2008-09-10 - 2008-09-12.
-
Academic lectureFlaten, Ellen Marie; Seiersten, Marion; Andreassen, Jens-Petter. (2008) Nucleation and crystal growth determination for CaCo3. Crystallization seminar. Crypow ; Oslo. 2008-11-27.
-
Academic 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 ; Aberdeen. 2008-05-28 - 2008-05-29.
-
PosterOlderøy, Magnus Østgård; Strand, Berit Løkensgard; Andreassen, Jens-Petter; Sikorski, Pawel. (2008) Alginate Gel Beads as Model System for Biomineralization. Nanotechnology@NTNU 2008 . NTNU Nanolab; Trondheim. 2008-09-11 - 2008-09-12.
-
Academic 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 ; Copenhagen. 2008-09-23 - 2008-09-25.
-
PosterOlderøy, Magnus Østgård; Strand, Berit Løkensgard; Andreassen, Jens-Petter; Sikorski, Pawel. (2008) Nanoscale Control of Mineral Deposition Within Polysaccharide Gel Networks. Biofysikkmøtet Kongsvold 2008 ; Kongsvold. 2008-02-27 - 2008-02-29.
-
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 . NTNU, Nanolab; NTNU, Trondheim. 2008-09-11 - 2008-09-12.
-
Academic lectureVolden, Sondre; Opedal, Nils; Andreassen, Jens-Petter; Nyström, Bo; Glomm, Wilhelm. (2008) Polymer assisted nanoparticle synthesis. Polymer Meeting ; Vinstra. 2008-03-10 - 2008-03-12.
2007
-
Academic lectureAndreassen, Jens-Petter. (2007) Crystallization in mono ethylene glycol (MEG) systems for gas processing. Seminar i Industriell Krystallisasjon ; Oslo. 2007-11-29.
-
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) ; Cape Town. 2007-09-09 - 2007-09-11.
-
Academic 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 ; Sandefjord. 2007-11-12.
-
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 ; Lisbon. 2007-06-18 - 2007-06-21.
-
Academic lectureFlaten, Ellen Marie; Andreassen, Jens-Petter. (2007) Effect of Mono Ethylene Glycol on the Precipitation of Calcium Carbonate. 18th International Oil Field Chemistry Symposium ; Geilo. 2007-03-25 - 2007-03-28.
-
Academic 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) ; Cape Town. 2007-09-09 - 2007-09-11.
2006
-
Academic lectureOchoa-Fernandez, Esther; Haugen, Geir; Zhao, Tiejun; Rusten, Hans Kristian; Andreassen, Jens-Petter; Rønning, Magnus; Jakobsen, Hugo Atle; Aartun, Ingrid; Børresen, Børre; Rytter, Erling; Rønnekleiv, Morten; Chen, De. (2006) Design, preparation and applications of CO2 acceptors in power generation with CO2 management. 12th International Conference on Greenhouse Gas Control Technologies, GHGT-8 . NTNU; Trondheim. 2006-06-19 - 2006-06-22.
-
Academic lectureAndreassen, Jens-Petter. (2006) The influence of crystallization processes on particle characteristics and solid-liquid separation. POSTEC Annual General Meeting ; Sandefjord. 2006-10-02.
-
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 ; Ludwigshafen. 2006-07-31 - 2006-08-12.
2005
-
PosterAndreassen, Jens-Petter; Malthe-Sørenssen, Didrik. (2005) The Importance of Sperulitic Growth Identification in Industrial Crystallisation. 16th International Symposium on Industrial Crystallization ; Dresden. 2005-09-11 - 2005-09-14.
-
PosterNygjelten, Eva; Andreassen, Jens-Petter. (2005) Particle Size-Enlargement in Alkali Jarosite Precipitation. 16th International Symposium on Industrial Crystallization ; Dresden. 2005-09-11 - 2005-09-14.
2002
-
Academic lectureAndreassen, Jens-Petter; Thorsen, Gunnar. (2002) On the Precipitation of Calcium Carbonate at High Supersaturation. 15th International Symposium on Industrial Crystallization . [Mangler data]; Sorrento, Italy. 2002-09-18.