News - Metal Production
Dr. Daniel Perez Clos successfully defended his thesis May 26th. Daniel did an excellent presentation of the trial lecture: “Mechanisms of ash transport and adhesion on cylindrical tubes in crossflow" followed by the presentation of his PhD thesis “Formation of Hard Grey Scale (HGS) on the Surface of a Cold-finger in the Aluminium Production Industry”.
The MOLTEN 2021 Conference was organized February 21-25, 2021. Several SFI Metal Production members contributed with presentatations at the conference. MOLTEN 2021 was a virtuel event and all presentations had to be recorded and made available at the virtual conference platform. SINTEF researcher Vincent Canaguier's presentation turned out to be one of the top 5 most viewed presentations! The title of his presentation was Foaming during silicomanganese reduction.
The organizer writes that Vincent's enthusiastic presentation helped to make the event a great success! A prize (USD 100) will be transferred to the winner. Congratulations to Vincent!
Attila Kovacs has successfully defended his thesis for Doctor of Philosophy at Oxford University. Attila has been working on fundamental mathematical modelling of alumina dissolution. Highlights from his work involve the identification of characteristic time scales for the freezing-melting-dissolution process as well as determining under which conditions alumina rafts may form. The supervision of Attila has been a successful joint venture between scholars at Oxford and NTNU as well as key researchers in Hydro and NORCE.
Congratulations to Dr. Kovacs!
The Horizon 2020-project SisAl Pilot is coordinated by SFI Metal Production Professor Gabriella Tranell. The project has now made a video that gives information about the innovative pilot.
Enjoy watching the video available on the project website.
The project is an innovative pilot for Silicon production with low environmental impact using secondary Aluminium and silicon raw materials. The project aims to demonstrate a patented novel industrial process to produce silicon (Si, a critical raw material), enabling a shift from today’s carbothermic Submerged Arc Furnace (SAF) process to a far more environmentally and economically sustainable alternative: an aluminothermic reduction of quartz in slag that utilizes secondary raw materials such as aluminium (Al) EoL scrap and dross, as replacements for carbon reductants used today.
The SFI centre funding period is coming to an end in the beginning of 2023. It is important to start the in-depth discussions on how to ensure that the good results and strong research groups are maintained and prolonged. Our ambition is to develop a new SFI project based on the strong fundament of SFI Metal Production. March 2nd we organized a strategy seminar for the SFI Management team on this topic.
SINTEF and NTNU are partners in a newly awarded EU financed project called HARARE. The project will demonstrate sustainable pathways to produce metals using hydrogen as an enabler. Hydrogen as a reductant to substitute carbon is one of the few ways metallurgical industry can potentially become truly free of CO2-emissions.
In 2019, it was estimated that only about 5 % of lithium-ion batteries were recycled. The market for lithium-ion batteries is expected to grow tenfold the coming decade, mostly driven by the growth in the number of electrical vehicles. The low recycling rate and the high growth demonstrates the need for increased focus on recycling and improved recycling technologies. A team of scientists from SINTEF will the coming year be working on innovative solutions for recycling of batteries. Their new ideas spring from their wide experience in recycling of metals and molten salt electrochemistry. SINTEF is financing the project so that new inventions can be patented by SINTEF. Anne Kvithyll, Research Domain leader in SFI Metal Production, is the contact person to this project.
Every 5-10 years NTNU professors are excused of their teaching duties and have the possibility to visit other universities, or cooperating partners, to gain insight. 2020 was the year that Professor Merete Tangstad planned to go to China and Japan to spend some time at University of Science and Technology Beijing and University of Tokyo. Read about Merete’s experience with sabatical 2020, in her own words:
A Roundtable Discussion: Challenges for a Sustainable Aluminum Industry and Advice for the Next Generation
Do you wonder what five well-known specialists both from primary and secondary aluminium industry think is the most critical challenges how we might face them? Then you should read the report from the discussion initiated by SFI RD leader Anne Kvithyld that is printed in the October issue of The Journal of The Minerals, Metals & Materials Society, JOM. You will notice the more optimistic view from China than USA and Europe. And last but not least you will find out what people late in their carriers would have liked to know when they started.
This Autumn researcher Kurian Vachaparambil has joined SFI Metal Production to work in close collaboration with Kristian Etienne Einarsrud (IMA, NTNU) and Halvor Dalaker (SINTEF Industry). The aim of the project is to develop a simulation framework which can be used to simulate industrially relevant reactive flow simulations which can treat both fluid dynamics, heat transfer and chemical reactions.
Simulating of chemically reactive flows are difficult due to the complex coupling between fluid flow, heat transfer and chemical reactions. Modelling these phenomena can provide knowledge to understand the operation of experimental and industrial reactors as well as in developing strategies to optimize these processes like by reducing NOx generation.
Kurian recently submitted his PhD thesis at the electrochemistry group at IMA, NTNU. In his PhD he focused on developing multiphysics solver for electrochemical gas evolution on OpenFOAM.
A workshop on innovation research in the aluminum industry was organized at Alcoa, Mosjøen, December 5th. Alcoa is one of the SFI Metal Production industry partners. A delegation from NTNU and SINTEF visited Alcoa to discuss progress in ongoing research.
Visitors from Trondheim (NTNU and SINTEF) were representatives from the SFI management and researchers from the project HighEFF.
Project managers presented recent results, and future plans were discussed in groups with participants from both organizations.
Alcoa was a great host for the delegation from Trondheim. The seminar program also included a tour on the smelter site, highly appreciated by participants visiting Alcoa for the first time. We are looking forward to continuing the collaboration and wish to thank Alcoa for receiving us and making the seminar a success.
Shokouh Haghdani started as a Postdoctor at the Centre in December 2019. Shokouh’s preliminary project title is “Influence of structure on slag viscosity”, and Professor Kristian Etienne Einarsrud is her supervisor.
Shokouh got her PhD from the chemistry department at NTNU.
The project aims at developing thermodynamic viscosity models for slag systems. The models will be linked to the structure of slags using Raman spectroscopy that characterizes internal structures experimentally. In addition, a rotational viscometer will be employed for measuring viscosity (when applicable) to validate viscosity models. We would like to perform these steps for three industrial systems, namely Mn-, Ti- and Si-related slags.
Welcome to SFI Metal Production!
Monday 25. November 2019 SFI Metal Production centre organised a half-day workshop with focus on filtration.
Pyrotek's Director of Technology and responsible for Bonded Particle Cartridge Filter came all the way from US to speak and attend. The topics where in addition to cartridge filters, priming, and recent research and development. The workshop was attended by 5 Hydro representatives, 2 from Aloca and 2 from Pyrotek in addition to the NTNU and SINTEF representatives.
The SFI Scientific committee (SC) members were invited to the autumn meeting, and a separate SC meeting was organized the following day.
From left: SC members Jean-Pierre Birat and Margaret Hyland, SFI management Aud Værnes and Gabriella Tranell. SC member Markus Reuter had left when the picture was taken and In-Ho Jung participated by skype.
The SFI Metal Production autumn meeting was held in Trondheim November 5-6.
Perfluorcarbon (PFC) gases are extremely potent greenhouse gases (GHGs) and industrial emissions contribute to global warming. Read more about what PFCs are and how they are formed, how PFC emissions have significantly lowered over the last 30 years and how continuous online monitoring can help limit and control emissions further in this blog post at #SINTEFblog. Written by Thor Anders Aarhaug, Senior Researcher at SINTEF and SFI Metal Production associate.
Haley Hoover started as a PhD candidate at the centre in August 2019. Haley's preliminary project title is “Resitivity of Partially Transformed Materials in the FeSi/Si Process”, and Professor Merete Tangstad is her supervisor.
Wednesday August 21
Place: H1, Main Building, NTNU Gløshaugen
Prescribed subject: “Production and properties of Mn sinter in the Mn-process”
Place: H1, Main Building, NTNU Gløshaugen
- Professor Haijuan Wang, University of Science and Technology Beijing, China
- Senior Lecturer Dr. Robert Cromarty, University of Pretoria, Materials Science and Metallurgical Engineering, South Africa
- Professor Gabriella Tranell (administrator of the committee), Department of Materials Science and Engineering, NTNU
© Hydro Aluminium AS
Aluminium activities coordination meeting and visit to Karmøy Technology Pilot, 24 - 25 June
The SFI leader group represented by Aud Wærnes, Arne Petter Ratvik, Anne Kvithyld, Gabriella Tranell and Leiv Kolbeinsen met with representatives for the aluminium industry, Nancy Holt, and Trond Furu (Hydro), Ketil Rye and Harry Salvesen (Alcoa) and Anders Sørhuus (GE) to discuss results obtained, as well as activities and priorities for the aluminium industry during the second half of SFI Metal Production. The visit was completed by an extensive visit to the electrolysis pilot plant, as well as the foundry.
Thank you to Nancy for organizing the visit and the generous reception and tour by Hydro Karmøy.
The international Dross and Packaging Recycling Workshop was arranged May 15-16 in Trondheim as a part of SFI Metal Production’s activities. When announced this event, this workshop seemed to be pretty popular and we needed to minimise number of participants to around 40 in order to get a productive workshop. Except from SINTEF and NTNU twelve companies: Hydro, Alcoa, Novelis, Linde Gas, Norsk Metallgjenvinning, Gränges, Kavli, Metallco, Infinitum, Real Alloy, Constellium and Trimet Aluminum and two interest organisations: European Aluminium and Aluminium Association participated in this workshop.
The goal for these two days was to review recent problems and developments in dross and aluminium packaging recycling to a better understanding where more research or technical effort is most needed.
The enthusiastic participants worked hard during these two days and carried out four workshop session together. The first on Recyclable aluminium including collection, the second on Remelting Technologies and the third on Dross, Saltcake and the fourth and last on Quality and use of recycled Aluminium & Dross.
Anne Kvithyld, in your opening talk you presented the goal for this workshop. Did you reach them? “Yes, I feel we succeeded very well in discussing problems, developments and constraints. I am humble to expert group knowledge and amazed by their engagement.”
The program shows a push against the future perspective in all the presentations and workshop sessions. Do you have something of special interest you want to mention in this connection? "Generally new legislation, old problems – with the need to test out several upcoming technologies”
The organiser at SINTEF Industry, Anne Kvithyld and Berit Fossum, did a tremendous work with this workshop and got a lot of positive feedback in the finishing questionnaire. Thanks to the participants and the organisers for making this workshop to a success!