Metrecycle: Recycling of metals using functionalized magnetic nanoparticles
| Reference number | |
| Coordinator | Sveriges Lantbruksuniversitet - Institutionen för molekylära vetenskaper |
| Funding from Vinnova | SEK 1 537 000 |
| Project duration | May 2018 - December 2021 |
| Status | Completed |
Purpose and goal
New know-how has been created within REE recycling in collaboration with industry partner SiKEMIA. Evaluation protocols were developed for different types of ANMs. Pilot plant has been built for scaled-up production of jointly developed optimized materials. We have gained in-depth insight into factors that control uptake and selectivity for adsorption of REE & LTM (Co, Ni) and identified adsorption mechanisms and most attractive types of functions. New perspectives have been opened up for applications of mineral-based nanomaterials in hydrometallurgy and water purification.
Expected results and effects
6 principal types of advanced adsorbent nanomaterials (ANMs) were synthesized and characterized. 6 types of ligands grafted on ANMs were evaluated for separation of REE and late transition metals (LTM) and the most efficient and selective identified. Feasibility of sustainable use of ANMs was proved. Scale-up procedure for ANMs was economical and environmentally efficient as confirmed using LCA and LCC analysis. Recommendation for the flow-sheet for separating REE and LTM was made. The toxicological in-vivo tests showed ANMs to have low toxicity to zebra-fish embryos and humans.
Planned approach and implementation
The project was conducted in 8 WP: collection and pre-treatment of REE-containing materials, production and functionalization of nanoadsorbents (ANMs), studies of uptake and release of REE and LTM, scaling of materials with better durability and demonstration, studies of ANMs health effects, live cycle analysis with focus on sustainability, information dissemination and publishing, project administration. Collaboration between partners worked very effectively and led to successful publishing, reporting at conferences and workshops as well as several know-how.