Lignin is the new reagent-based solution in mining
| Reference number | |
| Coordinator | Luleå tekniska universitet - Luleå tekniska universitet Inst f samhällsbygg & naturresurser |
| Funding from Vinnova | SEK 2 678 733 |
| Project duration | March 2023 - February 2026 |
| Status | Ongoing |
| Venture | The strategic innovation programme for Swedish mining and metal producing industry - SIP Swedish Mining Innovation |
| Call | Secure sustainable metal and mineral supply |
Purpose and goal
The objective of LIGNOMIN is to provide a holistic concept for a low-carbon-footprint mining industry by using renewable feedstocks for production of novel biobased froth flotation reagents that can offer higher revenue by an increased recovery of valuable base metals. More specific, LIGNOMIN, will explore the impact of using lignin from abundant lignocellulosic sources, i.e. technical lignins from Nordic biorefineries, as well as residues from the agricultural and food industry, for production of lignin particles to be used in a new flotation reagent system.
Expected effects and result
Demonstrated industrial feasibility of the novel lignin reagent-based solution, based on partial or total replacement of fossil-based xanthate collectors with biobased, biodegradable, and nontoxic alternatives. Demonstrated impact of LIGNOMIN as a strategy to increase metal recovery and at the same time reduce the environmental impact of the mining sector and enhance its potential to mitigate climate change. New technology and business models that can promote an industrial use of the LIGNOMIN concept.
Planned approach and implementation
The project is carried out for 36 months and is led by Ulrika Rova from Luleå University of Technology. The project includes partners with competence throughout the value chain; Luleå University of Technology, Boliden Mineral AB, Bottenvikens Bryggeri AB and ONar AB.