LIGNOMIN

Lignin is the new reagent-based solution in mining

Project team: Ulrika Rova (project leader), July Ann Bazar, Paul Christakopoulos, Katerina Hruzova, Leonidas Matsakas

Partners: Boliden Mineral; Bottenvikens Bryggeri; ONar Sweden

Duration: 2023-2026

Funded by Vinnova’s Strategic Innovation Programme for Swedish mining and metal producing industry

LIGNOMIN aims 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. In LIGNOMIN we are exploring 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 for incorporation into a novel flotation reagent system.

The anticipated outcomes of LIGNOMIN include demonstrating the 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. We will assess the impact of LIGNOMIN in boosting metal recovery while concurrently mitigating the environmental footprint of the mining sector, thereby contributing to efforts to combat climate change. We will also develop new technology and business models that can promote an industrial use of the LIGNOMIN concept. Through these activities, LIGNOMIN aims to advance the mining industry towards a more sustainable and environmentally conscious future, driving innovation while addressing critical challenges in resource extraction and utilization.