Sustainable REcovVEry of phosphorous from mine tAiLings


Luleå tekniska universitet


Ulrika Rova



Purpose and goal

The overall aim of this pre-study is to develop and test the feasibility of novel flotation collectors that can optimize resource use and minimize the environmental impact of the Swedish mining industry. Especially, we will target sustainable recovery of apatite from mine tailings as a source for phosphorous fertilizers. Residual resources from the forest industry will be used to develop low-carbon footprint, biodegradable and non-toxic flotation reagents for the beneficiation of mine waste streams.

Expected results and effects

The potential of lignin-based flotation collectors for selective enrichment of apatite from mine waste has been demonstrated The lignin based flotation collector technology, including the biomass fractionation technology for their preparation, is currently at TRL 5. A full-scale process plan at TRL 7 will be develop by LTU and LKAB as a project delivery.

Planned approach and implementation

The project is carried out for 6 months and is led by Ulrika Rova from Luleå University of Technology. The project concept combines the expertise of LTU and LKAB, which at an early stage provides conditions to identify the future potential of the envisioned technology.