Company cases about Dry Powder Electromagnetic Separator Improves Grade and Recovery Rate of Lithium Mica Concentrate
Dry Powder Electromagnetic Separator Improves Grade and Recovery Rate of Lithium Mica Concentrate
2026-06-13
Luleå University of Technology (LTU) in Sweden released the latest pilot test results of lithium mica ore processing in June 2026. Local lithium mica raw ore features low grade and high iron impurity content, with a traditional magnetic separation recovery rate of only 65%, failing to meet large-scale commercial development requirements.
The pilot line adopts an upgraded dry separation process. After dry grinding of raw ore, a 16000GS high-strength dry powder electromagnetic separator is used to remove massive iron impurities and ferromagnetic gangue minerals. Combined with magnetic-flotation coupling technology, it accurately separates lithium mica from ordinary gangue materials without damaging effective minerals.
After optimization, the Li₂O grade of lithium mica concentrate is increased from 2.8% to 4.2%, and the iron impurity content is reduced to 0.12%. The mineral recovery rate is significantly improved to 89%, while the flotation reagent dosage is reduced by 40% and industrial wastewater discharge is greatly cut. This low-consumption and high-efficiency separation scheme provides a new technical path for the development of low-grade lithium mica mines in Northern Europe.