METHOD OF INCREASING EXTRACTION OF PLATINOIDS FROM UNCONVENTIONAL PLATINUM-CONTAINING RAW MATERIAL Russian patent published in 2016 - IPC B03D1/02 

FIELD: mining.

SUBSTANCE: invention relates to mineral processing and can be used in mining industry for enrichment of non-traditional platinum ores. Method for concentration of ores containing platinum group metals, involves crushing and conditioning of material with collector, introduction of pulp foaming agent, extraction of metals by flotation in foam products, and mineral waste rock in tails. Milling is carried out in a medium of aminoacetic acid to obtain a size fraction of -0.074+0 mm. Further flotation of obtained size is performed with complex collector-amines of nitroparaffins with flow rate of 100 to 150 g/t of ore and butyl potassium xanthate from 200 to 250 g/t of ore, depressor-liquid glass from 200 to 300 g/t of ore, foaming agent - pine oil from 20 to 40 g/t of ore.

EFFECT: technical result is increased extraction of platinoids from unconventional ores.

1 cl, 5 dwg, 2 ex