Flotation extraction of tin from tailings of sulfide-tin ore dressing using thermomorphic polymer

The possibility of using a thermomorphic polymer with phosphine group as collecting reagent for the selective concentration tin during flotation enrichment sulfide-tin tails was first investigated in work. A detailed description experimental scheme ore tailings and mode are given. main mineral is cassiterite, highly brittle inclined to sludging, which leads large losses tails; granulometric composition initial Solnechnyi mining processing plant has showed that 50% sample represented by size grade –0.04 mm. output slimy product –20 μm 20% content 0.46% (according chemical analysis). This one sources (up 33.5%) process requires additional technological solutions. It been shown use +20 class (TMPF) ores allows not only reduce loss thin classes, but also significantly increase rate cassiterite parameters when beneficiating mature tin-sulfide processing. TMPF results obtaining rough concentrate I 0.55% Sn extracting 49% operation. Rough II 0.38% 42% recovery obtained reextraction TMPF. total combined amounted 90.71% Subsequent purification gravity on table concentrator will make it possible obtain concentrates richer required their further Further research be aimed at developing scientifically based solutions improve quality from sludge –0.02 microns new compositions. study implemented expense Russian Science Foundation grant (project No. 17-17-01292).