COLLECTOR FOR SELECTIVE FLOTATION OF SULFIDE ORE AND A METHOD OF SULFIDE ORE SELECTIVE FLOTATION

摘要

FIELD: flotation of ores. SUBSTANCE: product: derivatives of 2-mercaptobenzoxazole of the formula: where one of R and R₁ means alkyl group with 1-9 carbon atoms and other - hydrogen; R₂ and R₃ means hydrogen; M means H, Na, K, Li, Cr or NH₄ and used for selective flotation of sulfide ore, for separation of mineral salts containing copper, zinc and silver, and separation of preliminary activated zinc sulfide minerals from other sulfides. EFFECT: improved method of flotation. 9 cl, 10 tbl