2-mercapto-benzoxazole derivatives as collectors for the selective flotation of metal ores

摘要

PCT No. PCT/IT92/00148 Sec. 371 Date Jul. 15, 1994 Sec. 102(e) Date Jul. 15, 1994 PCT Filed Nov. 24, 1992 PCT Pub. No. WO93/10903 PCT Pub. Date Jun. 10, 1993.A process for the selective flotation of at least one sulfide selected from the group of copper sulfide, silver sulfide, and activated zinc sulfide performed in the presence of 2-mercapto-benzoxazole derivatives.