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混合硫化矿经混合浮选得混合精矿,通过优先泡沫浮选使混合精矿中的 MoS_2与 Cu—Fe 的硫化物分离。对 Cu 的硫化物的抑制剂经改进后采用二硫化碳酸、三硫化碳酸及(或)它们的水溶盐类。例:用二次泡沫浮选对含26.3%Cu 及0.603%MoS_2的混合硫化精矿进行处理。添加 Na_2CS_3抑制剂,药量为6—10磅/吨精矿,产得精矿含 MoS_2为2.35—3.31%,产率69.1—78.7%,但如果不加这抑制剂,就不发生分离作用。用类似
The mixed sulphide ore is mixed and floated to obtain the mixed concentrate, and the sulphide of the MoS_2 and the Cu-Fe in the mixed concentrate is separated by the prior froth flotation. Inhibitors of Cu sulfide have been modified with carbosulfur disulfide, trisulfocarbonic acid and / or their water-soluble salts. Example: Secondary foam flotation is used to treat mixed sulfide concentrates containing 26.3% Cu and 0.603% MoS_2. Addition of Na_2CS_3 inhibitor at a dose of 6-10 lbs / t concentrate resulted in concentrates containing 2.35-3.31% MoS_2 with a yield of 69.1-78.7%, but without this inhibitor, separation did not occur. Use similar