新型抑制剂在某铅锌硫混合精矿浮选分离中的应用

采用新型抑制剂X33和L3对云南某铅锌硫混合精矿进行浮选分离试验研究。结果表明该抑制剂替代传统抑制剂，能很好地分离铅锌硫混合精矿，其药剂工艺环保，用量低。含铅17.35%、锌6.76%和铁31.04%的铅锌硫混合精矿经过浮选分离后，可得到含铅64.59%、铅回收率95.49%、含银326.8 g/t、银回收率83.29%、含锌4.64%的铅精矿和含锌51.56%、锌回收率64.09%、含铅3.55%的锌精矿，以及含硫43.4%、硫回收率78.67%的硫精矿。 

Application of a New Depressant in the Flotation Separation of a Lead-zinc-sulfur Bulk Concentrate

A new type of depressant X33 and L3 was used for flotation separation of a lead-zinc-sulfur bulk concentrate in Yunnan. The test results show that the depressant can replace the traditional depressants in separation method for separate the lead-zinc-sulfur bulk concentrate. Its chemical process is environmentally friendly and the dosage is low. A galena-sphalerite-pyrrhotite mixed concentrate in Yunnan contains 17.35% lead, 6.76% zinc and 31.04% iron, when is separated by flotation, lead concentrate containing 64.59% lead, and lead recovery of 95.49%, 326.8 g/t silver, and silver recovery of 83.29% and 4.64% zinc; zinc concentrate containing 51.56% zinc, 3.55% lead, and zinc recovery of 64.09% was obtained; 43.4% sulfur and 78.67% sulfur recovery in the pyrite concentrate.