摘要
针对云南某细粒浸染铜锌矿开展了选矿工艺研究。该铜锌矿中的硫化矿物具有复杂的交代嵌生关系,本研究采用优先浮铜—铜粗精矿再磨—铜尾矿活化浮选锌的工艺流程,提高了细粒浸染交代嵌生的黄铜矿、闪锌矿的单体解离度。同时,使用BP+乙黄药做铜矿物的组合捕收剂,Na_2S+Na_2SO_3+ZnSO_4做锌矿物组合抑制剂,实现了细粒浸染铜锌矿的有效分离。在原矿含铜0.82%、锌2.21%的情况下,获得了铜精矿含Cu 20.92%、Zn 2.89%,铜精矿中Cu回收率87.41%,锌精矿含Cu 1.24%、Zn 43.34%,锌精矿中Zn回收率89.15%的指标。
The mineral processing technology investigation is conducted on one fine-grained disseminated copper-zinc ore in Yunnan. The sulphide minerals have a complex metasomatic embedded relationship in this copper-zinc ore. The mineral processing flow that copper differential flotation, regrinding of copper rough concentrate, activation flotation of zinc from copper tailings is adopted, which improved the single separation degree of fine-grained disseminated and embedded copper pyrites and sphalerite. Meanwhile, by using BP＋ ethyl xanthogenate as the collecting agent of copper ore, Na2S＋Na2SO3＋ZnSO4 as the combined depressants of zinc ore, therefore the effective separation between fine-grained disseminated copper-zinc ore was achieved. Under the conditions that in the raw ore, copper content is 0.82%, zinc content is 2.21%, we can get the indexes that copper concentrate with Cu 20.92%, Zn 2.89%, the recovery rate of Cu is 87.41% in the copper concentrate, the Cu content is 1.24% in zinc concentrate, The Zn recovery rate is 89.15% in the zinc concentrate.
出处
《云南冶金》
2016年第5期22-29,共8页
Yunnan Metallurgy
关键词
铜锌分离
浮选
铜捕收剂
组合抑制剂
separation of copper and zinc
flotation
copper collecting agent
combined depressants
