某复杂高砷多金属难选硫化矿石选矿试验研究  

Experimental study on the mineral processing of a complex high arsenic polymetallic refractory sulfide ore

作　　者：沈永宇 Shen Yongyu(Yantai Orient Metallurgical Design&Research Institute Co.,Ltd.)

机构地区：[1]烟台东方冶金设计研究院有限公司,264006

出　　处：《黄金》2020年第7期62-67,共6页Gold

摘　　要：某复杂高砷多金属难选硫化矿石中金属矿物分布不均匀,嵌布粒度较细,结构复杂,分选难度较大。针对该矿石性质,在可选性探索试验基础上,进行了优先选铅、再选锌工艺条件研究。结果表明:在最佳磨矿细度及药剂制度条件下,优先浮选闭路试验获得了较好试验指标,铅精矿铅、锌、银、铜品位分别为45.23%、4.65%、4012.00 g/t、7.62%,回收率分别为71.16%、3.71%、61.89%、62.80%;锌精矿锌、铅品位分别为48.32%、0.96%,回收率分别为80.01%、3.14%,金属矿物得到了有效分离与充分回收。The metallic minerals in a complex high arsenic polymetallic refractory sulfide ore are distributed unevenly,embedded in fine particles and structurally complex,making them difficult to separate.Based on the ore property and the exploratory tests on the metallurgy,the conditions of preferential lead flotation-zinc flotation process are studied.The results show that with optimal grinding fineness and agent regime,the closed circuit of preferential flotation obtained good test index.The grades of lead,zinc,silver,copper in lead concentrates are 45.23%,4.65%,4012.00 g/t and 7.62%respectively,and the recovery rates are 71.16%,3.71%,61.89%and 62.80%respectively;the grades of zinc and lead in zinc concentrates are 48.32%and 0.96%respectively,and the recovery rates are 80.01%and 3.14%respectively.The metallic minerals are effectively separated and fully recovered.

关 键 词：多金属矿 高砷 优先浮选 硫化矿 铅 锌 铜 

分 类 号：TD952[矿业工程—选矿]