高砷多金属矿中金和银的浸出实验研究  

Experimental Study Leaching of Au and Ag from High Arsenic Poly-metallic Ore

作　　者：李小英[1] 彭建蓉[1] 白淑坤[2] 崔涛[1] 包崇军[1] 

机构地区：[1]昆明冶金研究院,昆明650031 [2]云南农业大学,昆明650106

出　　处：《贵金属》2014年第A01期37-41,共5页Precious Metals

摘　　要：云南某地高砷多金属矿含有价金属铅、锌及稀贵金属金、银和铟,常规回收方法环境污染严重,因此采用加压氧化酸浸预处理,锌铜进入酸浸液另行回收,浸出渣硫脲浸出金和银,在最佳条件下,金和银浸出率可从未预处理的11.29%和14.17%、分别提高到93.94%和96.85%,浸出速度也大大提高,能获得较好的经济效益。A high arsenic polymetallic ore in Yunnan have valuable and precious metals, lead, zinc, gold, silver and indium, The conventional recovery methods have serious environmental pollution, so the ore was pretreated by oxidizing acid pressure, and then to recovery zinc and copper from the acid leaching solution, gold and silver from the leaching residue leached by thiourea leaching. Under the optimal conditions, the leaching percentages of gold and silver was raise to 93.94% and 96.85% from 11.29% and 14.17% at no pretreatment respectively, the leaching speed is also greatly improved, it can obtain better economic benefits.

关 键 词：有色金属冶金 高砷多金属矿 金 银 加压 氧化酸浸 

分 类 号：TF831[冶金工程—有色金属冶金] TF832