摘要
锌冶炼酸浸渣先浮选再用硫脲富集获得粗银绵,粗银绵经化学法提纯后经过电解产出纯度达99.95%以上的成品银,全流程银回收率达到70%以上。还可同时回收金和铜,含锌液返回锌冶炼系统,且无三废产生。
Crude silver powder was obtained by flotation and thiourea enrichment from acid leaching slag of zinc smelting.Crude silver powder was purified by chemical method and electrolyzed to produce silver product with purity of 99.95% plus.The silver recovery rate is more than 70%.Gold and copper are recovered simultaneously and zinc is returned to zinc smelting system.There are no three wastes in the whole process.
出处
《有色金属（冶炼部分）》
CAS
北大核心
2013年第7期42-43,共2页
Nonferrous Metals（Extractive Metallurgy)
关键词
酸浸渣
锌
银
浮选
硫脲
提纯
电解
acid leaching slag
zinc
silver
flotation
thiourea
purification
electrolysis
