电锌生产中锌焙砂浸出工艺研究  

Study on Leaching Process of Zinc Roasting-sand in Production of Electrolytic Zinc

作　　者：谯宁 秦念华 

机构地区：[1]西昌锌业有限责任公司试验室,四川西昌615013

出　　处：《湿法冶金》2001年第1期22-24,共3页Hydrometallurgy of China

摘　　要：对电锌生产锌焙砂浸出工艺进行了改进研究。将低酸浸出改为预中和后 ,较好地解决了原流程中有大量硅胶产出、液固分离困难、黄钾铁矾渣中锌质量分数较高的难题。采用改进后的工艺 ,锌回收率明显提高 ,经济效益显著。Leaching process of zinc roasting sand in production of electrolytic zinc has been improved.Some problems have been solved after converting low concentration acid leaching into pre neutralization,such as forming silica gel,difficult solid/liquid separation and high content zinc in jarosite.The recovery of zinc is increased obviously with better economic benefits.

关 键 词：低酸浸出 预中和 过滤 锌焙砂 炼锌 电解 

分 类 号：TF813[冶金工程—有色金属冶金]