高砷铅阳极泥选择性脱砷实验研究  

Experimental Study on Selective Arsenic Removal from High Arsenic Bearing Lead Anode Slime

作　　者：覃小龙 谢兆凤 刘万里 谭霖 

机构地区：[1]郴州市金贵银业股份有限公司,湖南郴州423038

出　　处：《有色金属（冶炼部分）》2014年第5期5-7,11,共4页Nonferrous Metals（Extractive Metallurgy)

基　　金：国家科技支撑计划项目(2012BAE06B06)

摘　　要：对高砷铅阳极泥进行碱性体系通人空气脱砷试验，详细考察了碱用量、空气流量、脱除温度和反应时间对脱砷率的影响。结果表明，在氢氧化钠用量为1．4倍理论量、空气流量100L／h、液固比5：1、温度80℃、阳极泥粒度0．15～0．178mm、脱除时间2h的最佳条件下，脱砷率达到95％以上。Selective arsenic removal from high arsenic bearing lead anode slime was conducted in alkaline system by feeding air. The effects of dosage of caustic soda, air flow, leaching temperature and time on ar- senic removing rate were investigated. The results show that the arsenic removing rate is 95% above under the optimum conditions including dosage of caustic soda of 1.4 times of theoretical value, air flow of 100 L/h, ratio of liquid to solid of 5 ： 1, leaching temperature of 80 ℃, size of anode slime of 0.15-0. 178mm, and leaching duration of 2 h.

关 键 词：高砷铅阳极泥 选择性 脱砷 

分 类 号：TF812[冶金工程—有色金属冶金]