高钴锌电解液制取羟基氧化钴的研究  

CoO(OH) Preparation from Zinc Sulfate Solution Bearing High Cobalt

作　　者：李倩[1] 张宝[2] 夏晓梅[2] 李林波[1] 申文前 

机构地区：[1]西安建筑科技大学冶金工程学院,西安710055 [2]中南大学冶金与环境学院,长沙410083 [3]武警工程大学理学院,西安710086

出　　处：《有色金属（冶炼部分）》2014年第10期1-4,10,共5页Nonferrous Metals（Extractive Metallurgy)

基　　金：国家自然科学基金资助项目(51072233)

摘　　要：采用Na_2S_2O_8氧化处理高钴锌电解液。结果表明,加入理论量4倍的Na_2S_2O_8后,在pH 4.0、80℃反应120 min,钴的沉淀率为99.8%,沉钴物的主要物相为CoO(OH)(羟基氧化钴)。沉钴后液除镉、镍后可用于后续电解锌。Oxidization treatment of zinc sulfate solution bearing high cobalt by sodium persufate was studied. The results show that cobalt precipitation rate is 99.8% under the optimum conditions including dosage of Na2S208 of four times of theory value, pH value of 4.0, temperature of 80 ℃, and reacting time of 120 rain. The main phase of precipitation is CoO（OH）. The residual solution can be used for zinc electrolysis after removal of cadmium and nickel.

关 键 词：Na2S2O8 氧化 羟基氧化钴 

分 类 号：TF803.24[冶金工程—有色金属冶金]