摘要
在镍的电解冶炼过程中产生的废渣,其中含有钴、镍等有价值元素.采用硫酸溶解,并加入氯酸钠作氧化剂,对其进行氧化酸溶,达到溶解除铁的目的,然后用脂肪酸萃取除铜和N_(235)萃取分离钴、镍,制备试剂级氯化钴.钴的回收率可达97%以上.
There arc many valuable metals, such as Co and Ni etc. in the Wastewater and slime generated from electrolitic nichel. This technolog consists of two principal steps, namely, dissolution and solvent extraction. The Slimes is first dissolved in sulfuric acid in the present of NaC103 as the oxidizing agent. Fe2+ converts into Fe3+ and precipitates. After dissolution, Copper and Coball can be extracted respectively by using aliphatic acid and N235 as the extractant. The recovery ratios of cobalt are 97%,
出处
《环境污染与防治》
CAS
CSSCI
CSCD
北大核心
1995年第5期42-44,共3页
Environmental Pollution & Control
