有色金属科学与工程Issue(5)：13-17,5.DOI:10.13264/j.cnki.ysjskx.2014.05.002
铜冶炼过程中硫化砷渣综合利用技术
Comprehensive utilization technology of arsenic sulphide slag in copper smelting process
摘要
Abstract
The treatment processes of arsenic sulphide slag produced in copper smelting are reviewed and a new developed technique of acidic oxidization pressure leaching is further introduced in this paper. After the pressure leaching, the extraction of copper, arsenic and rhenium can be all achieved as more than 95 % from the sulphide slag, of which sulphidic sulfur is oxidized into elemental sulfur and kept in the leaching residue. The leaching solution can be treated by sulfur dioxide reduction and further cooling to produce high-quality As2O3. Ammonium perrhenate can be produced through solvent extraction from the arsenic-removed solution and afterwards copper sulfate can be produced by evaporation crystallization from the raffinate. Thus , the valuables of copper, rhenium, sulfur as well as arsenic are all recovered comprehensively.关键词
硫化砷渣/加压浸出/砷/铜/硫/铼/综合回收Key words
arsenic sulphide slag/pressure leaching/arsenic/copper/sulfur/rhenium/comprehensive recovery分类
矿业与冶金引用本文复制引用
蒋开喜,王海北,王玉芳,张邦胜,刘三平..铜冶炼过程中硫化砷渣综合利用技术[J].有色金属科学与工程,2014,(5):13-17,5.基金项目
国家高技术研究发展计划（863计划）资助项目 （）
