湿法冶金Issue(4)：321-323,3.DOI:10.13355/j.cnki.sfyj.2015.04.15
从金冶炼渣中综合回收铁、金、银
Comprehensive Recovery of Iron,Gold and Silver Form Roasting Gold Smelting Tailings
摘要
Abstract
The comprehensive recovery of iron ,gold and silver from a roasting cyanide tailing was studied .The effects of sulfuric acid concentration ,leaching temperature and leaching time on leaching rate of iron were examined .The results indicate that the leaching rate of iron is 90 .85% under the conditions of sulfuric acid concentration of 10 .8 mol/L ,leaching temperature of 90 ℃ ,leaching time of 2 h and liquid to solid ratio of 2 .5 .The acid leaching residue was leached again using cyanide ,and the recoveries of Au and Ag are 72 .8% and 62 .4% ,respectively under the conditions of liquid to solid ratio of 3∶1 ,leaching time of 48 h ,system pH of about 11 and NaCN usage of 10 kg/t .关键词
金冶炼渣/焙烧/硫酸/浸出/铁/金/银Key words
smelting tailing/roasting/sulfuric acid/leaching/iron/gold/silver分类
矿业与冶金引用本文复制引用
王威,张博,曹耀华,柳林,刘红召,高照国,杨华玲..从金冶炼渣中综合回收铁、金、银[J].湿法冶金,2015,(4):321-323,3.基金项目
国土资源部地质调查项目（12120114021901）；中科院长春应用化学研究所开放课题（RERU2014016）；青年科学基金资助项目（21401110）。 （）
