矿产保护与利用Issue(6)：31-36,6.DOI:10.13779/j.cnki.issn1001-0076.2016.06.007
高镍铜阳极泥脱铜渣中金银的碘化浸出行为
Leaching Behavior of Gold and Silver in I-/I2 System from Coppre Anode Slime w tih High Nickel Content
常占河 1路殿坤 2谢锋 2畅永锋 2王伟2
作者信息
- 1. 东北大学科技产业集团沈阳东创贵金属材料有限公司，辽宁 沈阳110015
- 2. 东北大学 冶金学院，辽宁沈阳110819
- 折叠
摘要
Abstract
The leaching behavior of gold and silver from decopperization residue of copper anode slime with high nickel content in I -/I2 system was investigated in this study .The effects of I -/I2 mole ratio,iodine concentration and leaching time on the leaching rate of gold and silver were ex -amined.The results showed that the optimal condition under room temperature was as follows :mole ratio of I-and I 2 was 2:1, initial I 2 concentration was 17.5 g/L, and leaching duration was 1 h. Under this condition , the recovery rate of gold and silver were 96 .62%and 0 .39%, respectively . Then AgCu3Cu(AsO4)3 in raw material transforms into AgI in I -/I2 system.In the second leaching step, the total recovery rate of gold reached up to 98.71%.Experimental results showed that the selective leaching of gold could be accomplished through two stage leaching with I -/I2 system. Meanwhile , majority of silver in raw material still existed in leaching residue , which was convenient for separation of gold and silver .关键词
高镍铜阳极泥/金/银/碘化浸出Key words
copper anode slime/gold/silver/iodide leaching分类
矿业与冶金引用本文复制引用
常占河,路殿坤,谢锋,畅永锋,王伟..高镍铜阳极泥脱铜渣中金银的碘化浸出行为[J].矿产保护与利用,2016,(6):31-36,6.
