湿法冶金2016，Vol.35Issue(4)：311-315,5.DOI:10.13355/j.cnki.sfyj.2016.04.009
从青海德尔尼铁帽矿和高硫半氧化矿中综合回收铜金铁
Comprehensive Recovery of Copper,Gold and Iron From Gossan Ore and High-Sulfur Semi-Oxidized Ore in Derrni,Qinghai
陈淑萍 1王春1
作者信息
- 1. 紫金矿业集团股份有限公司低品位难处理黄金资源综合利用国家重点试验室，福建上杭 364200
- 折叠
摘要
Abstract
The gossan ore and high‐sulfur semi‐oxidized ore in Derrni ,Qinghai are very difficult to separate .By the processes of roasting -acid leaching -cyanide leaching to recovery Cu ,Au and Fe were studied .The results show that the roasting optimum conditions are m(gossan ore)∶ m(high‐sulfur semi‐oxidized ore) of 1∶1 ,grain size of 81 .5% for -75μm ,roasting temperature of 580 ℃ and roasting time of 2 h .The leaching rate of copper is 88 .26% under the optimum conditions of V (liquid)∶ m(solid) of 2∶1 ,initial acidity of 45 g/L ,acid leaching time of 1 h .Acidic leaching residue is leached using sodium cyanide solution ,gold leaching rate is 85 .43% under the initial sodium cyanide concentration of 2 g/L and leaching time of 24 h .T he leaching residue is iron concentrate product .T he results provide a new way for exploitation and utilization of similar complicated oxidize ore and high‐sulfur semi‐oxidized ore .关键词
铁帽矿/高硫半氧化矿/焙烧/酸浸/氰化/铜/金/回收Key words
gossan ore/high-sulfur semi-oxidized ore/roasting/acid leaching/cyanide/copper/gold/recovery分类
矿业与冶金引用本文复制引用
陈淑萍,王春..从青海德尔尼铁帽矿和高硫半氧化矿中综合回收铜金铁[J].湿法冶金,2016,35(4):311-315,5.
