广东某硫化铜矿石工艺矿物学及分选工艺研究
Study on Process Mineralogy and Separation Process of a Copper Sulfide Ore in Guangdong
王星1
作者信息
摘要
为了提高广东某低品位硫化铜多金属矿中铜以及共伴生硫、铁的资源利用率,采用化学多元素分析、矿物自动分析仪等手段进行了系统的工艺矿物学研究.结果表明,矿石中Cu、S、Fe的含量分别为0.50%,27.68%,34.07%.黄铜矿为铜的主要赋存矿物,其他含铜矿物有铜蓝、辉铜矿等.针对铜硫分离困难的问题,提出采用半自磨—球磨—铜浮选—磁黄铁矿磁选—硫浮选的流程,可以获得铜精矿铜品位为16%,回收率为70%,磁选后磁黄铁矿精矿硫品位为30%,回收率为36%,硫精矿硫品位为40%,回收率为45%的结果,获得了较好的铜硫分离效果.
Abstract
In order to improve the resource utilization rate of copper and associated sulfur and iron in a low-grade copper sulfide polymetallic ore in Guangdong,a systematic process mineralogy study is carried out by means of chemical multi-element analysis and mineral automatic analyzer.The results show that the contents of Cu,S and Fe in the ore are 0.50%,27.68%and 34.07%,respectively.Chalcopyrite is the main occurrence mineral of copper,and other copper-bearing minerals include covellite,chalcocite,etc.Aiming at the problems of difficult separation of copper and sulfur,a process of semi-autogenous grinding-ball mill-ing-copper flotation-pyrrhotite magnetic separation-sulfur flotation is proposed.Indexesof copper concen-trate with copper grade of 16%and recovery of 70%,the sulfur grade of pyrrhotite concentrateafter magnetic separation is 30%,the recovery rate is 36%,and the sulfur grade of sulfur concentrate is 40%,the recovery rate is 45%can be obtained.Good separation effect of copper and sulfur is obtained.
关键词
低品位硫化铜矿石/工艺矿物学/铜蓝黄铜矿Key words
low grade copper sulfide ore/process mineralogy/covellite/chalcopyrite引用本文复制引用
出版年
2024
NETL
NSTL
万方数据