黄铜矿加硫焙烧提铜新工艺  

A New Technique to Make Copper Removing Iron from Chalcopyrite

作　　者：宋宁[1] 刘纯鹏[1] 

机构地区：[1]昆明理工大学材料与冶金工程学院,昆明650093

出　　处：《有色金属》2005年第2期84-87,共4页Nonferrous Metals

基　　金：云南省自然科学基金资助项目(96E029M)

摘　　要：在低温、惰性气体保护下,采用差热分析及X射线衍射分析方法研究黄铜矿加硫焙烧过程。结果表明,黄铜矿硫化焙烧转化为CuS和FeS2的最佳条件为:温度350～400℃;时间4h;粒度-74μm,矿∶硫=10∶1.11。转化产物可通过常规湿法冶金工艺生产金属铜或中间产品。The process of chalcopyrite sulfidation roasting is investigated by using of the thermal analytical method and the X-ray diffraction method at lower temperature and with Ar gas protection. The results indicate that the optimal condition for CuFeS_2 roasting into CuS and FeS_2 is 350～ 400℃ for temperature, retention time 4h, particle size of the feeding materials less than 74μm, and the ratio of ore to sulfur in the raw material 10∶1.11. The roasting product can be treated with typical hydrometallurgical technology for copper recovery.

关 键 词：黄铜矿 加硫 X射线衍射分析 提铜 惰性气体保护 焙烧过程 差热分析 最佳条件 FeS2 硫化焙烧 中间产品 工艺生产 湿法冶金 转化产物 CUS 金属铜 

分 类 号：TQ330.67[化学工程—橡胶工业] TD952.1[矿业工程—选矿]