硫化铜矿微生物浸出-溶剂萃取-结晶硫酸铜  

Preparation of Cupric Sulfate by Microbiological Leaching-Solvent Extraction-Crystallization from Copper Sulfide Ore

作　　者：熊英[1] 胡建平 林滨兰 柏全金 郑存江 

机构地区：[1]中国地质大学资源学院,湖北武汉430074 [2]陕西省矿业生物工程研究中心,陕西西安710054

出　　处：《湿法冶金》2002年第1期28-31,共4页Hydrometallurgy of China

摘　　要：对湖北某硫化铜矿进行了微生物浸出溶剂萃取浓缩结晶硫酸铜的试验研究。用含有氧化亚铁硫杆菌的硫酸溶液浸出 80 d,铜的浸出率为 85 .2 % ;选用高效萃取剂 Lix984对富含铜的溶液进行溶剂萃取 ,以稀硫酸反萃取将溶液纯化 ,之后再蒸发浓缩 ,冷却结晶 ,制得 Cu SO4 .5 H2 O质量分数为 96.4%的硫酸铜产品。该工艺简单 ,成本低 。Experiments on preparation of cupric sulfate from a copper sulfide ore by microbiological leaching solvent extraction crystallization have been carried.After the ore being leached for 80d with diluent sulfuric acid containing thiobacillus ferrooxidans ,leaching rate of copper is 85.2%,Cupric in solution is enriced by solvent extraction with Lix984 in indusitral kerosene,and by reextraction with diluent sulfuric acid.CuSO 4·5H 2O in which Cupric sulfate mass fraction is of 96.4% can be preparated by evaporating the concentrated solution.

关 键 词：硫化铜矿 微生物浸出 溶剂萃取 结晶 硫酸铜 

分 类 号：TF18[冶金工程—冶金物理化学]