金铜精矿中性催化加压浸出预处理工艺  

Pretreatment Process Technology of Neutral Catalytic Pressure Leaching in Gold and Copper Concentrates

作　　者：李滦宁[1] 梁宏伟[1] 赵淑杰[1] 刘娟丽[2] 陈博[1] 王岚[1] 崔玉果 于长江 

机构地区：[1]吉林大学化学学院,长春130026 [2]西北民族大学化工学院,兰州730030 [3]吉林集安利源黄金有限责任公司,吉林集安134211

出　　处：《吉林大学学报（地球科学版）》2011年第4期1186-1191,共6页Journal of Jilin University：Earth Science Edition

基　　金：吉林省科学技术厅项目(20000124);吉林省校企合作项目;集安市利源黄金有限责任公司项目

摘　　要：针对金铜精矿采用中性催化加压预处理工艺,经试验,在温度180℃、氧分压1.8 MPa、催化剂0.14 mol/L的基本条件下,Cu浸出率为99.4%,浸液中残留∑Fe质量浓度仅为3.52 g/L,对后续回收Cu的精炼工艺非常有利。氧化渣以氯化浸金工艺浸出Au、Ag,浸出率分别为98.2%、90.3%,有价元素回收率高,工艺简单,环境效益好。The pretreatment method based on catalytic pressure in neutral conditions was used for leaching gold and copper concentrates.The results suggested that 99.4% of Cu could be leached out from gold and copper concentrates when temperature was 180℃,partial pressure of oxygen was 1.8 MPa and amount of catalyst was 0.14 mol/L.The total of Fe was only 3.52 g/L in leachate,which was beneficial to recovery of Cu in the follow-up process.In the residue,98.2% of Au and 90.3% of Ag could be leached out by chloride leaching gold process.The pretreatment process was straightforward and the environmental benefits.

关 键 词：金铜精矿 中性催化加压浸出 预处理 

分 类 号：TF803.21[冶金工程—有色金属冶金]