用LIX622从含砷铜/锌混合精矿加压浸出液中萃取铜  

Cu Recovery from Pressure Leaching Liquor of Arsenic Containing Cu/Zn Bulk Concentrate Containing Arsenic by Solvent Extraction with LIX 622

作　　者：王春[1] 蒋开喜[1] 王海北[1] 刘大星[1] 刘三平[1] 张邦胜[1] 王玉芳[1] 

机构地区：[1]北京矿冶研究总院,北京100044

出　　处：《有色金属》2004年第41期70-73,共4页Nonferrous Metals

基　　金：国家自然科学基金资助项目 (5 0 2 3 40 10 )

摘　　要：研究采用LIX62 2从含砷铜 /锌混合精矿加压浸出液中萃取铜的工艺过程。含Cu 10～ 15g/L ,pH =1 0～ 1 2的加压浸出料液 ,采用 2 2 5 8%LIX62 2 煤油体系 ,经过 3级萃取、3级洗涤和 3级反萃 ,萃余液中含铜可降到 0 3～ 0 6g/L ,平均铜萃取率达 95 40 % ,反萃液满足电积工艺要求。The process for copper extraction from pressure leaching solution of Cu/Zn bulk concentrate containing arsenic by solvent extraction with LIX 622 is investigate d. The feed solution for solvent extraction is the pressure leaching solution, c ontaining Cu 10～15g/L,H 2SO 4 10～15g/L. LIX622-kerosene with volume cont ent of 2 2.58% is adopted as the extractant. The system of 22.58%LIX622-kerosene is a dopt ed as medium of the solvent extraction. The copper content in the raffinate is r educed to 0.3～0.6g/L by 3-stages extraction, 3-stages washing and 3-stages strip ping. The mean extraction rate is up to 95.40%. The pregnant solution of copp er is consonant with the requirements of electrowinning process.

关 键 词：加压浸出 电积 萃取率 料液 精矿 洗涤 工艺过程 混合 反萃 出料 

分 类 号：TG146.23[一般工业技术—材料科学与工程] TF111[金属学及工艺—金属材料]