用Cyanex272从硫酸盐体系中萃取除铝  

Solvent Extraction of Aluminum From Sulfate System Using Cyanex272

作　　者：李伟鑫 张荣荣 刘勇奇 巩勤学 LI Weixin;ZHANG Rongrong;LIU Yongqi;GONG Qinxue(Hu’nan Brunp Recycling Technology Co.,Ltd.,Ningxiang 410600,China;Hu’nan Bangpu Automobile Cycle Co.,Ltd.,Ningxiang 410600,China)

机构地区：[1]湖南邦普循环科技有限公司,湖南宁乡410600 [2]湖南邦普汽车循环有限公司,湖南宁乡410600

出　　处：《湿法冶金》2021年第2期159-162,共4页Hydrometallurgy of China

基　　金：国家重点研发计划项目(2018YFC1901801,2018YFC1901803);宁乡市科技重大专项(NXKJ-ZDZX-(201807));宁乡市科技计划项目(NXKJ-JCKY-(201805))。

摘　　要：研究了用酸性膦类萃取剂Cyanex272从硫酸镍钴锰溶液中萃取分离铝,考察了体系pH、萃取剂浓度、萃取剂皂化率和相比对萃取的影响。结果表明:对于Al^(3+)质量浓度2~3 g/L、主金属离子质量浓度70 g/L左右、且不含铁、锌、钙等杂质的原液,用皂化率为40%的25%Cyanex272+75%磺化煤油有机相,在萃取时间4 min、V_(o)/V_(a)=1/1条件下进行萃取,铝的单级萃取率为72%,5级萃取率为75%,去除效果较好,且主金属离子损失率较低。Solvent extraction of aluminum from nickel-cobalt manganese sulfate solution using acidic phosphine Cyanex272 as extractant was investigated.The effects of optimum system pH,extraction agent concentration,saponification rate and phase ratio on extraction of aluminum were examined.The results show that under the conditions of Al^(3+)mass concentration of 2~3 g/L,main metal ion mass concentration of about 70 g/L,and no impurities such as iron,zinc and calcium,using organic phase of 25%Cyanex272+75%sulfonated kerosene with saponification rate of 40%to extracting aluminum,extraction time of 4 min,V_(o)/V_(a)=1/1,the single-stage extraction rate of aluminum is 72%,and the fifth-stage extraction rate is 75%.The removal effect of aluminum is good,and the loss rate of main metal ions is lower.

关 键 词：CYANEX272 硫酸盐 铝 萃取 去除 

分 类 号：TF804.2[冶金工程—有色金属冶金] TF821