摘要
对比研究了不同磷酸酯萃取剂P204、P507、P535的萃镓性能。研究表明,P204、P507只能在较低的硫酸浓度下萃镓,在硫酸浓度超过10g/L后萃取率显著降低。而P535可实现高酸度(>20g/L)硫酸体系直接萃取镓,并能实现Ga与Zn、Cu、Ge的高效分离,分离系数β_(Ga/Zn)、β_(Ga/Cu)、β_(Ga/Ge)可分别达到4573、1663、651。P535有望运用于锌湿法冶炼渣高酸浸出液萃取回收镓。
Extraction performance of gallium by P204,P507,and P535 in sulfuric acid system was compared.The results show that P204 and P507can only extract gallium with low H2SO4 concentration,and extraction rate of gallium significantly drops upon H2SO4 concentration exceeding 10g/L.P535 can achieve direct extraction of gallium from high acidity sulfuric acid system(20 g/L)and efficient separation of Ga from Zn,Cu,and Ge.Separation coefficient ofβGa/Zn,βGa/Cu andβGa/Ge by P535 is 4573,1663,and 651 respectively.P535is expected to be applied to extract gallium from high acid leaching lixivium of zinc hydrometallurgical slag.
作者
张魁芳
刘志强
曹洪杨
朱薇
高远
金明亚
ZHANG Kui-fang;LIU Zhi-qiang;CAO Hong-yang;ZHU Wei;GAO Yuan;JIN Ming-ya(Guangdong Province Research Institute of Rare Metals,Guangdong Province Key Laboratory of Rare Earth Development and Application,Guangzhou 510650,China)
出处
《有色金属(冶炼部分)》
CAS
北大核心
2017年第4期35-38,共4页
Nonferrous Metals(Extractive Metallurgy)
基金
国家自然科学青年基金资助项目(51404078)
国家科技支撑计划项目(2015BAB02B03)
广州市科学研究专项重点项目(201607020022)
关键词
磷酸酯萃取剂
硫酸体系
萃镓性能
对比研究
phosphate extraction agent
sulfuric acid system
gallium extraction performance
comparative study
