用离子液体从废液晶显示器硫酸浸出液中萃取铟

摘要

研究了以离子液体为溶剂 ,用二(2-乙基己基磷酸)(P204)萃取废液晶显示器硫酸浸出液中的In(Ⅲ) ,考察了P204体积分数、水相酸度、相比、萃取时间对铟萃取率的影响.结果表明 ,在P204体积分数15% 、水相pH=1 .1、相比Vo/Va=1/5、萃取时间4 min条件下 ,铟萃取率达95 .8% .%Ionic liquids(ILs) was used as solvent ,2-(2-ethyl hexyl)phosphate(P204) was used to extract In (Ⅲ ) from acidic leaching solution of waste liquid crystal displays .The effects of P204 volume fraction in organic phase ,water phase acidity ,Vo/Va and extraction time on extraction of In(Ⅲ) were examined .The results show that under the conditions of P204 volume fraction of 15% , water phase pH of 1 .1 ,Vo/Va of 1/5 ,extraction time of 4 min ,the extraction rate of In(Ⅲ ) reachs 95 .8% .