对２乙基己基膦酸单（２乙基己基）酯（Ｐ５０７）兰１１３Ａ煤油乳状液膜法提取铟的主要工艺条件进行了研究。结果表明，铟浓度为０２０００ｇ／Ｌ，提取率达９９％以上，内相富集较高浓度的铟 The main technological conditions for the extraction of indium from 2-ethylhexylphosphonic acid mono-2-ethylhexyl ester (P507) -lambda 113A-kerosene emulsion liquid membrane were studied. The results show that the indium concentration of 02000g / L, the extraction rate of 99% or more, the internal phase enrichment of higher concentrations of indium