【摘要】 研究了以１－苯基－３－甲基－４－苯甲酰基吡唑酮－５（ＰＭＢＰ）为流动载体的乳状液膜（ＥＬＭ）法提取钪，确定最佳液膜体系组成为０．４％ＰＭＢＰ－３％Ｓｐａｎ８０－５％液体石蜡－煤油－３ｍｏｌ／ＬＨＣｌ，Ｒｏｉ＝１：１（油内比）．Ｒｗｅ（水乳比）可达２０：１．用该体系对钪与混合稀土进行分离，钪的回收率可达９５．５％，分离系数β（ＳＣ／ＲＥ）＝３２．０。更多还原

【Abstract】 Scandium（Ⅲ）was extracted by the emulsion liquid membrane （ELM）method us-ing 4-benzoyl-3-methyl-1-phenyl-2-pyrazolin-5-on as a carrier. The extraction rate of Sc（Ⅲ）was more than 95.5%and the separation factor for Sc（Ⅲ）and mixed rare earths β_SC/RE was32.0. The optimum conditions for the extraction as follows:pH=1.7～3.8 for feed liquid,PMBP 0.4%, surfactant Span80 3%, mixed solution of liquid paraffin and kerosene 5%,concentration of HCl in the internal phase 3mol/L, R_oi=1 : 1,R_we=20 : 1.更多还原