采用乳状液膜技术对含铀溶液中的铀进行回收处理，研究了制乳原料的最佳体积比，制乳时的搅拌速度、温度等因素，及回收处理铀时的温度、pH值、铀初始质量浓度、提取时间等因素对乳状液膜技术提取回收含铀废液的影响；探讨了乳状液膜提取回收铀过程中铀的迁移机理；通过热力学对乳状液膜技术提取回收铀的液膜传输过程进行了分析。结果表明，当制乳原料中P204和液体石蜡的体积分数为0.1和0.05，Span80、磺化煤油与P204的体积比分别为0.06、0.79，搅拌速度为2000 r/min ，内水相盐酸的浓度为4 mol/L 时，可制得稳定的油包水型乳状液膜。在常温常压、pH 值2.5、铀初始质量浓度小于100 mg/L、含铀废液与乳状液膜的体积比为5时，用乳状液膜对铀废液提取0.5 h ，铀的回收率可达到99％以上，Gibbs自由能ΔG＜0，说明外水相的铀可自发地向内水相富集。%The recovery and treatment of uranium from uranium-containing solution using liquid membrane emulsion (LME) technology were studied in this paper ,which contained the best volume ratio of membrane materials ,stirring speed during emulsion process ,the conditions of extracting ,such as temperature ,pH ,initial concentration of uranium .Moreover ,the mechanism for extracting uranium was also discussed .The best experimental conditions of emulsifying were acquired .The volume fractions of P204 and liquid paraffin are 0.1 and 0.05 , the volume ratios of Span80 and sulphonated kerosene to P204 are 0.06 and 0.79 respectively ,stirring speed is controled in 2 000 r/min , and the concentration of inner phase is 4 mol/L .T he recovery rate of uranium is up to 99% through the LME extracted uranium for 0.5 h at pH 2.5 and room temperature when the initial concentration is less than 400 mg/L and the volume ratio is 5 between the uranium-containing wastewater and LME . The calculation results of Gibbs free energy show that the reaction process is spontaneous .
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