龚福忠,赖洁,白永庆,周立亚,廖孙启

• 1:广西大学化学化工学院
• 2:广西防城港市质量技术监督局

摘要(Abstract)：

采用中空纤维支撑乳化液膜非分散提取工艺,对所构建的乳化液膜体系OP-4/流动载体/液体石蜡/煤油/盐酸进行In(Ⅲ)的提取研究,考察了流动载体、乳化剂OP-4浓度、内相盐酸浓度、料液/乳液流速比等因素对提取结果的影响,计算了膜的渗透通量和渗透系数。结果表明:在所考察的三种流动载体P204[二(2-乙基己基)磷酸]、P507[二(2-乙基己基-单-乙基己基)磷酸]、TBP(磷酸三丁酯)中,P204对In(Ⅲ)的提取效果最好;随着乳化剂OP-4浓度增大,提取率降低;内相盐酸浓度为2 mol·L-1时提取率最高,达到99.6%;料液/乳液流速比越大,提取率越低;膜的渗透通量和渗透系数随着料液/乳液流速比的增大而增大。在含杂质Fe(Ⅲ)、Zn(Ⅱ)、Cu(Ⅱ)的料液中,各离子提取率大小顺序为In(Ⅲ)(81.5%)>Fe(Ⅲ)(71.9%)>Zn(Ⅱ)(25.3%)>Cu(Ⅱ)(3.4%),表明Fe(Ⅲ)对In(Ⅲ)的提取有较大影响。

关键词(KeyWords)： 中空纤维支撑乳化液膜;非分散提取;铟;渗透通量;渗透系数

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(20966001)

作者(Author): 龚福忠,赖洁,白永庆,周立亚,廖孙启

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