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聚偏氟乙烯中空纤维膜器对钐传质性能的影响

Effect of Polyvinylidene Fluoride Hollow Fiber Membranes on Mass Transfer of Samarium

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【作者】 罗芳张凤君李德谦吴庸烈

【Author】 LUO Fang, ZHANG Feng Jun, LI De Qian, WU Yong Lie (Laboratory of Rare Earth Chemistry and Physics, Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China)

【机构】 中国科学院长春应用化学研究所稀土化学与物理开放实验室!吉林长春130022中国科学院长春应用化学研究所稀土化学与物理开放实验?

【摘要】 以P50 7 煤油 HCl Sm为实验体系 ,在两种聚偏氟乙烯中空纤维膜器中研究了溶胀性能、反萃酸度对基于水相的总传质系数及中空纤维膜孔径的影响 ,考察了料液酸度、萃取剂浓度、钐离子浓度与萃取速率的关系 ,获得了相应的反应级数。根据界面反应动力学 ,得到了速率常数值和动力学方程。

【Abstract】 The influence of swelling and stripping acidity on the mass transfer coefficient based on water phase and the inner diameters of membranes were studied with P507 kerosin HCl Sm as working system in the two different kinds of hollow fiber membranes. The effect of extractant concentration and H + concentration in aqueous phase and Sm 3+ concentration on extraction rate were discussed and corresponding reaction series were obtained. According to the investigations on the interfacial kinetics, the reaction kinetics equation and reaction rate constant are obtained.

【基金】 国家重点基础研究发展规划项目! (G1 9980 61 30 2 );国家自然科学基金! ( 2 9771 0 2 8;2 980 1 0 0 4 )资助项目
  • 【文献出处】 中国稀土学报 ,JOURNAL OF THE CHINESE RARE EARTH SOCIETY , 编辑部邮箱 ,2000年03期
  • 【分类号】TQ02
  • 【被引频次】2
  • 【下载频次】64
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