| 膜接触器中乳化液膜脱除Ni2+的研究 |
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| 引用本文： | 龚彦文,程雪妮,张宏勋.膜接触器中乳化液膜脱除Ni2+的研究[J].现代化工,2011,31(Z1). |
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| 作者姓名： | 龚彦文 程雪妮 张宏勋 |
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| 作者单位： | 河南工业大学化学化工学院,河南郑州,450001 |
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| 摘 要： | 研究了以D2EHPA/煤油/HC1形成的微乳液体系在中空纤维膜接触器中萃取NiCl2水溶液中Ni2的过程,考察了D2EHPA和Ni2+浓度、水溶液酸度、两相流速对溶液中Ni2+的萃取率和传质性能的影响.结果表明,用D2EHPA/煤油/HCl形成的微乳液体系能有效萃取NiCl2水溶液中的微量Ni2+,增大微乳液中载体D2EHPA浓度和料液pH都能提高Ni2的萃取率和过程的总质系数,增加料液流速能显著提高Ni2+的萃取率和过程的总质系数,表明过程的传质阻力主要在水溶液相.
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| 关 键 词： | 液膜 萃取 镍离子 膜接触器 中空纤维膜 |
Study on emulsion liquid membrane extraction of zinc in a membrane contactor |
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| GONG Yan-wen,CHENG Xue-ni,ZHANG Hong-xun.Study on emulsion liquid membrane extraction of zinc in a membrane contactor[J].Modern Chemical Industry,2011,31(Z1). |
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| Authors: | GONG Yan-wen CHENG Xue-ni ZHANG Hong-xun |
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| Affiliation: | GONG Yan-wen,CHENG Xue-ni,ZHANG Hong-xun(School of Chemistry and Chemical Engineering,Henan University of Technology,Zhengzhou 450001,China) |
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| Abstract: | The extraction process of Ni2+ removal from NiCl2 aqueous by microemulsion system D2EHPA/kerosene/HCl in hollow fiber contactor is studied.The influences of Ni2+ removal and overall mas transfer coefficient by D2EHPA and Ni2+ concentration,pH,flow rate are investigated.The results show the feasibility of the removal zinc from dilute aqueous solutions using this contactor based on microemulsion system D2EHPA/kerosene/HCl.The fractional removal of zinc and mas transfer coefficient increases with increasing th... |
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| Keywords: | liquid membrane extraction Ni2 membrane contactor hollow fiber membrane |
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