萃取法分离钒铬的竞争机制

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孙颖^1,2，宁朋歌^2*，曹宏斌^1,2，刘文昭²

1. 天津大学化工学院，天津 300072 2. 中国科学院过程工程研究所环境技术与工程研究部绿色过程与工程重点实验室，北京市过程污染控制工程技术研究中心，北京 100190

收稿日期:2017-12-15修回日期:2018-07-08出版日期:2018-10-22发布日期:2018-10-12
通讯作者:宁朋歌

基金资助:国家自然科学基金;国家科技支撑计划

Competition mechanisms in separation of vanadium and chromium with extraction method

Ying SUN^1,2, Pengge NING^2*, Hongbin CAO^1,2, Wenzhao LIU²

1. School of Chemical Engineering & Technology, Tianjin University, Tianjin 300072, China
2. Beijing Engineering Research Center of Process Pollution Control, Key laboratory of Green Process and Engineering, Division of Environment Technology and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China

Received:2017-12-15Revised:2018-07-08Online:2018-10-22Published:2018-10-12

摘要/Abstract

摘要： 采用伯胺萃取法分离钒铬，研究了不同Cr/V浓度比的钒铬溶液在一定初始pH值范围内的分离效果. 结果表明，伯胺萃取法分离钒铬具有很好的选择性，V(V)和Cr(IV)的萃取率均随溶液初始pH值降低而上升，相同加酸比[H+/V(Cr)摩尔比]下，钒铬混合溶液中V(V)萃取率高于其单金属溶液的萃取率，Cr(IV)萃取率低于其单金属溶液的萃取率，且萃取率随时间延长先上升后下降.

引用本文

孙颖宁朋歌曹宏斌刘文昭. 萃取法分离钒铬的竞争机制[J]. 过程工程学报, 2018, 18(5): 989-995.
Ying SUN Pengge NING Hongbin CAO Wenzhao LIU. Competition mechanisms in separation of vanadium and chromium with extraction method[J]. Chin. J. Process Eng., 2018, 18(5): 989-995.

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