A novel constant interfacial area cell for determining the extraction kinetics of Er(III) from chloride medium

doi:10.1016/j.cjche.2018.04.016

Chin.J.Chem.Eng. ›› 2018, Vol. 26 ›› Issue (6): 1435-1441.DOI: 10.1016/j.cjche.2018.04.016

• General reactor • Previous Articles

A novel constant interfacial area cell for determining the extraction kinetics of Er(III) from chloride medium

Chuanxu Xiao^1,2, Kun Huang¹, Huizhou Liu^1,3

1 CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China;
2 University of Chinese Academy of Sciences, Beijing 100049, China;
3 Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China

Received:2017-08-04 Revised:2018-04-20 Online:2018-08-03 Published:2018-06-28
Contact: Kun Huang,E-mail address:khuang@ipe.ac.cn;Huizhou Liu,E-mail address:hzliu@ipe.ac.cn
Supported by:
Supported by the National Natural Science Foundation of China (51574213, 51074150) and the Key Project of Chinese National Programs for Fundamental Research and Development (2012CBA01203, 2013CB632602).

A novel constant interfacial area cell for determining the extraction kinetics of Er(III) from chloride medium

Chuanxu Xiao^1,2, Kun Huang¹, Huizhou Liu^1,3

1 CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China;
2 University of Chinese Academy of Sciences, Beijing 100049, China;
3 Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China

通讯作者: Kun Huang,E-mail address:khuang@ipe.ac.cn;Huizhou Liu,E-mail address:hzliu@ipe.ac.cn
基金资助:
Supported by the National Natural Science Foundation of China (51574213, 51074150) and the Key Project of Chinese National Programs for Fundamental Research and Development (2012CBA01203, 2013CB632602).

Abstract

Abstract: A novel constant interfacial area cell (NCIAC), by spatially separating the agitation from liquid flow circulation of organic and aqueous two phases, was suggested to obtain detailed kinetic data for Er(Ⅲ) extraction from chloride medium by 2-ethyl-hexyl-phosphonic acid mono-(2-ethylhexyl) ester (EHEHPA). Different from the traditional Lewis cell and the constant interfacial area cell with laminar flow, the concentrations of Er(Ⅲ) in organic and aqueous two phases were uniform, and the stability of the interfacial area between the two phases could be controlled effectively. Therefore, the special requirements for the design of agitators in the traditional Lewis cell and the constant interfacial area cell for minimizing the influence of diffusion resistance could be avoided. Experimental results indicated that the extraction kinetics was mainly affected by the aqueous flow rate, interfacial area between organic and aqueous two phases, and the aqueous pH values. An extraction kinetic equation was suggested based on the experimental data.

Key words: Solvent extraction, Measurement, Kinetics, Constant interfacial area cell, Er (III) extraction, EHEHPA

摘要： A novel constant interfacial area cell (NCIAC), by spatially separating the agitation from liquid flow circulation of organic and aqueous two phases, was suggested to obtain detailed kinetic data for Er(Ⅲ) extraction from chloride medium by 2-ethyl-hexyl-phosphonic acid mono-(2-ethylhexyl) ester (EHEHPA). Different from the traditional Lewis cell and the constant interfacial area cell with laminar flow, the concentrations of Er(Ⅲ) in organic and aqueous two phases were uniform, and the stability of the interfacial area between the two phases could be controlled effectively. Therefore, the special requirements for the design of agitators in the traditional Lewis cell and the constant interfacial area cell for minimizing the influence of diffusion resistance could be avoided. Experimental results indicated that the extraction kinetics was mainly affected by the aqueous flow rate, interfacial area between organic and aqueous two phases, and the aqueous pH values. An extraction kinetic equation was suggested based on the experimental data.

关键词: Solvent extraction, Measurement, Kinetics, Constant interfacial area cell, Er (III) extraction, EHEHPA

Chuanxu Xiao, Kun Huang, Huizhou Liu. A novel constant interfacial area cell for determining the extraction kinetics of Er(III) from chloride medium[J]. Chin.J.Chem.Eng., 2018, 26(6): 1435-1441.

Chuanxu Xiao, Kun Huang, Huizhou Liu. A novel constant interfacial area cell for determining the extraction kinetics of Er(III) from chloride medium[J]. Chinese Journal of Chemical Engineering, 2018, 26(6): 1435-1441.

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A novel constant interfacial area cell for determining the extraction kinetics of Er(III) from chloride medium

A novel constant interfacial area cell for determining the extraction kinetics of Er(III) from chloride medium

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