Minimum Amount of Extracting Solvent of (A_(1)A_(2)…A_(t−1))/(A_(2)A_(3)…A_(t)) Separation When Using Non-barren Extracting Solvent

作     者：Fu-Xiang Cheng Sheng Wu Song-Ling Wang Bo Zhang Yan Liu Chun-Sheng Liao Chun-Hua Yan 

作者机构：Beijing National Laboratory for Molecular SciencesState Key Laboratory of Rare Earth Materials Chemistry and ApplicationsPKU-HKU Joint Lab on Rare Earth Materials and Bioinorganic ChemistryPeking UniversityBeijing 100871China China Minmetals(Beijing)Research Institute of RE Co.LtdBeijing 100085China 

出 版 物：《Chinese Journal of Chemistry》 (中国化学（英文版）)

年 卷 期：2014年第32卷第10期

页      面：1022-1028页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学] 

基　　金：the National Basic Research Program of China(973)(No.2012CBA01200) 

主　　题：minimum amount of extracting solvent rare earths hyperlink process multi-component separation 

摘      要：Hyperlink extraction technology,by virtue of its remarkable advantage of decreasing the use of chemicals in multi-component separation,has been extensively employed in rare earth separation industry in *** hyperlink processes,non-barren extracting solvent and scrubbing agent solution which contain the component(s)involved in starting feed are employed in order to save both alkali for saponification and acid for *** amount of extracting solvent(denoted as S_(min))and that of scrubbing agent solution(denoted as W_(min))are important parameters to determine the consumption amounts of alkali and acid for a given countercurrent extraction *** article therefore discusses the influence of using non-barren extracting solvent and scrubbing agent solution on S_(min) and W_(min) of an(A_(1)A_(2)…A_(t−1))/(A_(2)A_(3)…A_(t))*** equations for S_(min) and W_(min) are derived,and the variation of the composition of final raffinate as well as that of final extract are determined,which will provide a valuable guidance for the design of hyperlink extraction processes of multi-component separation,such as rare earths separation.