EXTRACTION KINETICS OF YTTRIUM WITH PURIFIED CYANEX 923 FROM NITRATE MEDIUM

作     者：H. Tong, Y.G. Wang, J.H. Lei, D.Q. Li, and P. TangDepartment of Applied Chemistry, Wuhan University of Technology, Wuhan 430070, China Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, The Chinese Academy of Sciences, Changchun 130022, China 

作者机构：Department of Applied Chemistry Wuhan University of Technology Key Laboratory of Rare Earth Chemistry and Physics Changchun Institute of Applied Chemistry The Key Laboratory of Rare Chinese Academy of Sciences 

出 版 物：《Acta Metallurgica Sinica(English Letters)》 (金属学报（英文版）)

年 卷 期：2003年第16卷第6期

页      面：428-432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] 070302[理学-分析化学] 0703[理学-化学] 

基　　金：the National Program entitled 'Basic Research of Rare Earths'(G1998061301) 国家高技术研究发展计划(863计划)(2002AA647070) 

主　　题：yttrium Cyanex 923 extraction kinetics interfacial tension 

摘      要：Mass transfer and extraction kinetics of yttrium with the purified Cyanex 923 in n-heptane from nitrate medium have been investigated by using a constant interfacial cell with laminar flow at 298K. The interfacial adsorption properties of purified Cyanex 923-heptane-0.20mol/L (H, Na)NO3 were studied at 298K. The experimental results show that the mass transfer is controlled by diffusion and the chemical reactions are carried out in the interfacial zone. The extraction rates of yttrium were measured at different chemical compositions by varying ionic strength, pH values and the purified Cyanex 923 concentrations. The initial extraction rate equations were obtained.