TnOA-H2SO4体系萃取铬（Ⅵ）机理的研究

作     者：段群章 Duan Qunzhang(Department of Chemistry, Central South University of Technology, Changsha) The mechanism of extracting Cr(Ⅵ) with the system of tri-n-octylamine-H_2SO_4 by saturation method was studied. The species in extracted Cr and the molar ratio of TnOA to CrO_4~(2-) and Cr_2O_7~(2-) in extracted chromium complex compounds were measured at different pH and different total concentration of Cr. And extractive reaction equation of Cr was also given. Different conclusions of Deptula et al. for the species in extracted Cr(Ⅵ) were clarified,

作者机构：中南工业大学化学系 长沙 

出 版 物：《分析化学》 (Chinese Journal of Analytical Chemistry)

年 卷 期：1987年第12期

页      面：1076-1080页

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] 

主　　题：VI TnOA-H2SO4 SO 萃取反应 硫酸体系 Cr 酸度 型体 无水乙酸 

摘      要：本文报道了用饱和法研究TnOA-H2SO4体系萃取铬（Ⅵ）的机理,测量了在不同pH和不同铬（Ⅵ）浓度下的铬（Ⅵ）萃取型体和TnOA对CrO42-和Cr2O72-的萃合比,给出了铬的萃取反应式,揭示了Deptuta等人对铬（Ⅵ）的萃取型体的不同结论。