Kinetic Study of Hydrothermal Stripping from Iron-Loaded Organic Phase  

作　　者：王兴尧 韩珺圆 杨桂琴 卢立柱 谢慧琴 康晓红 

机构地区：[1]School of Sciences, Tianjin University [2]Institute of Process Engineering, Chinese Academy of Sciences [3]Beijing Jiaotong University

出　　处：《Transactions of Tianjin University》2007年第2期113-116,共4页天津大学学报（英文版）

基　　金：Supported by National Natural Science Foundation of China (No.20276074)

摘　　要：The iron-loaded organic phase of naphthenic acid-isooctyl alcohol-kerosene was prepared, and the process kinetics of hydrothermal stripping of iron from the phase was studied. Several factors affecting hydrothermal stripping, such as the polymer of naphthenic acid, initial concentrations of iron and naphthenic acid, temperature and agitation time, were investigated, and based on experimental results and theoretical analysis, two kinetic models were established.The stripping rate equation suggests that the hydrothermal stripping process activation energy is 96.4 kJ·mol-1 and the stripping is controlled by hydrolysis of naphthenic complex of iron. The values calculated by the stripping fraction equation comparatively accord with the experimental data.The iron-loaded organic phase of naphthenic acid-isooctyl alcohol-kerosene was prepared, and the process kinetics of hydrothermal stripping of iron from the phase was studied. Several factors affecting hydrothermal stripping, such as the polymer of naphthenic acid, initial concentrations of iron and naphthenic acid, temperature and agitation time, were investigated, and based on experimental results and theoretical analysis, two kinetic models were established. The stripping rate equation suggests that the hydrothermal stripping process activation energy is 96.4 kJ· mol^-1 and the stripping is controlled by hydrolysis of naphthenic complex of iron. The values calculated by the stripping fraction equation comparatively accord with the experimental data.

关 键 词：hydrothermal stripping rate equation activation energy stripping fraction 

分 类 号：O621.25[理学—有机化学]