武汉工程大学学报2011，Vol.33Issue(2)：34-37,4.DOI:10.3969/j.issn.1674-2869.2011.02.009
应用恒界面池法研究磷酸三丁酯萃取磷酸的动力学
Studies on extraction kinetics of phosphoric acid by tributyl phosphate using method of constant interfacial area stirred cell
摘要
Abstract
The extraction kinetics of phosphoric acid in wet-process with hydrochloric acid by tributyl phosphate (TBP) was investigated by using a constant interfacial area stirred cell. The effects of interracial area between two phases, stirring rate, the initial concentrations of phosphoric acid and hydrochloric acid in aqueous phase on the extraction rate of phosphoric acid were studied. The results showed that the initial forward extraction rate of phosphoric acid increased with the increasing of interracial area between the two phases, stirring rate, the initial concentrations of phosphoric acid and hydrochloric acid in aqueous phase. The process of phosphoric acid extraction with TBP might be controlled by a diffusion controlling regime. The extraction rate equation of phosphoric acid was established from experimental results as follows:R(H3PO4) =2.51 × 10-6C0.70(H3PO4)C0.61HC1 .关键词
磷酸/盐酸/磷酸三丁酯/萃取动力学/恒界面池分类
化学化工引用本文复制引用
金士威,易琼,张旭,高荣,丁一刚..应用恒界面池法研究磷酸三丁酯萃取磷酸的动力学[J].武汉工程大学学报,2011,33(2):34-37,4.基金项目
国家十一五科技支撑计划(2007BAB08B09) （2007BAB08B09）
