CAJ | 학술논문

利用层流恒界面池研究在硫酸体系中双功能离子液体萃取剂[[A336][P204]]萃取Ce(IV)和F(I)的动力学过程，以便阐述萃取机理及萃取过程中的传质机制。在动力学数据分析中采用假一级反应动力学方法处理。通过讨论在Ce(IV)和Ce(IV)-F(I)的混合体系中搅拌速率、比界面积和温度对萃取的影响，推导出萃取过程是由水相和界面混合化学反应控制的。通过研究在Ce(IV)和Ce(IV)-F(I)的混合体系中各反应物对萃取速率常数的影响，从而确定了反应速率方程。通过机理和动力学模式的推导，验证了萃取反应速率方程的可靠性。
이용층류항계면지연구재류산체계중쌍공능리자액체췌취제[[A336][P204]]췌취Ce(IV)화F(I)적동역학과정，이편천술췌취궤리급췌취과정중적전질궤제。재동역학수거분석중채용가일급반응동역학방법처리。통과토론재Ce(IV)화Ce(IV)-F(I)적혼합체계중교반속솔、비계면적화온도대췌취적영향，추도출췌취과정시유수상화계면혼합화학반응공제적。통과연구재Ce(IV)화Ce(IV)-F(I)적혼합체계중각반응물대췌취속솔상수적영향，종이학정료반응속솔방정。통과궤리화동역학모식적추도，험증료췌취반응속솔방정적가고성。
The extraction kinetics of Ce(IV) and Ce(IV)-F-mixture systems from sulfuric solutions to n-heptane solution containing Bif-ILE [A336][P204] ([trialkylmethylammonium][di-2-ethylhewanxylphosphinate]) with a constant interfacial area cell with laminar flow were studied, just to elucidate the extraction mechanism and the mass transfer models. The data were analyzed in terms of pseudo-first-order constants. The effects of stirring speed, specific interfacial area and temperature on the extraction rate in both systems were discussed, suggesting that the extractions were mixed bulk phases-interfacial control process. Supported by the experimental data, the corresponding rate equations for Ce(IV) extraction system and Ce(IV)-F- mixture extraction system were obtained. The experimental results indicated the rate-controlling step. The kinetics model was deduced from the rate-controlling step and consistent with the rate equation.