摘要
本文用单液滴法研究了纯水反苹取有机胺-200~#溶剂油中柠檬酸的动力学,建立了反萃取动力学经验方程,并考察了温度对反萃取速率的影响。
The back-extraction kinetics of citric acid from extrac phace by distilled water with Single Drop Method have been studied. The rate constant was calculated to be 0.005314 at 353K. The influences of olcic acid. butyl acetate and 200 paraffin concentration on the back-ex- traction rate are alsodiscussed. Thus the rate equation may be represented as R=k_b[H_3A]_(o)~0.7636[R_3M]_(o)~0.644[butylacetate]_(o)~2.067. Where R is the back-extraction rate, k_bis the rate constant, [H_3A]_(o),[R_3N]_(o)and [butyl acetate]_(o)is the concentration of citric acid, alkyl amine and butyl acetate in the organic phase respectively.
关键词
有机胺
柠檬酸
反萃取
动力学
Amine
citric acid
back-extraction
kinetics
