Uddin M S, Hidajat K, Lim B, Ching C
Department of Chemical Engineering, National University of Singapore.
J Chem Technol Biotechnol. 1990;48(4):415-26. doi: 10.1002/jctb.280480404.
Reactive extraction of L-phenylalanine from alkaline aqueous solution into xylene in the presence of tri-octyl-methyl-ammonium chloride (ALIQUAT 336) as complexing agent was studied using a stirred transfer cell. The study investigated the effects of carrier concentration and temperature on mass transfer rates. Transfer rate across the interface in the presence of surfactant molecules was also studied. A two-film model was proposed by considering film mass transfer resistances at the aqueous and organic phases. The model predicted adequately the experimental time-concentration data at different carrier concentrations and temperatures. The model was modified to take into account the presence of surfactant in the organic phase.
使用搅拌式传质池研究了以三辛基甲基氯化铵（ALIQUAT 336）作为络合剂，将L-苯丙氨酸从碱性水溶液中反应萃取到二甲苯中的过程。该研究考察了载体浓度和温度对传质速率的影响。还研究了在表面活性剂分子存在下跨界面的传质速率。通过考虑水相和有机相中的膜传质阻力，提出了双膜模型。该模型充分预测了不同载体浓度和温度下的实验时间-浓度数据。对该模型进行了修正，以考虑有机相中表面活性剂的存在。
