摘要
为研究β-环糊精衍生物类萃取剂萃取芳香酸对映体的动力学行为,以苯基琥珀酸对映体（PSA）为分离溶质,羟丙基-β-环糊精（HP-β-CD）为萃取剂,采用恒界面池法考察了搅拌速率、两相接触面积、萃取剂和溶质浓度等操作参数对苯基琥珀酸对映体萃取动力学的影响。实验结果表明：HP-β-CD萃取PSA为准一级反应萃取过程;且萃取发生在相界面,萃取速率随PSA的初始浓度的增大而增大,且呈线性关系。
Phenylsuccinic acid（PSA） racemate was used as solute,and hydroxypropyl-β-cyclodextrin（HP-β-CD） was chosen as extractant to investigate the extraction kinetics of aromatic acid enantiomers using β-cyclodextrin derivatives as chiral extractants in a stirred cell with a constant interfacial area.The extraction process was measured at various stirring speeds,interfacial areas,initial PSA concentration in organic phase as well as HP-β-CD concentration in aqueous phase.The result demonstrated that the reactive extraction was the quasi-first order process for PSA enantiomers at interface between two phases.The extraction rate was linearly proportional to the initial concentration of PSA.
出处
《广州化工》
CAS
2010年第5期91-93,101,共4页
GuangZhou Chemical Industry
基金
国家自然科学基金（20976041）
关键词
萃取动力学
手性分离
反应萃取
苯基琥珀酸对映体
extraction kinetics
chiral separation
reaction extraction
phenylsuccinic acid enantiomers
