摘要
利用红外光谱研究二(2-乙基己基)磷酸和磷酸三丁酯络合萃取邻氨基苯酚在不同情况下的反应机理。结果表明:二(2-乙基己基)磷酸主要与邻氨基苯酚的—NH2发生反应,与邻氨基苯酚的阳离子和中性分子络合。萃取过程存在离子交换和离子缔合两种机制,生成相同结构的萃合物;而磷酸三丁酯主要与邻氨基苯酚的—OH发生反应,与邻氨基苯酚的中性分子发生氢键缔合,生成相同结构的萃合物;两种情况下生成萃合物的结构都与pH无关。
Reactive mechanism of OAP react with di（2-ethylhexyl）phosphoric acid and tri-nbutyl phosphate in different condition were studied by Fourier transform infrared spectrophotometer （FTIR）. The di （2-ethylhexyl）-phosphoric acid reacts with -NH2 of OAP （cation and neutral molecule of OAP）through iron-association and iron-exchange reaction, and two extracted compound have the same structure. While tri-n-butyl phosphate react -OH of OAP （neutral molecule of OAP） through hydrogen bonding. The pH values have no effect on the structure of the complex formed.
出处
《光谱实验室》
CAS
CSCD
北大核心
2009年第3期515-518,共4页
Chinese Journal of Spectroscopy Laboratory
基金
河南省重点科技攻关项目(072102190009)
郑州航院青年基础项目(Q07E025)
