应用化学 ›› 1995, Vol. 0 ›› Issue (1): 55-58.

• 研究论文 • 上一篇    下一篇

三辛胺萃取多元酚的研究

杨义燕, 冯颖, 戴猷元   

  1. 清华大学化学工程系, 北京 100084
  • 收稿日期:1994-03-29 修回日期:1994-08-29 出版日期:1995-02-10 发布日期:1995-02-10
  • 基金资助:
    国家自然科学基金资助项目

Extraction of Polyphenols with Tri-n-Octylamice in Organic Diluents

Yang Yiyan, Feng Ying, Dai Youyuan   

  1. Department of Chemicla Engineering, Tsinghua University, Beijing 100084
  • Received:1994-03-29 Revised:1994-08-29 Published:1995-02-10 Online:1995-02-10

摘要: 采用三辛胺为络合剂,苯或正辛醇为稀释剂研究了邻苯二酚、间苯三酚稀溶液的萃取相平衡.讨论了稀释剂、溶液pH值和硫酸钠浓度对分配系数的影响.确定了萃合物的组成.负载有机相的红外谱图分析表明,三辛胺与酚类的萃取同时存在氢键缔合溶剂化和离子缔合成盐历程.

关键词: 络合萃取, 邻苯二酚, 间苯三酚, 三辛胺

Abstract: Extraction of catechol and 1,3,5-trihydroxybenzene hy tri-n-octylamine(in ben-zene or octanol)lias been studied.The effects of organic diluents, pH and concentration of Na2SO4 on the distribution coefficient D have been investigated. FTIR analysis of the organicphase shows that trioctylamine forms complexes with phenols through hydrogenbond or ionicassociation. The compositions of complexes have been determined.

Key words: complexation extraction, catechol, trihydroxybenzene, tri-n-octylamine