CIESC Journal

• 化工学报 • 上一篇    下一篇

三辛胺萃取有机羧酸的机理(Ⅰ)──三辛胺-醋酸体系

文梅,杨义燕,戴猷元,汪家鼎   

  1. 清华大学化学工程系!北京100084,清华大学化学工程系!北京100084,清华大学化学工程系!北京100084,清华大学化学工程系!北京100084
  • 出版日期:1998-06-25 发布日期:1998-06-25

MECHANISM 0F EXTRACTION FOR CARBOXYLIC ACID WITH TRI-N-OCTYLAMINE(Ⅰ)──ACETIC ACID-TOA SYSTEM

wen Mei;Yang Yiyan;Dai Youyuan;Wang Jiading(Department of Chemical Engineering,Tsinghua University,Beijing 100084)   

  • Online:1998-06-25 Published:1998-06-25

摘要: 采用Fourier红外光谱法测定了三辛胺-醋酸体系中不同结构萃合物的组成比,讨论了不同萃合物的组成比随萃取剂成分(络合剂浓度、稀释剂种类)的变化趋势.对离子对萃合物的百分率与络合萃取平衡分配系数D间相互关系的研究表明,离子对萃合物的比例越大,络合萃取相平衡分配系数也越大.

Abstract: The organic phase samples loaded with acetic acid were studied by FT-IR spectroscopy. Tri-n-octylamine(TOA)was used as a complexing agent.The fraction of ion-pair extents and hydrogenbonded extents in the systems were determined quantitatively.The effect of concentration of complexing agent,acid and diluents on this fraction was determined.The results showed that the higher the fraction of ionpair extents,the higher the phase equilibriun distribution ratio would be.

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