Chinese Journal of Applied Chemistry ›› 1996, Vol. 0 ›› Issue (3): 78-80.

• Report • Previous Articles     Next Articles

Complexing Extraction of Glycollic Acid from Dilute Solution

Li Ruili, Tan Zhiqiang, Zhu Shenlin, Yang Yiyan, Dai Youyuan   

  1. Chemical Engineering Department, Tsinghua University, Beijing 100084
  • Received:1995-09-04 Revised:1996-02-06 Published:1996-06-10 Online:1996-06-10

Abstract: Using the extraction system consisting of trioctylamine and 1-octanal,the complexing extraction of glycollic acid from dilute solution was studied,the effects of temperature and extractant concentration on the distribution coefficient were discussed,and the con-stitution of complex and thermal effect(-△H)of extraction were determined.In addition, that two bonding types took part in the process of Lewis acid-base complexing extraction were confirmed further through analyzing the infrared spectrum of glycollic acid loaded organic phase.

Key words: complexing extraction, glycollic acid, trioctylamine