Effect of pH on the extraction characteristics of succinic and formic acids with Tri-n-octylamine dissolved in 1-octanol |
| |
| Authors: | Yeon Ki Hong Won Hi Hong Yong Keun Chang |
| |
| Institution: | (1) Department of Chemical Engineering, Korea Advanced Institute of Science and Technology, 373-1 Kusong-dong, Yusong-gu, 305-701 Taejon, Korea |
| |
| Abstract: | A study was made on the extraction equilibria of succinic and formic acids from aqueous solutions using tri-n-octylamine (TOA)
in 1-octanol. It was shown that the loading values of TOA decreased with increasing pH values. The apparent equilibrium constants
for each acid-amine complex were determined by an equilibrium model. In the case of succinic acid, the formation of a bisuccinate
anion played an important role in the stoichiometry of the acid-amine complex. |
| |
| Keywords: | succinic acid formic acid pH values loading |
| 本文献已被 SpringerLink 等数据库收录！ |
