Reactive extraction of pimelic (heptanedioic) acid from dilute aqueous solutions using trioctylamine in decan-1-ol

被引：14
作者：
Marti, Mustafa Esen [1 ]
Zeidan, Hani [1 ]
Uslu, Hasan [2 ,3 ]
机构：
[1] Selcuk Univ, Dept Chem Engn, Konya, Turkey
[2] Beykent Univ, Dept Chem Engn, Istanbul, Turkey
[3] King Abdulaziz Univ, Dept Chem & Mat Engn, Riyadh, Saudi Arabia
来源：
FLUID PHASE EQUILIBRIA | 2016年 / 417卷
关键词：
Reactive extraction; Pimelic acid; Trioctylamine; Decan-1-ol; Dicarboxylic acids; CARBOXYLIC-ACIDS; FORMIC-ACID; LACTIC-ACID; AMINE EXTRACTANTS; RECOVERY; SOLVENT; FERMENTATION; EQUILIBRIA; SOLUBILITY;
D O I：
10.1016/j.fluid.2016.02.039
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The present study is on the reactive extraction of pimelic acid (heptanedioic acid) from dilute aqueous solutions by trioctylamine (TOA) in decan-1-ol. The equilibrium studies were performed at 298 K and the results were used to calculate the values of distribution coefficient (K-D), loading factor (Z) and degree of extraction (E%). The maximum K-D was obtained as 6234 when initial concentrations of pimelic acid and TOA were 0.038 and 0.2 mol(-1) kg(-1), respectively. The extraction efficiency was 98.27% under these conditions. Moreover, Z values between 0.184 and 2.934 were obtained in the ranges of parameters studied. The data presents the formation of 1:1 and 1:2 pimelic acid-TOA solvates in the organic phase. A solvatochromic model (LSER) was applied to the equilibrium data and the K-D values obtained using the model show a good fit to the experimental outcomes. (C) 2016 Elsevier B.V. All rights reserved.
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收藏
页码：197 / 202
页数：6
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