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Equilibrium study on reactive extraction of propionic acid with N1923 in different diluents
Wang, Kang1,2; Chang, Zhidong1; Ma, Yinchen1,2; Lei, Chao1,2; Jin, Shengchao1,2; Wu, Yong1,2; Mahmood, Iram1,2; Hua, Chao1; Liu, Huizhou1; Chang, ZD
2009-04-15
Source PublicationFLUID PHASE EQUILIBRIA
ISSN0378-3812
Volume278Issue:1-2Pages:103-108
AbstractThe equilibrium for the propionic acid extraction by N1923 in three diluents, represented as proton-donator (n-octanol), polar (butyl acetate). inert (hexane) types, have been studied. The diluents had a significant influence on the equilibrium. The loading ratio, Z, was employed to investigate the effect of diluents on the extraction efficiency. When Z(exp) was lower than 1, N1923 extraction followed the order: n-octanol > butyl acetate > hexane. When the loading ratio Z(exp) was higher than 1, the order changed to: butyl acetate > hexane > n-octanol. Equilibrium complex constants K(11), K(21), K(31) have been estimated. The results showed that K(11) Was Much higher than K(21) and K(31), demonstrated K(11) as the dominant factor in the extraction process. Comparing the values of K(11) of all the three diluents. the following order was observed: n-octanol > butyl acetate > hexane. The influence of amine concentration on the extraction equilibrium constant in different diluents was also investigated. The extraction equilibrium constant K(11) decreased with the increase of amine concentration in n-octanol. When hexane and butyl acetate were used as diluent, the extraction equilibrium constant K(11) increased slightly with the increase of amine concentration. (C) 2009 Elsevier B.V. All rights reserved.
KeywordReactive Extraction Equilibrium Propionic Acid N1923 Diluent
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1016/j.fluid.2009.01.014
Indexed BySCI
Language英语
WOS KeywordTRI-N-OCTYLAMINE ; LACTIC-ACID ; AMINE EXTRACTION ; CARBOXYLIC-ACIDS ; CITRIC-ACID ; AQUEOUS-SOLUTIONS ; ALAMINE 336 ; HYDROXYCARBOXYLIC ACIDS ; LIQUID EQUILIBRIA ; QUATERNARY AMINES
WOS Research AreaThermodynamics ; Chemistry ; Engineering
WOS SubjectThermodynamics ; Chemistry, Physical ; Engineering, Chemical
WOS IDWOS:000265175900015
Citation statistics
Cited Times:31[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/6684
Collection生化工程国家重点实验室
Corresponding AuthorChang, ZD
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Key Lab Green Proc Engn, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Wang, Kang,Chang, Zhidong,Ma, Yinchen,et al. Equilibrium study on reactive extraction of propionic acid with N1923 in different diluents[J]. FLUID PHASE EQUILIBRIA,2009,278(1-2):103-108.
APA Wang, Kang.,Chang, Zhidong.,Ma, Yinchen.,Lei, Chao.,Jin, Shengchao.,...&Chang, ZD.(2009).Equilibrium study on reactive extraction of propionic acid with N1923 in different diluents.FLUID PHASE EQUILIBRIA,278(1-2),103-108.
MLA Wang, Kang,et al."Equilibrium study on reactive extraction of propionic acid with N1923 in different diluents".FLUID PHASE EQUILIBRIA 278.1-2(2009):103-108.
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