SEPARATION OF p-AMINOBENZOIC ACID BY REACTIVE EXTRACTION. 1. MECHANISM AND INFLUENCING FACTORS
The comparative study on the reactive extraction of p-aminobenzoic acid with Amberlite LA-2 and D2EHPA in two solvents with different polarity (n-heptane and dichloromethane) indicated that the extractant type and solvent polarity control the extraction mechanism. Thus, the reactive extraction with...
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Association of the Chemical Engineers of Serbia
2008-09-01
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doaj-27770b5df1c947c9ae775e5b6f29b7772020-11-24T23:34:41ZengAssociation of the Chemical Engineers of SerbiaChemical Industry and Chemical Engineering Quarterly1451-93722008-09-01143159165SEPARATION OF p-AMINOBENZOIC ACID BY REACTIVE EXTRACTION. 1. MECHANISM AND INFLUENCING FACTORSDAN CASCAVALMARIA CAMARUTANCA-IRINA GALACTIONThe comparative study on the reactive extraction of p-aminobenzoic acid with Amberlite LA-2 and D2EHPA in two solvents with different polarity (n-heptane and dichloromethane) indicated that the extractant type and solvent polarity control the extraction mechanism. Thus, the reactive extraction with Amberlite LA-2 occurs by means of the interfacial formation of an aminic adduct with three extractant molecules in low-polar solvent, or of an salt with one extractant molecule in higher polar solvent. Similarly, the extraction with D2EHPA is based on the formation of an acidic adduct with two extractant molecules in n-heptane, or of a salt with one extractant molecule in dichloromethane. The most efficient extraction has been reached for the combination Amberlite LA-2-dichloromethane.http://www.ache.org.rs/CICEQ/2008/No3/02_14%283%29_2008.pdfp-aminobenzoic acidreactive extractionAmberlite LA-2di-(2-ethylhexyl) phosphoric acidextraction constantdistribution coefficient |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
DAN CASCAVAL MARIA CAMARUT ANCA-IRINA GALACTION |
spellingShingle |
DAN CASCAVAL MARIA CAMARUT ANCA-IRINA GALACTION SEPARATION OF p-AMINOBENZOIC ACID BY REACTIVE EXTRACTION. 1. MECHANISM AND INFLUENCING FACTORS Chemical Industry and Chemical Engineering Quarterly p-aminobenzoic acid reactive extraction Amberlite LA-2 di-(2-ethylhexyl) phosphoric acid extraction constant distribution coefficient |
author_facet |
DAN CASCAVAL MARIA CAMARUT ANCA-IRINA GALACTION |
author_sort |
DAN CASCAVAL |
title |
SEPARATION OF p-AMINOBENZOIC ACID BY REACTIVE EXTRACTION. 1. MECHANISM AND INFLUENCING FACTORS |
title_short |
SEPARATION OF p-AMINOBENZOIC ACID BY REACTIVE EXTRACTION. 1. MECHANISM AND INFLUENCING FACTORS |
title_full |
SEPARATION OF p-AMINOBENZOIC ACID BY REACTIVE EXTRACTION. 1. MECHANISM AND INFLUENCING FACTORS |
title_fullStr |
SEPARATION OF p-AMINOBENZOIC ACID BY REACTIVE EXTRACTION. 1. MECHANISM AND INFLUENCING FACTORS |
title_full_unstemmed |
SEPARATION OF p-AMINOBENZOIC ACID BY REACTIVE EXTRACTION. 1. MECHANISM AND INFLUENCING FACTORS |
title_sort |
separation of p-aminobenzoic acid by reactive extraction. 1. mechanism and influencing factors |
publisher |
Association of the Chemical Engineers of Serbia |
series |
Chemical Industry and Chemical Engineering Quarterly |
issn |
1451-9372 |
publishDate |
2008-09-01 |
description |
The comparative study on the reactive extraction of p-aminobenzoic acid with Amberlite LA-2 and D2EHPA in two solvents with different polarity (n-heptane and dichloromethane) indicated that the extractant type and solvent polarity control the extraction mechanism. Thus, the reactive extraction with Amberlite LA-2 occurs by means of the interfacial formation of an aminic adduct with three extractant molecules in low-polar solvent, or of an salt with one extractant molecule in higher polar solvent. Similarly, the extraction with D2EHPA is based on the formation of an acidic adduct with two extractant molecules in n-heptane, or of a salt with one extractant molecule in dichloromethane. The most efficient extraction has been reached for the combination Amberlite LA-2-dichloromethane. |
topic |
p-aminobenzoic acid reactive extraction Amberlite LA-2 di-(2-ethylhexyl) phosphoric acid extraction constant distribution coefficient |
url |
http://www.ache.org.rs/CICEQ/2008/No3/02_14%283%29_2008.pdf |
work_keys_str_mv |
AT dancascaval separationofpaminobenzoicacidbyreactiveextraction1mechanismandinfluencingfactors AT mariacamarut separationofpaminobenzoicacidbyreactiveextraction1mechanismandinfluencingfactors AT ancairinagalaction separationofpaminobenzoicacidbyreactiveextraction1mechanismandinfluencingfactors |
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