Open AccessModeling of the selective pertraction of carboxylic acids obtained by citric fermentation
Author(s) -
Dan Caşcaval,
AncaIrina Galaction,
Corneliu Oniscu
Publication year - 2004
Publication title -
hemijska industrija
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.147
H-Index - 19
eISSN - 2217-7426
pISSN - 0367-598X
DOI - 10.2298/hemind0403097c
Subject(s) - chemistry , citric acid , succinic acid , maleic acid , extraction (chemistry) , amberlite , chromatography , membrane , selectivity , factorial experiment , fermentation , organic chemistry , adsorption , biochemistry , catalysis , polymer , statistics , mathematics , copolymer
Facilitated pertraction was applied for the selective separation of citric, maleic and succinic acids from a mixture obtained by citric fermentation. The pertraction equipment included a U-shaped cell containing 1,2-dichloro-ethane as the liquid membrane and Amberlite LA-2 as the carrier. The experimental data indicated that maleic and succinic acids can be initially selectively separated from citric acid, followed by the selectively separation of maleic acid from succinic acid. Using statistical analysis and a second order factorial experiment, two mathematical correlations describing the influence of the main process variables on pertraction selectivity were established. For both extraction systems, the considered variables controlled the extraction process to an extent of 92.9-99.9%, the carrier concentration inside the liquid membrane exhibiting the most important influence