Extmcition of hydroxycarboxylic acids with MIBK/toluene solutions of amines

Abstract

Studies are reported on the extraction of glycolic, malic, and citric acids by alamine 336 and tri-n-octylamine dissolved in MIBK/toluene mixture (1 : 1 volume ratio). The effects of amine type and concentration on extraction of hydroxycarboxylic acids by amines are investigated. Formation of acid amine complexes is a dominating factor in the system under consideration.. The distribution coefficients and loading factors are calculated and reported.