Comportement acido-basique du D2EHPA dans un système à deux phases et extraction du cuivre(II)
Written by sctunisie no commentsThe effect of the diluent on the acido-basic behavior of the di(2-ethylhexyl) phosphorique acid (D2EHPA) in a system with two phases was studied by pH-metry. The values of pKA were calculated and follow the ascending order, according to: 1-octanol < methyl isobuthyl ketone < cyclohexane < toluene < dichloromethane ~ chloroform. The variation of the nature of diluent on the extraction of copper(II) in sulphate medium by di(2-ethylhexyl) phosphoric acid made it possible to establish the following order of extraction: 1-octanol > cyclohexane > methyl isobuthyl ketone > dichloromethane > chloroform ~ toluene.
F. Ghebghoub, D. Barkat
Liquid-Liquid Extraction, Copper(II), D2EHPA, Diluents, Constant of acidity
Pages 201-205
