PROCEDE DE SEPARATION DU PLATINE ET/OU DU PALLADIUM

摘要

A process for the separation of platinum and/or palladium from acid starting solutions containing the chlorocomplexes thereof together with other platinum group metals and/or base metals in 0.01 to 2M acid solutions comprises contacting the starting solution with a suitable solvent extractant; the solvent extractant being substantially water insoluble, carried in an organic phase and comprising functional groups of the formula R2N-CH2-COOH wherein R is a long-chain alkyl group and thereafter separating the two phases and recovering the extracted platinum or palladium or both from the loaded solvent extractant.