PROCESS FOR SEPARATING AT LEAST ONE PLATINOID ELEMENT FROM AN ACIDIC AQUEOUS SOLUTION COMPRISING, BESIDES THIS PLATINOID ELEMENT, ONE OR MORE OTHER CHEMICAL ELEMENTS

摘要

The invention relates to a process for recovering at least one platinoid element contained in an acidic aqueous solution comprising chemical elements other than said platinoid element, said process comprising the following steps: a step of bringing said acidic aqueous solution into contact with a reducing amount of a reducing agent which is a non-sulphurous and non-glucidic alcoholic compound chosen from cyclic, optionally aromatic, alcohols and aliphatic polyols, by means of which said platinoid element is reduced to its 0 oxidation state; a step of separating said thus reduced platinoid element from said acidic aqueous solution.