NOVELTY – The rhodium recuperation and purification after separation from other metals has dissolution in molten salt for precipitation of contaminating metals and purification of the electrolytic rhodium solutions. Treatment with hydrogen peroxide is followed by use of the solution in electrochemical baths, e.g. for deposition of films of rhodium. USE – In industrial chemistry.
M25 (Production and refining of metals other than iron – including ore treatment, extraction, working up scrap, obtaining specific metals, control testing methods (C22B).)