Processing, smelting and refining gold World Gold Council
29/07/2020· WOHLWILL ELECTROLYTIC PROCESS* The two gold refining methodsmonly employed to derive pure gold are: the Miller process and the Wohlwill process. The Miller process uses gaseous chlorine to extract impurities when gold is at melting point impurities separate into a layer on the surface of the molten purified gold. The Miller process is rapid and simple, but it





































