| abstract |
A process for the production of metallic metals selected from the group consisting of copper, silver and mercury, which comprises contacting an aqueous solution of the metal compound with a solution of a reduced quinonic compound, preferably an anthraquinone compound, in an organic solvent which is substantially insoluble in and immiscible with water, resulting in the precipitation of the metallic compound which is recovered. The organic phase may be separated, the quinonic compound may be reduced and used again for treating subsequent batches of metal salts. |