Recovery of bismuth from chloride process solutions

Recovery of catalytically-useful cobalt and like metal moieties

Recovery of copper

Recovery of copper and zinc as sulfides from copper-iron sulfide

Recovery of copper and/or nickel and/or zinc

Recovery of copper from arsenical drosses by ammonium arsenate l

Recovery of gold and silver from complex refractory sulphide ore

Recovery of gold and/or silver from cyanide leach liquors on act

Recovery of gold by a carbon-in-pulp process

Recovery of metal values from lead smelter matte

Recovery of metal values from ores

Recovery of metal values from zinc plant residues

Recovery of metals

Recovery of metals

Recovery of nitric acid soluble transition metals from sulfur an

Recovery of nitric acid soluble transition metals from sulfur an

Recovery of precious metals by oxidation in the aqueous phase of

Recovery of silver-containing scales from aqueous media

Recovery of vanadium and copper catalyst metals using ketones

Recovery of zinc from sulphidic concentrates