EXTRACTION OF SILVER AND PALLADIUM METALS FROM AQUEOUS SOLUTIONS USING TERTIARY PHOSPHINE SULFIDES

摘要

EXTRACTION OF SILVER AND PALLADIUM METALS FROMAQUEOUS SOLUTIONS USING TERTIARY PHOSPHINE SULFIDESAbstract of the DisclosureSilver or palladium metals are selectively extrac-ted from aqueous sulfuric acid solution by contacting thesolution with a water-immiscible organic solvent extractionsolution comprising a tertiary phosphine sulfide compound;separating the resulting silver- or palladium- phosphinesulfide complex from the aqueous solution; and recoveringthe silver or palladium metal from the complex by suitablestripping means.