METHOD FOR REMOVAL OF GOLD BY LIQUID-LIQUID EXTRACTION FROM GOLD-CYANIDE COMPLEX IN AQUEOUS SOLUTION

摘要

An improved method is provided for the liquid-liquidextraction of gold from an aqueous liquid containing gold-cyanidecomplex comprising the steps of providing an aqueous solution whichcomprises a gold-cyanide complex, contacting the solution with aquaternary ammonium hydroxide extractant resulting in the formationof an insoluble gold-quaternary ammonium complex, and recoveringthe gold-quaternary ammonium complex.