RECOVERY OF CR.SUB.2O.SUB.3 FROM A CHROMIUM BEARING SOLUTION

摘要

9709-1RECOVERY OF Cr2O3 FROM ACHROMIUM BEARING SOLUTIONAbstract of the DisclosureMethod for the recovery of high purity Cr2O3for use as a pigment or metallurgical additive from aNa2CrO4 or Na2Cr2O7 solution by producing (NH4)2CrO4by solvent extraction, evaporating the aqueous(NH4)2CrO4 and igniting the resulting solids toprovide high purity Cr2O3.S P E C I F I C A T I O N