| abstract |
DIRECTED TO A PROCES FOR SEPARATELY RECOVERING NICKEL AND COBALT FROM AN AQUEOUS SOLUTION CONTAINING THE SAME WHEREIN THE NICKEL AND COBALT CONTENTS ARE PRECIPITATED AS REDUCIBLE COMPOUNDS, E.G., BASIC CARBONATES, SEPARATING AND DRYING THE RESULTING PRECIPITATES, REDUCING THE COMPOUNDS AT A TEMPERATURE BELOW ABOUT 400*C. AND THEN TREATING THE REDUCED METAL PRODUCTS WITH CARBON MONOXIDE AT SUPERATMOSPHERIC PRESSURES AND A TEMPERATURE BELWO 100*C. TO EVOLVE NICKEL CARBONYL THEREBY SEPARTING THE NICKEL FROM THE COBALT IN THE REDUCED PRODUCT. |