Preparation of carbonyls of group vib metals

Claim 1

A PROCESS FOR PREPARING A CARBONYL OF A METAL SELECTED FROM THE GROUP CONSISTING OF CHROMIUM, TUNGSTEN AND MOLYDBEUM WHICH COMPRISES INTRODUCING INTO A PRESENCE RECTION A METAL SOURCE SELECTED FROM THE GROUP CONSISTING OF THE METAL PER SE. TRIVALENT CHROMIUM COMPOUNDS, DIVALENT CHROMIUM COMPOUNDS, TUNGSTEN HEXACHLORIDE, AND MOLYBDEUM PENTACHLORIDE; A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF IODINE AND IODINE CONTAINING COMPOUNDS; AND A NITRILE OF THE FORMULA R(CN)N, WHEREIN N IS A NUMBER FROM 1 TO 2, INCLUSIVE, AND R IS SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL, PHENYL AND LOWER ALKYLENE; IN THE ABSENCE OF ANY REDUCING METAL; PRESSURIZING THE REACTOR WITH CATRBON MONOXIDE TO A PRESURE IN THE RANGE OF ABOUT 100 TO 10,000 P.S.I.G.; TO RATIOS OF REACTANTS BEING AT LEAST 0.1 MOLE OF IODINE 3 MOLES OF NITRILE AND 6 MOLES OF CARBON MONOXIED PER MOLE OF METAL SOURCE; HEATING THE REACTOR TO A TEMPERATURE OF ABOUT 150* TO 325*C. AND MAINTAINING THE TEMPERATURE OF ABOUT 150* ACTION IS COMPLETED AS EVIDENCED BY A PRESSURE, DROP CORRESSPONDING TO THE UTILIZATION OF CARBON MONOXIED; AND SEPARATING THE THUS FORMED CARBONYL OF SAID SELECTED METAL BY FILTRATION AND STEAM DISTILLATION.