Oxo process for producing alcohols from olefins

Claim 1

A PROCESS FOR PRODUCING ALCOHOLS WHICH COMPRISES CARBOXYLATING AN OLEFIN WITH HYDROGEN AND CARBON MONOXIDE, HAVING A MOLAR RATIO OF H2/CO OF 1/1 TO 5/1, IN THE PRESENCE OF A COBALT CARBONYL CATALYST AT A PRESSURE BETWEEN 200 AND 1500 P.S.I.G., AND A TEMPERATURE INTHE RANGE OF 200* TO 350*F. TO PRODUCE A REACTION MIXTURE COMPRISING ALDEHYDES, DISSOLVED COBALT CARBONYLS AND LESS THAN 0.1 WEIGHT PERCENT, BASED ON SAID ALDEHYDES, OF ACID RADICALS CAPABLE OF FORMING SOLUBLE COBALT COMPOUNDS IN SAID ALDEHYDES UNDER PROCESS CONDITIONS, MAINTAINING AT LEAST A PORTION OF SAID REACTION MIXTURE AT A PRESSURE OF 200 TO 1500 P.S.I.G. BUT NOT SUBSTANTIALLY GREATER THAN EMPLOYED IN SAID CARBONYLATING STEP AND AT A TEMPERATURE SUFFICIENT TO CONVERT SAID DISSOLVED COBALT TO COBALT METAL, REMOVING SAID COBALT METAL FROM SAID HEAT TREATED REACTION MIXTURE AND HYDROGENATING THE COBALT FREE HEAT-TREATED REACTION MIXTURE TO ALCOHOLS AT A PRESSURE OF 200 TO 1500 P.S.I.G. BUT NOT SUBSTANTIALLY GREATER THAN EMPLOYED IN SAID HEAT-TREATING STEP AND AT A TEMPERATURE IN THE RANGE OF 400* TO 550*F.