Patent ID: 7799958

Claim:
A process for the production of iso-propanol comprising: hydrogenating acetone to iso-propanol in liquid phase in a first reaction stage comprising a first hydrogenation reaction zone, thereby obtaining a product stream leaving the reaction zone of the first reaction stage containing unreacted acetone and iso-propanol; transferring the product stream comprising acetone and iso-propanol to a subsequent reaction zone of a subsequent reaction stage, said product stream having at the inlet to the reaction zone of said subsequent reaction stage a temperature of 60 to 100° C.; and hydrogenating acetone in the product stream to iso-propanol in liquid phase in said subsequent reaction stage, wherein the temperature of the product stream leaving the subsequent reaction zone at an outlet from said subsequent reaction zone is 40° C. or less higher than the temperature of the product stream entering said subsequent reaction zone at the inlet to said subsequent reaction zone and the temperature in said subsequent reaction zone does not exceed 125° C.