SYNTHESIS OF ALIPHATIC 1,3-DIOLS UTILIZING REDUCED LIGAND CONCENTRATION AND WATER EXTRACTION

摘要

THIS INVENTION IS A PROCESS FOR SYNTHESIZING ALIPHATIC 1,3-DIOLS IN ONE STEP BY HYDROFORMYLATION AND HYDROGENATION OF OXIRANE, CARBON MONOXIDE, AND HYDROGEN EMPLOYING A CATALYST COMPRISING A COBALT CARBONYL COMPOUND AND A COCATALYST METAL COMPOUND LIGATED WITH A LIGAND IN A LIGAND TO COCATALYST METAL ATOM MOLAR RATIO IN THE RANGE OF 0.2: 1.0 TO 0.6: 1.0, OPTIONALLY IN THE PRESENCE OF A PROMOTER, WHERE RECOVERY OF PRODUCT IS PREFERABLY ACCOMPLISHED VIA WATER EXTRACTION OF A DIOL RICH PHASE FROM THE BULK REACTION MIXTURE. THE PROCESS MODIFICATIONS CAN, PARTICULARLY IN COMBINATION, BE BENEFICIAL WITH RESPECT TO PRODUCT RECOVERY, CATALYST RECYCLE, AND OVERALL ECONOMICS OF A ONE-STEP PROCESS FOR PRODUCING ALIPHATIC 1,3-DIOLS.