Rhodium catalyst regeneration by carbon monoxide treatment
AssigneeUnion Carbide Corporation
InventorsRobert W. Beisner, Stephen C. Winans
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Abstract
This invention relates to the continuous production of alkane polyols by the reaction of hydrogen and CO in a homogeneous liquid phase mixture containing a rhodium carbonyl complex catalyst, the mole ratio of H.sub.2 /CO in the reactant gas being above about 0.1, wherein the improvement comprises periodically lowering the H.sub.2 /CO mole ratio in the reactant gas to about 0.1 or less and thereafter increasing the H.sub.2 /CO mole ratio to about its former value.
Claims3
In a process for continuously producing alkane polyols by the reaction of hydrogen and carbon monoxide in a homogeneous liquid phase mixture containing a rhodium carbonyl complex catalyst, the mole ratio of H.sub.2 /CO in the reactant gas being above about 0.1, the improvement which comprises periodically lowering the H.sub.2 /CO mole ratio in the reactant gas to about 0.1 or less and thereafter increasing the H.sub.2 /CO mole ratio to about its former value.
Dependencies are inferred from the claim text.