Catalyzed process for oxidation of ozonides of unsaturates to carboxylic acids
AssigneeHenkel Corporation
InventorLouis Rebrovic
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Abstract
Zeolites, particularly X type zeolites, essentially irrespective of the cation they contain, are effective heterogeneous catalysts for the oxidative conversion of the products of reaction of organic molecules containing a --HC.dbd.CH-- structure with ozone to at least two carboxylic acid molecules, with gaseous diatomic oxygen as the oxidative agent. The process is particularly well adapted to converting oleic acid into a mixture of azelaic and pelargonic acids.
Claims20
A process in which organic molecules containing a structural unit of the formula --HC.dbd.CH-- are each converted into two or more molecules containing a structural unit of the formula --COOH by reaction with ozone and subsequent or simultaneous reaction with diatomic oxygen gas, wherein the improvement comprises contacting a fluid phase containing ozonides formed by reaction with ozone of the organic molecules containing a structural unit of the formula --HC.dbd.CH-- with a solid phase catalyst selected from the group consisting of all X and Y type zeolites, during at least part of the reaction with the diatomic oxygen gas.
Dependencies are inferred from the claim text.