Isomerization of branched aldehydes to ketones
AssigneeCelanese Corporation
InventorsH. Clay Linstid, III, Gerald S. Koermer
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Abstract
A process of isomerizing branched aldehydes to ketones is provided which comprises contacting at isomerization conditions a branched aldehyde with a zeolite catalyst of the formula: ##EQU1## wherein M is selected from the group consisting of a mixture of alkali metal cations, especially sodium, and tetraalkylammonium cations, the alkyl groups of which preferably contain 2 to 5 carbon atoms, and x is at least 5. The contacting is conducted at a temperature of from about 200.degree. C. to about 600.degree. C. and at a pressure of from about 20 psig to about 100 psig. The branched aldehyde is contacted in the presence of water in a molar ratio of water-to-aldehyde of up to about 20 to 1.
Claims6
A process for isomerizing branched aldehydes to ketones which comprises contacting a 2-alkyl substituted aldehyde with a ZSM-5 type crystalline aluminosilicate zeolite at a temperature from about 200.degree. C. to about 600.degree. C. in the presence of water in a molar ratio range from about 0.03 to about 20 moles of water per mole of aldehyde.
Dependencies are inferred from the claim text.