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US 4,357,477 AGranted
Process for preparing ethylene glycol monoalkyl ethers
AssigneeTexaco Inc.
InventorJohn F. Knifton
Life of this patent
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Abstract
This invention pertains to the production of ethylene glycol monoalkyl ethers by reaction of carbon monoxide and hydrogen with (a) formaldehyde and an alcohol or (b) an acetal in the presence of a catalyst comprising a cobalt-containing compound and a tin or germanium promoter.
Claims24
A process for preparing ethylene glycol monoalkyl ethers which comprises reacting hydrogen, carbon monoxide and a material selected from the group consisting of:
- (a) formaldehyde and an alcohol of the formula:
- ROH,
- wherein R is alkyl of from 1 to 10 carbon atoms, and
- (b) an acetal of the formula:
- (R'O).sub.2 CH.sub.2
- wherein R is alkyl of from 1 to 10 carbon atoms, in the presence of a catalyst comprising a cobalt-containing compound and a promoter selected from the group consisting of a tin-containing compound and a germanium-containing compound, at superatmospheric pressures of about 500 psig or greater and at a temperature of about 50.degree. to about 300.degree. C. until substantially formation of the said ethylene glycol monoalkyl ether has been achieved and recovering the said ether from the reaction mixture.
3 more elements
Dependencies are inferred from the claim text.