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US 11,377,615 B2Granted
Selective acetalization / etherification process
AssigneeBp P.L.C.
InventorsJon Deeley, Gareth Armitage, Fiona Jackson
Life of this patent
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Abstract
The present invention relates to a selective process for preparing acetals or ethers. In particular, the process involves a selective catalytic hydrogenolysis of a trihydrocarbyl orthoesterso as to control the extent of dealcoholation to afford either the corresponding acetal or ether product. Ether products preparable by means of the present invention include ethers which are suitable for use as base stocks in lubricating compositions.
Claims21
A process for preparing an acetal, said process comprising the step of:
- i) subjecting a trihydrocarbyl orthoester to hydrogenolysis in the presence of a hydrogenation catalyst to form an acetal;
- wherein hydrogenolysis is performed at a temperature of 125° C. or less.
A process for preparing an ether, said process comprising the step of:
- i) subjecting a trihydrocarbyl orthoester to hydrogenolysis in the presence of a hydrogenation catalyst to form an ether;
- wherein hydrogenolysis is performed at a temperature of 140° C. or greater.
Dependencies are inferred from the claim text.