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US 6,441,255 B1Granted
Method of producing alcohols by catalytic hydrogenation of aldehydes or ketones
AssigneeDegussa-Huls AG
InventorsThomas Haas, Bernd Jaeger, Jörg Sauer, Rudolf Vanheertum
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Abstract
Carrier-bound ruthenium catalysts are used to produce alcohols by the catalytic hydrogenation of aldehydes and ketones. The problem of deactivation of the catalyst is solved by the use of a ruthenium catalyst on an oxide carrier of the series TiO2, SiO2, ZrO2, MgO, mixed oxides thereof and silicates thereof. In particular, Ru on TiO2 or SiO2 results in a long service life of the catalyst.
Claims7
A method for producing an alcohol, comprising:
- catalytic hydrogenation of the appropriate aldehyde, except 3-hydroxypropion aldehyde, or ketone in aqueous or organic solution at a temperature of 20 to 53° C. and an H2 pressure of 0.5 to 30 MPa using a carrier-bound ruthenium catalyst,
- wherein the catalyst comprises ruthenium on an oxide carrier selected from the group consisting of TiO2, SiO2, ZrO2, MgO, mixed oxides thereof and silicates thereof, except zeolites, wherein the catalyst has a ruthenium content of 0.1 to 20% by weight.
Dependencies are inferred from the claim text.