Metallic hydrogenation catalysts, production and use thereof
AssigneeBASF SE
InventorsDominic Vanoppen, Michael Veith, Kroum Valtchev
Life of this patent
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Abstract
The catalyst can be prepared by reduction of a precursor of a hydrogenation-active metal, which may be present on an oxidic support, by reaction with at least one compound of the formula (I) HnM(OR)3−n (I) where M is Ga or Al, R is CR′3 or SiR′3 where R′ is C1-20-alkyl, and n is 1 or 2, or dimers or oligomers thereof, wherein the crystallite size of the hydrogenation-active metal in the finished catalyst is from 5 to 30, preferably 5 to 15 nm.
Claims8
A catalyst which can be prepared by reduction of a Ni-precursor, which is present on an oxidic support, selected from among TiO2, ZrO2 and mixtures thereof, by reaction with at least one compound of the formula (I)
- HnM(OR)3−n (I)
- where
- M is Ga or Al,
- R is CR′3 or SiR′3 where R′ is C1-20-alkyl, and
- n is 1 or 2,
- or dimers or oligomers thereof.
A process for preparing a catalyst by reduction of a precursor of a hydrogenation-active metal, which is present on an oxidic support, by reaction with at least one compound of the formula (I)
- HnM(OR)3−n (I)
- where
- M is Ga or Al,
- R is CR′3 or SiR′3 where R′ is C1-20-alkyl, and
- n is 1 or2,
- or dimers or oligomers thereof.
A process for preparing a catalyst by reduction of a precursor of a hydrogenation-active metal by reaction with at least one gaseous compound of the formula (I)
- HnM(OR)3−n (I)
- where
- M is Ga or Al,
- R is CR′3 or SiR′3 where R′ is C1-20-alkyl, and
- n is 1 or 2,
- or dimers or oligomers thereof at a temperature in the range of from 200 to 500° C.
Dependencies are inferred from the claim text.