Unilever Patent Holdings B.v.

Internationale Octrooi Maatschappij 'octropa' Bv

Internationale Octrooi Maatschappij

Internationale Octrooi Maatschappij 'octropa' P.b.v.

Peter Nootenboom

Keshab L Ganguli

Johannes C Oudejans

Cornelis M Lok

Dirk Verzijl

Keshab Ganguli

Cornelis Lok

Martha J Botman

Cornelis K Lok

Cornelis M Lox

The invention provides a nickel/silica catalyst optionally also containing cations of a lower Group II metal (X), which catalyst satisfies the following combination of features:

Nickel/silica catalysts and their preparation

The invention provides a nickel/alumina catalyst, with an atomic ratio of nickel/aluminium between 10 and 2, an active nickel surface area between 70 and 150 m.sup.2 /g nickel and an average pore size, depending on the above atomic ratio, between 4 and 20 nanometers. Preferably the nickel/aluminium atomic ratio is between 10 and 4. Preferably the catalyst has a specific porous structure. The invention also provides a method for preparing the catalyst by a two step process involving precipitating nickel ions and adding during a second, so-called ageing step a soluble aluminium compound. The catalyst is useful for hydrogenating unsaturated organic compounds in particular oils.

Nickel/alumina catalyst, its preparation and use

The invention provides a nickel/alumina catalyst, with an atomic ratio of nickel/aluminum between 10 and 2, an active nickel surface area between 70 and 150 m.sup.2 /g nickel and an average pore size, depending on the above atomic ratio, between 4 and 20 nanometers. Preferably the nickel/aluminum atomic ratio is between 10 and 4. Preferably the catalyst has a specific porous structure. The invention also provides a method for preparing the catalyst by a two step process involving precipitating nickel ions and adding during a second, so-called aging step a soluble aluminum compound. The catalyst is useful for hydrogenating unsaturated organic compounds in particular oils.

Nickel/alumina catalyst

The invention provides a nickel/alumina/silicate catalyst, with an atomic ratio of nickel/aluminium between 20 and 2, a nickel/silicate ratio between 20 and 1, an active nickel surface area between 70 and 150 m.sup.2 /g nickel and an average pore size, depending on the above atomic ratio, between 4 and 20 nanometers. Preferably the nickel/aluminium atomic ratio is between 10 and 4 and the nickel/silicate ratio between 12 and 3. Preferably the catalyst has a specific porous structure. The invention also provides a method for preparing the catalyst by a two step process involving precipitating nickel ions and adding during a second, so-called ageing step a soluble aluminium compound and optionally the silicate. The silicate is preferably added during a second ageing step. The catalyst is useful for hydrogenating unsaturated organic compounds in particular oils.

Nickel/alumina/silicate catalyst, its preparation and use

A nickel/alumina catalyst, with an atomic ratio of nickel/aluminum between 10 and 2, an active nickel surface area between 70 and 150 m.sup.2 /g nickel and an average pore size, depending on the above atomic ratio, between 4 and 20 nanometers. Preferably the catalyst has a specific porous structure and the nickel/aluminum atomic ratio is between 10 and 4. A method is also disclosed for preparing the catalyst by a two step process involving precipitating nickel ions and adding during a second, so-called ageing step, a soluble aluminum compound. The catalyst is useful for hydrogenating unsaturated organic compounds in particular oils.

Nickel/alumina catalyst and process for its preparation

The invention provides a nickel/alumina/silicate catalyst, with an atomic ratio of nickel/aluminium between 20 and 2, a nickel/silicate ratio between 20 and 1, an active nickel surface area between 70 and 150 m.sup.2 /g nickel and an average pore size, depending on the above atomic ratio, between 4 and 20 nanometers. Preferably the nickel/aluminium atomic ratio is between 10 and 4 and the nickel/silicate ratio between 12 and 3. Preferably the catalyst has a specific porous structure. The invention also provides a method for preparing the catalyst by a two step process involving precipitating nickel ions and adding during a second, so-called aging step a soluble aluminium compound and optionally the silicate. The silicate is preferably added during a second aging step. The catalyst is useful for hydrogenating unsaturated organic compounds in particular oils.

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Oud-Beyerland, Netherlands

Peter Nootenboom