Nickel/alumina/silicate catalyst, its preparation and use

Details Nickel/alumina/silicate catalyst, its preparation and use Nickel/alumina/silicate catalyst, its preparation and use

1986-09-17

1987-07-28

Warren, Charles F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260690, 564490, 502235, 502259, 558467, B01J 2112, B01J 2374, C11C 312, C07C 8512

Patent

active

046830880

ABSTRACT:
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.

REFERENCES:
patent: 2645620 (1953-07-01), Paterson
patent: 2921971 (1960-01-01), Holm et al.
patent: 2926207 (1960-02-01), Folkins et al.
patent: 3320182 (1967-05-01), Taylor et al.
patent: 3759843 (1973-09-01), Holscher et al.

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