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

B - Operations, Transporting

01

J

252/78, 260/609.

B01J 23/74 (2006.01) B01J 23/755 (2006.01) B01J 35/10 (2006.01) C11C 3/12 (2006.01) B01J 35/00 (2006.01)

Patent

CA 1246534

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 m2/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.

484637

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