Catalyst containing cobalt

Details Catalyst containing cobalt Catalyst containing cobalt

B - Operations, Transporting

01

J

252/69, 260/678.

B01J 23/74 (2006.01) B01J 23/75 (2006.01) B01J 23/86 (2006.01) B01J 23/89 (2006.01) C07C 1/04 (2006.01)

Patent

CA 1256090

A B S T R A C T Process for the preparation of catalysts comprising cobalt supported on a carrier. Cobalt is distributed over the carrier in such a manner as to satisfy the relation Image 0.55 by immersing a porous carrier once or several times in a solution of a cobalt compound, removing the liquid from the composition after each immer- sion and finally calcining and activating the composition. During each immersion the following relation between the viscosity measured at 60°C (v in cS) and the temperature (T in °K) of the solution, and the immersion time (t in s) is satisfied: Image 104 ? 1. .SIGMA.Vc represents the total volume of the catalyst particles under consideration and that .SIGMA.Vp is found by adding up the peel volumes present in the catalyst particles, the latter being regarded as being composed of a kernel surrounded by a peel, which kernel is of such a shape that at every point of the kernel perimeter the shortest distance (d) to the perimeter of the peel is the same, d being equal for all catalyst particles under consideration, and having been chosen such that the quantity of cobalt present in .SIGMA.Vp is 90% of the quantity of cobalt present in .SIGMA.Vc.

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