Katalysatorer med höjt cobaltoverfladeareal

摘要

A method of making a catalyst precursor containing 20 to 85% by weight of total cobalt is described comprising slurrying a transition alumina powder having a pore volume above 0.7 ml/g with an aqueous solution of a cobalt ammine complex, heating the slurry to cause the cobalt ammine complex to decompose with the deposition of an insoluble cobalt compound, filtering the solid residue from the aqueous medium and drying the solid residue.