METHOD FOR THE PRODUCTION OF COBALT CATALYSTS SUPPORTED ON SILICON DIOXIDE AND THEIR USE

摘要

The invention relates to catalysts comprising cobalt supported on a solid silica support and in particular to a method for manufacturing such catalysts. The catalysts may be prepared by slurrying a silica powder or impregnating a silica particle with a solution of a cobalt compound, cobalt amine carbonate, and ageing the resulting slurry or solid at elevated temperature; the cobalt amine carbonate is decomposed and precipitated as basic cobalt carbonate onto the silica support. Preferably the catalysts have a cobalt surface area in the range of 25 to >100 m2 per gram total cobalt. The catalyst may be used in hydrogenation reactions, Fischer-Tropsch reactions and oxidation reactions.