Patent ID: 6110397
Filing Date: 2000-08-29
Classification: B01J,C01B,C08F,Y02E

Abstract:
A hydrogen catalyst powder made by the process comprising the steps of:a) mixing a hydrogen active polymer in a solvent medium to provide a polymer solution, said solvent capable of solvating said polymer, said polymer having a plurality of carbon--carbon double bondsb) adding a hydrogenation catalyst into said polymer solution, wherein said hydrogenation catalyst comprises;i) an insoluble noble metal catalyst for catalyzing the reaction between the organic polymer and hydrogen, andii) an inert support material for carrying said metal catalyst;c) agitating said polymer solution to form a solution suspension;d) forming said solution suspension into a plurality of droplets and introducing said droplets into a quantity of a cryogenic liquid thereby rapidly freezing said droplets;e) separating said frozen droplets from said liquid cryogen; andf) freeze-drying said frozen droplets at a temperature and a pressure chosen for sublimating said frozen solvent, said sublimation removing said solvent from said drops and thereby providing said hydrogen catalyst powder, said hydrogen catalyst powder capable of removing hydrogen at a rate of greater than about 10.sup.-3 std cc/g.sub.catalyst /sec at ambient pressures of hydrogen above about 200 torr.