Impregnating a noble metal on the surface of a refractory...

Details Impregnating a noble metal on the surface of a refractory... Impregnating a noble metal on the surface of a refractory...

B - Operations, Transporting

01

J

252/53.B, 260/70

B01J 23/40 (2006.01) B01J 23/62 (2006.01) B01J 23/656 (2006.01) C07C 5/333 (2006.01)

Patent

CA 1205445

Abstract of the Disclosure Platinum or other noble metals can be deposited substantially on the surface only of pellets of a refractory catalyst support by impregnation with an aqueous solution of such as hexammonium platinum tetrasulfite. The resulting catalysts contain relatively small total amounts of noble metal positioned primarily at the surface, yet are as highly active as catalysts uniformly impregnated throughout the body of the pellet and containing much larger amounts of noble metal.

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