Compositions – Preservative agents – Anti-oxidants or chemical change inhibitants
Patent
1977-04-06
1979-01-02
Konopka, P. E.
Compositions
Preservative agents
Anti-oxidants or chemical change inhibitants
208143, 252428, 252477R, 260666A, 260677H, 2606839, 260690, 427404, 427447, B01J 3128, B01J 3106, C07C 516
Patent
active
041326687
ABSTRACT:
The invention is related to a method of preparing a hydrogen-permeable membrane catalyst on a base of palladium or its alloys for the hydrogenation of unsaturated organic compounds.
According to the invention the surface of a metalloceramic sheet on a base of nickel, copper or stainless steel with a thickness from 0.05 to 1 mm is covered with an organosilicon polymer which is subsequently cured at a temperature ranging from 20 to 150.degree. C.
The curing results in the formation of a film of the organosilicon polymer with a thickness from 0.01 to 1 mm, whereupon a layer of palladium or its alloy with a thickness from 0.001 to 0.1 micron is deposited on the polymer film.
The method of the invention allows decreasing by hundreds of times the consumption of palladium, and other noble metals such as ruthenium, rhodium, rhenium, silver, and gold.
REFERENCES:
patent: 2722504 (1955-11-01), Fleck
patent: 3949011 (1976-04-01), Smirnov et al.
patent: 3950447 (1976-04-01), Gryaznov
patent: 3965210 (1976-06-01), Chu
patent: 3981976 (1976-09-01), Stevens
Ermilova Margarita M.
Gogua Lia D.
Gryaznov Vladimir M.
Litvinov Igor A.
Pritula Nina A.
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