Manufacture of catalyst supports

C - Chemistry – Metallurgy – 22 – C

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C22C 19/05 (2006.01) B01J 23/88 (2006.01) B01J 35/04 (2006.01) C01B 21/38 (2006.01)

Patent

CA 1298577

ABSTRACT OF THE DISCLOSURE Disclosed herein is an improved chemical reactor apparatus of the type suitable for supporting a catalyst during the high temperature oxidation of ammonia to form nitric acid which is fabricated from a superior nickel base superalloy containing about: 20 to 24% chromium, 10 to 20% tungsten, 1.0 to 3.5% molybdenum, 0.3 to 1% manganese, 0.2 to 0.75% silicon, and up to 20% cobalt and in which certain relationships among these alloying elements provide a structure which has very high creep strength and resistance to the corrosive environment.

544940

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