Compositions – Preservative agents – Anti-oxidants or chemical change inhibitants
Patent
1975-11-21
1977-11-01
Garvin, Patrick P.
Compositions
Preservative agents
Anti-oxidants or chemical change inhibitants
252441, 423596, B01J 2300, B01J 2706, C01G 3714
Patent
active
040564908
ABSTRACT:
Magnesium chromite dehydrogenation catalyst are improved by preparation in oxygen deficient or essentially inert calcination atmospheres and in the presense of halogen, either singularly or in combination.
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patent: 2205141 (1940-06-01), Heard
patent: 2209458 (1940-07-01), Heard et al.
patent: 2638455 (1953-05-01), Pitzer
patent: 3781376 (1973-12-01), Manning
patent: 3801672 (1974-04-01), Bajars
Mellor Comprehensive Treatise on Inorganic and Theoretical Chemistry, vol. XI, p. 199, (1931).
Garvin Patrick P.
Johnson Kenneth H.
Petro-Tex Chemical Corporation
Wright William G.
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