C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 307/60 (2006.01) B01J 12/00 (2006.01) B01J 19/00 (2006.01) C07C 17/156 (2006.01) C07C 45/34 (2006.01) C07C 45/35 (2006.01) C07C 47/07 (2006.01) C07C 47/22 (2006.01) C07C 51/215 (2006.01) C07C 51/25 (2006.01) C07C 51/31 (2006.01) C07C 57/05 (2006.01) C07C 253/24 (2006.01) C07C 255/08 (2006.01) C07D 301/08 (2006.01) C07D 307/89 (2006.01)
Patent
CA 2054147
ABSTRACT OF THE DISCLOSURE A hydrocarbon derivative is produced by the vapour phase reaction of a hydrocarbon with substantially pure oxygen in the presence of a suitable catalyst in a reactor 2. The product is removed in a scrubber 8, carbon monoxide, present in the reactor effluent as a by-product, is oxidised to carbon dioxide in a converter 16 and part of the gaseous effluent, comprising mainly carbon dioxide and unreacted hydrocarbon, is recycled to the reactor 2. Removal of carbon monoxide from the recycle stream reduces the hazard of a fire or explosion in the reactor or associated equipment. The use of carbon dioxide as the principal diluent increases heat removal from the reactor, thereby increasing the production capacity of the reactor. If the hydrocarbon is benzene or a straight chain C4 hydrocarbon, e.g. butane, the product is maleic anhydride. If the hydrocarbon is o-xylene the product is phthalic anhydride. Other derivatives such as acetaldehyde, acrolein, acrylonitrile, methacrylonitrile, acrylic acid, vinyl chloride, and propylene oxide may alternatively be produced by appropriate selection of reactants and catalysts.
Ramachandran Ramakrishnan
Sheu Lien-Lung
Shirley Arthur I.
Gowling Lafleur Henderson Llp
Ramachandran Ramakrishnan
Sheu Lien-Lung
Shirley Arthur I.
The Boc Group Inc.
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