Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof
Patent
1994-03-11
1995-08-15
Killos, Paul J.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acids and salts thereof
562535, C07C 5116
Patent
active
054421080
ABSTRACT:
A process for removal of solid organic matters formed and deposited in the reaction system when an unsaturated aldehyde or an unsaturated aidehyde-containing gas is subjected to catalytic gaseous oxidation in the presence of an oxidizing catalyst to prepare an unsaturated carboxylic acid corresponding thereto, which process comprises contacting the solid organic matters with a mixed gas containing at least 3 volume % of molecular oxygen and at least 0.1 volume % of steam at a temperature of 260.degree. to 450.degree. C.
REFERENCES:
patent: 3755202 (1973-08-01), Katsobashvili et al.
patent: 4751210 (1988-06-01), de Agudelo et al.
patent: 4942258 (1990-07-01), Smith
Hironaka Hideyuki
Kawajiri Tatsuya
Kudoh Tsuyoshi
Tanimoto Michio
Uekawa Kazuyuki
Killos Paul J.
Nippon Shokubai Co. , Ltd.
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