METHOD FOR PRODUCING (METH)ACROLEIN AND METHOD FOR PRODUCING (METH)ACRYLIC ACID

A method for producing (meth)acrolein by vapor-phase catalytic oxidation of propylene or isobutylene in a multitubular reactor including a plurality of reaction tubes, the reaction tubes each including a reaction zone filled with a catalyst including molybdenum oxide and a cooling zone filled with a...

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Bibliographische Detailangaben
Hauptverfasser:	NAKAMURA, Takuya, ABE, Yoshimune, OGAWA, Yasushi
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS APPARATUS THEREFOR CHEMISTRY GENERAL METHODS OF ORGANIC CHEMISTRY METALLURGY ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:	A method for producing (meth)acrolein by vapor-phase catalytic oxidation of propylene or isobutylene in a multitubular reactor including a plurality of reaction tubes, the reaction tubes each including a reaction zone filled with a catalyst including molybdenum oxide and a cooling zone filled with an inert substance, wherein a temperature of a heat medium that flows outside the cooling zone is lower than a temperature of a heat medium that flows outside the reaction zone, and wherein the inert substance includes an inert substance having a major-axis length that is equal to or more than 1.7 times a major-axis length of the catalyst. A method for producing (meth)acrylic acid in which (meth)acrolein thus produced is converted to (meth)acrylic acid by vapor-phase catalytic oxidation.