Method for producing methacrylic acid

In a method for synthesizing methacrylic acid by using a fixed bed tube type reactor provided with a catalyst bed into which a solid oxidation catalyst is filled and with a heat medium bath and by flowing a raw material gas containing methacrolein and oxygen through the catalyst bed, the catalyst be...

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Bibliographic Details
Main Authors Oh-Kita, Motomu, Watanabe, Seigo
Format Patent
LanguageEnglish
Published 02.01.2003
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Summary:In a method for synthesizing methacrylic acid by using a fixed bed tube type reactor provided with a catalyst bed into which a solid oxidation catalyst is filled and with a heat medium bath and by flowing a raw material gas containing methacrolein and oxygen through the catalyst bed, the catalyst bed does not have any sections in which a temperature difference between the heat medium bath and the catalyst bed ( T) exceeds 35° C., and two or more high temperature zones in which each T is 15 to 35° C. are provided. According to this method, mathacrylic acid can be manufactured in higher yields.