Method for producing methacrylic acid

Details Method for producing methacrylic acid Method for producing methacrylic acid

2005-11-29

2005-11-29

Richter, Johann (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acids and salts thereof

C562S523000, C562S531000, C562S598000

Reexamination Certificate

active

06969774

ABSTRACT:
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 (ΔT) exceeds 35° C., and two or more high temperature zones in which each ΔT is 15 to 35° C. are provided. According to this method, mathacrylic acid can be manufactured in higher yields.

REFERENCES:
patent: 4954650 (1990-09-01), Abe et al.
patent: 5206431 (1993-04-01), Hashiba et al.
patent: 441312 (1991-08-01), None
patent: 57-120547 (1982-07-01), None
patent: 7-10802 (1995-01-01), None
patent: 8-3093 (1996-01-01), None

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