Process for preparation of methacrylic acid with regeneration of

Details Process for preparation of methacrylic acid with regeneration of Process for preparation of methacrylic acid with regeneration of

1988-04-12

1990-07-17

Garner, Vivian

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

Organic compounds

Carboxylic acids and salts thereof

502 38, 502 49, 502 52, C07C 51353, C07C 5704

Patent

active

049422588

ABSTRACT:
Process is disclosed for regeneration of a solid methacrylic acid catalyst wherein said catalyst is decoked in the presence of an oxygen-containing gas at an initial temperature no greater than 650.degree. F. and then by increasing the temperature incrementally to complete the regeneration at a temperature of from about 650.degree. F. to 800.degree. F.

REFERENCES:
patent: 1678626 (1928-07-01), Jaeger
patent: 2162893 (1939-06-01), Kuhl
patent: 2198195 (1940-04-01), Groll et al.
patent: 2641582 (1952-06-01), Haensel
patent: 3051747 (1962-08-01), Leathers et al.
patent: 3933888 (1976-01-01), Schlaefer

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