Preparation and recovery of methacrylic acid and its esters

Details Preparation and recovery of methacrylic acid and its esters Preparation and recovery of methacrylic acid and its esters

1982-04-19

1986-07-15

Garner, Vivian

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

Organic compounds

Carboxylic acids and salts thereof

560214, 560218, 562600, C07C 51377, C07C 5150, C07C 57075, C07C 67317, C07C 6762, C07C 6954

Patent

active

046007954

ABSTRACT:
In the recovery and purification of methacrylic acid or its esters produced by the vapor phase catalytic oxydehydrogenation of isobutyric acid or its esters the problem of downstream plugging is avoided by the inclusion of a small amount of surfactant in the gaseous effluent at or near the point of its condensation.

REFERENCES:
patent: 3658895 (1972-04-01), Riemann et al.
patent: 4182907 (1980-01-01), Grasselli et al.

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