Process for the continuous separation of maleic anhydride from p

Details Process for the continuous separation of maleic anhydride from p Process for the continuous separation of maleic anhydride from p

1980-03-14

1982-02-09

Ford, John M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D30760

Patent

active

043149464

ABSTRACT:
Process for the continuous separation of maleic acid anhydride from process gases from the catalytic oxidation of hydrocarbons, e.g., n-butane, in the steam phase. The process gases are treated with a solvent, which is a cycloaliphatic acid ester. Typically, the cycloaliphatic acid ester is a dialkyl ester, having 4 to 8 carbon atoms in each alkyl group, of hexahydrophthalic acid, tetrahydrophthalic acid, methyltetrahydrophthalic acid or methylhexahydrophthalic acid.

REFERENCES:
patent: 3891680 (1975-06-01), Katsumoto et al.

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