Process for obtaining maleic acid anhydride

Details Process for obtaining maleic acid anhydride Process for obtaining maleic acid anhydride

1977-04-12

1980-03-04

Rotman, Alan L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D30760

Patent

active

041916956

ABSTRACT:
A process for obtaining maleic acid anhydride from an aqueous maleic acid solution obtained from the gas phase oxidation of at least one organic compound having at least 4 carbon atoms by washing out the reaction gases with water, characterized in that a H.sub.2 O exchange is carried out between maleic acid and an organic carboxylic acid anhydride.

REFERENCES:
patent: 2166556 (1939-07-01), Spence et al.
patent: 2250091 (1941-07-01), Campbell et al.
patent: 2340490 (1944-02-01), Porter
Wagner et al., Synthetic Organic Chem., N.Y.-Wiley & Sons (1952) pp. 558-559.
Beilstein, Berlin-Springer Verlag (1975) p. 5912.
Mason, J. Chem. Soc., 1930, pp. 700-701.

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