Method of producing maleic anhydride

Details Method of producing maleic anhydride Method of producing maleic anhydride

1976-12-23

1978-11-28

Jiles, Henry R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

252437, C07D30760

Patent

active

041275918

ABSTRACT:
A method of producing maleic anhydride by oxidizing a hydrocarbon material selected from unsaturated hydrocarbons having four or more of carbon atoms, butane and mixtures thereof with molecular oxygen or a molecular oxygen containing gas in gaseous phase and in the presence of a catalyst. The catalyst used in this method is of the type which contains vanadium, phosphorus, potassium and iron, and these components are contained in the following ratios per atom of vanadium: phosphorus, 2/3 to 140 atoms; potassium, 1/4 to 2 atoms; and iron, 1/10 to 70 atoms. Preferably the atomic ratio of phosphorus/iron is greater than 1.

REFERENCES:
patent: 3156706 (1964-11-01), Kerr
patent: 3888886 (1975-06-01), Young et al.
patent: 3977998 (1976-08-01), Freerks et al.

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