Continuous process for the production of maleic anhydride from a

Details Continuous process for the production of maleic anhydride from a Continuous process for the production of maleic anhydride from a

1990-01-12

1992-05-26

Dentz, Bernard

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549260, C07D30760

Patent

active

051170078

ABSTRACT:
A continuous process is disclosed for the production of maleic anhydride by the partial oxidation of a hydrocarbon feedstock comprising n-butane in a concentration of at least 1.6 mole percent wherein a mixture of the feedstock and an oxidizing medium is contacted with a vanadium-phosphorus-oxygen catalyst wherein a solution of water and an alkyl ester of orthophosphoric acid is continually added to said feedstock, wherein ratio of water to elemental phosphorus in said alkyl ester is in the range of from about 6500:1 wt. to about 50,000:1 wt., water to phosphorus, and the differences in reaction temperature throughout the entire reaction zone is less than about 45.degree. C. (80.degree. F.).

REFERENCES:
patent: 4515899 (1985-05-01), Click et al.
patent: 4701433 (1987-10-01), Edwards

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