Process for the transformation of a vanadium/phosphorus mixed ox

Details Process for the transformation of a vanadium/phosphorus mixed ox Process for the transformation of a vanadium/phosphorus mixed ox

1997-04-28

1998-12-08

Owens, Amelia

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

502209, C07D30760, B01J 2718

Patent

active

058471634

ABSTRACT:
A vanadium/phosphorus mixed oxide catalyst precursor is transformed into the active catalyst for the production of maleic anhydride. The activation takes place in a fluidized bed and includes the steps of (a) initially heating the precursor; (b) further heating under superatmospheric pressure; (c) isothermal stage at superatmospheric pressure; and, finally, (d) cooling the activated catalyst obtained. Catalysts activated according to this procedure show high performance in the conversion of non-aromatic hydrocarbons to maleic anhydride.

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Rompp Chemie Lexikon, 9.sup.th Edition, Georg Thieme Verlag, Stuttgart, vol. 4, p. 3285.

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