Method for improving the performance of VPO catalysts

Details Method for improving the performance of VPO catalysts Method for improving the performance of VPO catalysts

1992-02-18

1993-02-09

Tsang, Cecilia

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549262, 549258, C07D30734, C07D30736

Patent

active

051854554

ABSTRACT:
An improvement in a process for the manufacture of maleic anhydride by catalytic oxidation of n-butane in the presence of trimethyl phosphate over a fixed bed vanadium phosphorus oxide catalyst in a tubular reactor. The trimethyl phosphate content of the gas entering the reactor within a range of between about (0.9) N and about (1.1) N where N is a normative concentration of trimethyl phosphate in ppm as determined by the following relationship:

REFERENCES:
patent: 3474041 (1969-10-01), Kerr
patent: 4515899 (1985-05-01), Click et al.
patent: 4701433 (1987-10-01), Edwards
patent: 4810803 (1989-03-01), Edwards

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