Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Phosphorus or compound containing same
Patent
1986-04-07
1988-03-22
Sneed, Helen M. S.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Phosphorus or compound containing same
502162, 502172, 502210, 502211, 502212, 502213, 423305, 423306, 549258, B01J 27198, B01J 3100, B01J 27188, B01J 2719
Patent
active
047328851
ABSTRACT:
A process for the manufacture of novel phosphorus-vanadium and phosphorus-vanadium cometal catalysts having a characteristic X-ray diffraction pattern suitable for use in the manufacture of maleic anhydride from butane and other C.sub.4 hydrocarbon feedstocks which process comprises reacting at a temperature of about 0.degree. C. to about 200.degree. C. a vanadium compound in an organic ether solvent having about 2 to about 10 carbon atoms with a phosphoryl halide in the presence of water or an aliphatic alcohol having from about 1 to about 8 carbon atoms, eliminating the solvent, and activating the catalyst by the addition of the hydrocarbon feedstock and water and a phosphorus compound at a temperature of about 300.degree. C. to about 500.degree. C. wherein the amount of water added is about 1,000 parts per million to about 40,000 parts per million by weight of the reactor feed gas stream is disclosed. The catalysts are useful for the manufacture of maleic anhydride from butane and other C.sub.4 hydrocarbon feedstocks.
REFERENCES:
patent: 3296282 (1967-01-01), Kerr
patent: 4283288 (1981-08-01), Udovich et al.
patent: 4392986 (1983-07-01), Yang et al.
patent: 4472527 (1984-09-01), Otake et al.
patent: 4515899 (1985-05-01), Click et al.
Edwards Robert C.
Meyers Bernard L.
Amoco Corporation
Blumberg Gunar J.
Hooper Matthew R.
Magidson William H.
Sneed Helen M. S.
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