Process for the ammoxidation of alkanes and olefins

Details Process for the ammoxidation of alkanes and olefins Process for the ammoxidation of alkanes and olefins

2007-03-06

2007-03-06

Saeed, Kamal A. (Department: 1626)

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Metal, metal oxide or metal hydroxide

Reexamination Certificate

active

10955550

ABSTRACT:
A process for the vapor phase ammoxidation of alkanes and olefins with a catalyst of the general empirical formula:in-line-formulae description="In-line Formulae" end="lead"?VSbaMbQcOxin-line-formulae description="In-line Formulae" end="tail"?wherein M is at least one element selected from magnesium, aluminum, zirconium, silicon, hafnium, titanium and niobium, Q is at least one element selected from rhenium, tungsten, molybdenum, tantalum, manganese, phosphorus, cerium, tin, boron, scandium, bismuth, gallium, indium, iron, chromium, lanthanum, yttrium, zinc, cobalt, nickel, cadmium, copper, strontium, barium, calcium, silver, potassium, sodium and cesium, a is 0.5 to 20, b is 2 to 50, c is 0 to 10 and x is determined by the valence requirements of the elements present. The process has a co-feed of gaseous carbon dioxide with an alkane (paraffin) and/or alkene, ammonia and an oxygen-containing gas which react in the presence of the catalyst to form a nitrile and by-products.

REFERENCES:
patent: 6710011 (2004-03-01), Mamedov et al.

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