Chemistry of inorganic compounds – Oxygen or compound thereof – Metal containing
Patent
1986-12-15
1988-04-12
Pal, Asok
Chemistry of inorganic compounds
Oxygen or compound thereof
Metal containing
2521881, 25218825, 423407, 423594, 423595, 423596, 423599, 423600, 502524, 502525, C01F 100
Patent
active
047373555
ABSTRACT:
Disclosed is making an inorganic crystalline vanadium III oxidic compound from a pentavalent vanadium compound, which process comprises (1) reducing a pentavalent vanadium oxidic compound to substantially the V.sup.III state by heating at 100.degree. C. or less an aqueous medium slurry or solution of said pentavalent compound containing a reducing agent selected from hydrazine and hydrocarbylhydrazine, (2) providing in said aqueous medium, either before, during or after said reducing step, other metal cations in solution in the ratio called for by the desired crystalline compound, (3) removing the liquid aqueous medium, and (4) calcining the resulting dry solid at a temperature in the range from 400.degree. to 800.degree. C. in an inert atmosphere.
Also disclosed is the vapor phase catalytic dehydrogenation of paraffins using certain spinels and perovskites as catalysts.
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Brazdil James F.
Grasselli Robert K.
Guttmann Andrew T.
Evans Larry W.
Lynch Charles S.
Miller John F.
Pal Asok
The Standard Oil Company
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