Mixed V/Sb/Sn oxide ammoxidation catalysts
US5686381A · kind A · utility
8Cited by
2References
17Claims
0Family size
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Key dates
| Filing date | Jun 23, 1995 |
| Grant date | Nov 11, 1997 |
| Priority date | — |
| Expiry date | Jun 23, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2002/72
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Vanadium/antimony/tin mixed oxides having the empirical formula (I): EQU VSb.sub.a Sn.sub.b O.sub.x (I) exhibit an X-ray diffraction pattern characteristic of a crystallographic phase of rutile SnO.sub.2, are well suited as catalysts for the vapor phase ammoxidation of alkanes, and are conveniently prepared by (a) dissolving respective compounds of vanadium, antimony and tin in at least one saturated alcohol, (b) intimately contacting the alcoholic solution thus obtained with an aqueous solution containing an ammonium salt, thus precipitating the mixed oxides therefrom, and (c) separating and calcining these mixed oxides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.