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Process for the preparation of unsaturated alphatic nitriles by the oxidation of olefins
Assignee: Societe Nationale des Petroles dAquitaine SA
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Filing: 1969-07-16
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Granted: 1972-07-18
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Expires: 1989-07-16
Abstract
Abstract A process for the preparation of unsaturated aliphatic nitriles by the oxidation of olefins in the presence of ammonia, consists in reacting the hydrocarbon or hydrocarbons with oxygen and ammonia in the presence of a catalyst system containing the elements phosphorus, vanadium and molybdenum in the form of a phosphovanadomolyboic heteropolyanion; a part or the whole of said elements may be combined with tellurium or antimony.
Inventors
- 👤 Philippe Reulet
- 👤 Alain Pfister
- 👤 Jacques Tellier
- 👤 Jean-Henry Blanc
- 👤 Kirsten Borre Jorgensen
- 👤 Hans Bohlbro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:22
CPC Classifications
C; C07; C07C; C07C253/00; C07C253/24; C07C253/26; B; B01; B01J; B01J27/00; B01J27/02; B01J27/057; B01J27/0576; B01J2523/00; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
26 words
A process according to claim 1, wherein at least a part of said heteropolyanion is ((NH4)16P2V16Mo14O95)m(TeH6O6)t in which the ratio t/m is from 0 to 30.
Claim 2
Dependent Claim
14 words
A process according to claim 2, wherein said ratio is from 12 to 18.
Claim 3
Dependent Claim
11 words
A process according to claim 2, wherein said ratio is 17.5.
Claim 4
Dependent Claim
35 words
A process according to claim 1, wherein a gaseous mixture comprising said propylene, oxygen and ammonia at a temperature from 300* to 600* C is contacted with said catalyst for from 0.15 to 15 seconds.
Claim 5
Dependent Claim
40 words
A process according to claim 5, wherein said gaseous mixture contains by volume, 1 to 15 percent of said propylene, 1 to 15 percent of ammonia and 2 to 14 percent of oxygen, the remainder being an inert gaseous medium.
Claim 6
Dependent Claim
13 words
A process according to claim 6, wherein said inert gaseous medium contains nitrogen.
Claim 7
Dependent Claim
14 words
A process according to claim 6, wherein said inert gaseous medium contains water vapor.
Claim 8
Dependent Claim
29 words
A process according to claim 6, wherein said gaseous mixture at a temperature from 350* to 450* C, is contacted with said catalyst for from 1.5 to 8 seconds.
Claim 9
Dependent Claim
41 words
A process according to claim 1, wherein said catalyst is supported on silica, said supported catalyst has been calcined at a temperature between 400*-500* C., and wherein from 75 to 25 percent by weight of said supported catalyst is said heteropolyanion.
Claim 10
Dependent Claim
27 words
A process according to claim 10, wherein said catalyst contains by weight, 35 percent of phosphovanadomolybdic heteropolyanion, 35 percent of telluric acid and 30 percent of silica.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |