Patent US3308151A successfully refreshed from Google Patents.
US3308151A
Expired / Lapsed
US
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Process for the oxidation of olefinammonia mixtures to unsaturated nitriles
Assignee: Standard Oil Co
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Filing: 1965-01-11
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Granted: 1967-03-07
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Expires: 1985-01-11
Abstract
No abstract record available.
Inventors
- 👤 James L Callahan
- 👤 Gertisser Berthold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:15
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/16; G06G7/163; B; B01; B01J; B01J23/00; B01J23/16; B01J23/18; C; C07; C07C; C07C45/00; C07C45/27; C07C45/32; C07C45/33; C07C45/34; C07C45/35; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
A PROCESS FOR THE OXIDATION OF PROPYLENE AND ISOBUTYLENE TO FORM ACRYLONITRILE AND METHACRYLONITRILE, RESPECTIVELY, WHICH COMPRISES THE STEP OF CONTACTING IN THE VAPOR PHASE AT A TEMPERATURE WITHIN THE RANGE FROM ABOUT 550 TO ABOUT 1100*F. A MIXTURE OF AMMONIA, OXYGEN AND AN OLEFIN SELECTED FROM THE GROUP CONSISTING OF PROPYLENE, ISOBUTYLENE, AND MIXTURES THEREOF IN A MOLAR RATIO OF OLEFIN TO AMMONIA OF FROM ABOUT 1:0.05 TO ABOUT 1:5, AND A MOLAR RATIO OF OXYGEN TO OLEFIN WITHIN THE RANGE FROM ABOUT 0.5:1 TO ABOUT 4:1, IN THE PRESENCE OF A CATALYST COMPOSITION CONSISTING ESSENTIALLY OF AN ACTIVE CATALYTIC OXIDE COMPLEX OF ANTIMONY AND URANIUM AS AN ESSENTIAL CATALYTIC INGREDIENT, THE SB:U ATOMIC RATIO BEING WITHIN THE RANGE FROM ABOUT 1:50 TO ABOUT 99:1, SAID COMPLEX BEING FORMED BY HEATING THE MIXED OXIDES OF ANTIMONY AND URANIUM IN THE PRESENCE OF OXYGEN AT AN ELEVATED TEMPERATURE OF ABOVE 500*F. BUT BELOW THEIR MELTING POINT FOR A TIME SUFFICIENT TO FORM SAID ACTIVE CATALYTIC OXIDE COMPLEX OF ANTIMONY AND URANIUM.
Claim 2
Dependent Claim
171 words
A PROCESS FOR THE OXIDATION OF PROPYLENE AND ISOBUTYLENE TO FORM ACRYLONITRILE AND METHACRYLONITRILE, RESPECTIVELY, WHICH COMPRISES THE STEP OF CONTACTING IN THE VAPOR PHASE AT A TEMPERATURE WITHIN THE RANGE FROM ABOUT 550 TO ABOUT 1100*F. A MIXTURE OF AMMONIA, OXYGEN AND AN OLEFIN SELECTED FROM THE GROUP CONSISTING OF PROPYLENE, ISOBUTYLENE, AND MIXTURES THEREOF IN A MOLAR RATIO OF OLEFIN TO AMMONIA OF FROM ABOUT 1:0.05 TO ABOUT 1:5, AND A MOLAR RATIO OF OXYGEN TO OLEFIN WITHIN THE RANGE FROM ABOUT 0.5:1 TO ABOUT 4:1, IN THE PRESENCE OF A CATALYST COMPOSITION CONSISTING ESSENTIALLY OF AN ACTIVE CATALYTIC OXIDE COMPLEX OF ANTIMONY AND URANIUM AS AN ESSENTIAL CATALYTIC INGREDIENT, THE SB:U ATOMIC RATIO BEING WITHIN THE RANGE FROM ABOUT 1:50 TO ABOUT 99:1, SAID COMPLEX BEING FORMED BY HEATING THE MIXED OXIDES OF ANTIMONY AND URANIUM IN THE PRESENCE OF OXYGEN AT AN ELEVATED TEMPERATURE OF ABOVE 500*F. BUT BELOW THEIR MELTING POINT FOR A TIME SUFFICIENT TO FORM SAID ACTIVE CATALYTIC OXIDE COMPLEX OF ANTIMONY AND URANIUM.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |