US3262962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic synthesis of acrylonitrile from olefins, ammonia and oxygen
Assignee: Eastman Kodak Co
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Filing: 1961-01-23
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Granted: 1966-07-26
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Expires: 1981-01-23
Abstract
No abstract record available.
Inventors
- 👤 Edgar L Mcdaniel
- 👤 Howard S Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:54
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/16; B01J23/24; B01J23/31; C; C07; C07C; C07C253/00; C07C253/24; C07C253/26; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A PROCESS FOR PREPARING A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ACRYLONITRILE AND ACETONITRILE WHICH COMPRISES REACTING A MIXTURE COMPRISING PROPYLENE, AMMONIA AND OXYGEN IN THE PROPORTIONS OF FROM 0.05-10.0 MOLES OF THE AMMONIA AND FROM 0.05-10.0 MOLES OF THE OXYGEN TO EACH MOLE OF THE PROPYLENE, IN VAPOR PHASE AT FROM 300-600*C., IN THE PRESENCE OF A CATALYST CONSISTING ESSENTIALLY OF THE PRODUCT OF THE CALCINATION OF A MIXTURE OF BISMUTH NITRATE AND A HETEROPOLY ACID COMPONENT SELECTED FROM THE GROUP CONSISTING OF DODECAMOLYBDOCERIC ACID AND AMMONIUM DODECAMOLYBDOCERATE, AND MIXTURES THEREOF, WHEREIN THE CONCENTRATION OF THE BISMUTH COMPONENT IS ABOUT 3% TO 75% BY WEIGHT OF THE CATALYST AND WHEREIN THE CONCENTRATION OF THE SAID HETEROPOLY ACID COMPONENT IS ABOUT 3% TO 75% BY WEIGHT OF THE CATALYST AND THEREAFTER SEPARATING THE NITRILE PRODUCTS.
Claim 2
Dependent Claim
136 words
A PROCESS FOR PREPARING A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ACRYLONITRILE AND ACETONITRILE WHICH COMPRISES REACTING A MIXTURE COMPRISING PROPYLENE, AMMONIA AND OXYGEN IN THE PROPORTIONS OF FROM 0.05-10.0 MOLES OF THE AMMONIA AND FROM 0.05-10.0 MOLES OF THE OXYGEN TO EACH MOLE OF THE PROPYLENE, IN VAPOR PHASE AT FROM 300-600*C., IN THE PRESENCE OF A CATALYST CONSISTING ESSENTIALLY OF THE PRODUCT OF THE CALCINATION OF A MIXTURE OF BISMUTH NITRATE AND A HETEROPOLY ACID COMPONENT SELECTED FROM THE GROUP CONSISTING OF DODECAMOLYBDOCERIC ACID AND AMMONIUM DODECAMOLYBDOCERATE, AND MIXTURES THEREOF, WHEREIN THE CONCENTRATION OF THE BISMUTH COMPONENT IS ABOUT 3% TO 75% BY WEIGHT OF THE CATALYST AND WHEREIN THE CONCENTRATION OF THE SAID HETEROPOLY ACID COMPONENT IS ABOUT 3% TO 75% BY WEIGHT OF THE CATALYST AND THEREAFTER SEPARATING THE NITRILE PRODUCTS.
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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) | 1969-07-25 | 1970-01-24 | 1970-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-25 | 1974-01-24 | 1974-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-25 | 1978-01-24 | 1978-07-26 | $7700.00 | Window Closed / Lapsed |