US3293279A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of unsaturated nitriles by a catalytic process
Assignee: Eastman Kodak Co
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Filing: 1964-06-15
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Granted: 1966-12-20
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Expires: 1984-06-15
Abstract
No abstract record available.
Inventors
- 👤 Howard S Young
- 👤 Edgar L Mcdaniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:09
CPC Classifications
C; C07; C07C; C07C253/00; C07C253/24; C07C253/26; B; B01; B01J; B01J23/00; B01J23/16; B01J23/24; B01J23/28; B01J23/32; B01J23/34; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/88; B01J23/887; B01J23/8876; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A PROCESS FOR PREPARING ACRYLONITRILE OR METHACRYLONITRILE WHICH COMPRISES REACTING A MIXTURE CONTAINING PROPYLENE OR ISOBUTYLENE, RESPECTIVELY, AMMONIA AND OXYGEN; SAID MIXTURE CONTAINING ABOUT 0.1 TO ABOUT 5 MOLES OF AMMONIA AND ABOUT 0.1 TO ABOUT 5 MOLES OF OXYGEN PER MOLE OF SAID OLEFIN; IN THE VAPOR PHASE AT A TEMPERATURE OF ABOUT 300*C. TO TO ABOUT 600*C. IN THE PRESENCE OF A SOLID CALCINED CATALYST WHICH CONSISTS ESSENTIALLY OF (1) ABOUT 1 TO ABOUT 20 WEIGHT PERCENT OF ARSENIC OXIDE, CALCULATED AS AS2O5 AND (2) ABOUT 5 TO ABOUT 60 WEIGHT PERCENT MOLYBDOCERIC ACID SUPPORTED ON (3) ABOUT 30 TO ABOUT 94 WEIGHT PERCENT OF AN INTER CARRIER; THE AMOUNT OF MOLYBDOCERIC ACID BEING GREATER THAT THE AMOUNT OF ARSENIC OXIDE; SAID CATALYTIC MIXTURE HAVING BEEN CALCINED AT A TEMPERATURE OF ABOUT 200*C. TO ABOUT 600*C.
Claim 2
Dependent Claim
138 words
A PROCESS FOR PREPARING ACRYLONITRILE OR METHACRYLONITRILE WHICH COMPRISES REACTING A MIXTURE CONTAINING PROPYLENE OR ISOBUTYLENE, RESPECTIVELY, AMMONIA AND OXYGEN; SAID MIXTURE CONTAINING ABOUT 0.1 TO ABOUT 5 MOLES OF AMMONIA AND ABOUT 0.1 TO ABOUT 5 MOLES OF OXYGEN PER MOLE OF SAID OLEFIN; IN THE VAPOR PHASE AT A TEMPERATURE OF ABOUT 300*C. TO TO ABOUT 600*C. IN THE PRESENCE OF A SOLID CALCINED CATALYST WHICH CONSISTS ESSENTIALLY OF (1) ABOUT 1 TO ABOUT 20 WEIGHT PERCENT OF ARSENIC OXIDE, CALCULATED AS AS2O5 AND (2) ABOUT 5 TO ABOUT 60 WEIGHT PERCENT MOLYBDOCERIC ACID SUPPORTED ON (3) ABOUT 30 TO ABOUT 94 WEIGHT PERCENT OF AN INTER CARRIER; THE AMOUNT OF MOLYBDOCERIC ACID BEING GREATER THAT THE AMOUNT OF ARSENIC OXIDE; SAID CATALYTIC MIXTURE HAVING BEEN CALCINED AT A TEMPERATURE OF ABOUT 200*C. TO ABOUT 600*C.
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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) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |