US2520181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of preparing amines and nitriles from ammonia and olefins
Assignee: Sinclair Refining Co
•
Filing: 1946-08-31
•
Granted: 1950-08-29
•
Expires: 1966-08-31
Abstract
No abstract record available.
Inventors
- 👤 John W Teter
- 👤 Leonard E Olson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:05
CPC Classifications
C; C07; C07C; C07C209/00; C07C209/60; B; B01; B01J; B01J23/00; B01J23/70; C07C253/00; C07C253/18; B01J37/00; B01J37/02; B01J37/0201
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
54 words
A CATALYST EFFECTIVE IN THE PRODUCTION OF NITROGEN-CONTAINING PRODUCTS BY THE DIRECT REACTION OF AMMONIA WITH OLEFIN, SAID CATALYST CONSISTING ESSENTIALLY OF AN INERT CARRIER, AND, SUPPORTED THEREON, A REDUCED METAL OXIDE CATALYTIC MATERIAL INCLUDING REDUCED COBALT OXIDE AND REDUCED ZINC OXIDE, THE MOLAR PROPORTIONS OF COBALT AND ZINC BEING BETWEEN 1:2 AND 2:1.
Claim 2
Dependent Claim
54 words
A CATALYST EFFECTIVE IN THE PRODUCTION OF NITROGEN-CONTAINING PRODUCTS BY THE DIRECT REACTION OF AMMONIA WITH OLEFIN, SAID CATALYST CONSISTING ESSENTIALLY OF AN INERT CARRIER, AND, SUPPORTED THEREON, A REDUCED METAL OXIDE CATALYTIC MATERIAL INCLUDING REDUCED COBALT OXIDE AND REDUCED ZINC OXIDE, THE MOLAR PROPORTIONS OF COBALT AND ZINC BEING BETWEEN 1:2 AND 2:1.
Claim 3
Dependent Claim
59 words
IN A PROCESS FOR PRODUCING NITROGEN-CONTAINING PRODUCTS FROM AMMONIA AND OLEFIN THE IMPROVEMENT WHICH COMPRISES PASSING A MIXTURE CONTAINING AMMONIA AND THE OLEFIN, THE AMMONIA BEING PRESENT IN SUBSTANTIAL EXCESS, THROUGH A BODY OF THE CATALYST DEFINED IN CLAIM 1 WHILE MAINTAINING A TEMPERATURE WITHIN THE RANGE FROM ABOUT 400*F. TO ABOUT 725*F. IN THE REGION OF CATALYST CONTACT.
References Cited (Backward Citations)
US1920795A
Cited
US2101104A
Cited
US2274639A
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US2339927A
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US2331968A
Cited
US2398899A
Cited
US2370797A
Cited
US2381709A
Cited
US2381473A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-28 | 1954-02-27 | 1954-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-28 | 1958-02-27 | 1958-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-28 | 1962-02-27 | 1962-08-29 | $7700.00 | Window Closed / Lapsed |