US2861999A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of cyanopyridines
Assignee: Honeywell International Inc
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Filing: 1956-03-27
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Granted: 1958-11-25
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Expires: 1976-03-27
Abstract
No abstract record available.
Inventors
- 👤 Alessandro Alfred F D
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:58
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/78; C07D213/84; B; B01; B01J; B01J23/00; B01J23/002; B01J27/00; B01J27/14; B01J27/186; B01J27/195; B01J27/198; B01J27/199; B01J2523/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A PROCESS FOR THE PRODUCTION OF CYANOPYRIDINES WHICHH COMPRISES PASSING A GASEOUS MIXTURE COMPRISING A MEMBER OF THE GROUP CONSISTING OF MONALKYL AND DIALKYL SUBSTITUTED PYRIDINES, AMMONIA AND OXYGEN, IN THE PROPORTIONS OF ABOUT 2 TO 5 MOLS OF AMMONIA AND ABOUT 5 TO 50 MOLS OF OXYGEN PER MOL OF ALKYL SUBSTITUTED PYRIDINE, UPWARDLY THROUGH AN OXIDATION CATALYST HAVING A PARTICLE SIZE OF ABOUT 50 TO 3000 MICRONS AND CONTAINING OXIDES OF VANADIUM, MOLYBDENUM AND PHOSPHORUS SUPPORTED ON ACTIVATED ALUMINA, AT A LINEAR VELOCITY OF ABOUT 0.02 TO 10 FEET PER SECOND TO EFFECT FLUIDIZATION OF THE CATALYST, AND MAINTAINING SAID GASEOUS MIXTURE IN CONTACT WITH THE CATALYST AT A TEMPERATURE OF ABOUT 310* TO 365* C. FOR A PERIOD OF ABOUT 0.1 TO 10 SECONDS.
Claim 2
Dependent Claim
127 words
A PROCESS FOR THE PRODUCTION OF CYANOPYRIDINES WHICHH COMPRISES PASSING A GASEOUS MIXTURE COMPRISING A MEMBER OF THE GROUP CONSISTING OF MONALKYL AND DIALKYL SUBSTITUTED PYRIDINES, AMMONIA AND OXYGEN, IN THE PROPORTIONS OF ABOUT 2 TO 5 MOLS OF AMMONIA AND ABOUT 5 TO 50 MOLS OF OXYGEN PER MOL OF ALKYL SUBSTITUTED PYRIDINE, UPWARDLY THROUGH AN OXIDATION CATALYST HAVING A PARTICLE SIZE OF ABOUT 50 TO 3000 MICRONS AND CONTAINING OXIDES OF VANADIUM, MOLYBDENUM AND PHOSPHORUS SUPPORTED ON ACTIVATED ALUMINA, AT A LINEAR VELOCITY OF ABOUT 0.02 TO 10 FEET PER SECOND TO EFFECT FLUIDIZATION OF THE CATALYST, AND MAINTAINING SAID GASEOUS MIXTURE IN CONTACT WITH THE CATALYST AT A TEMPERATURE OF ABOUT 310* TO 365* C. FOR A PERIOD OF ABOUT 0.1 TO 10 SECONDS.
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) | 1961-11-24 | 1962-05-26 | 1962-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-24 | 1966-05-26 | 1966-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-24 | 1970-05-26 | 1970-11-25 | $7700.00 | Window Closed / Lapsed |