US3153085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of aliphatic nitriles
Assignee: Distillers Co Yeast Ltd
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Filing: 1960-01-25
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Granted: 1964-10-13
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Expires: 1980-01-25
Abstract
No abstract record available.
Inventors
- 👤 Hadley David James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:51
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/88; B01J23/881; B01J23/882; B01J27/00; B01J27/02; B01J27/057; B01J27/0576; C; C07; C07C; C07C253/00; C07C253/24; C07C253/26; B01J2523/00; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A PROCESS WHICH COMPRISES REACING AT ABOUT 300 TO ABOUT 500*C. IN THE VAPOUR PHASE A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF PROPYLENE TO PRODUCE ACRYLONITRILE AND ISOBUTENE TO PRODUCE METHACRYLONITRILE, WITH OXYGEN AND AMMONIA, SUCH SUBSTANCE BEING PRESENT IN 1-20% BY VOLUME, OXYGEN 1-20% BY VOLUME, AND AMMONIA IN STOICHLOMETRICAL EXCESS AND SUFFICIENT TO PROVIDE AN EXCESS AFTER REACTION, OVER AN OXIDATION CATALYST SELECTED FROM THE GROUP CONSISTING OF COBALT MOLYBDATE AND COBALT MOLYBDATE WITH TELLURIUM OXIDE, WHEREIN SAID COBALT MOLYBDATE IS PREPARED BY ADDING A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF MOLYBDIC ACID AND MOLYBDIC ACID SALT AND A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF AMMONIA AND A WATER SOLUBLE AMINE, SEPARATELY, TO AN AQUEOUS SOLUTION OF A COBALT SALT, AND HEATING THE RESULTANT MIXTURE IN THE RANGE OF 400 TO 700*C.
Claim 2
Dependent Claim
137 words
A PROCESS WHICH COMPRISES REACING AT ABOUT 300 TO ABOUT 500*C. IN THE VAPOUR PHASE A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF PROPYLENE TO PRODUCE ACRYLONITRILE AND ISOBUTENE TO PRODUCE METHACRYLONITRILE, WITH OXYGEN AND AMMONIA, SUCH SUBSTANCE BEING PRESENT IN 1-20% BY VOLUME, OXYGEN 1-20% BY VOLUME, AND AMMONIA IN STOICHLOMETRICAL EXCESS AND SUFFICIENT TO PROVIDE AN EXCESS AFTER REACTION, OVER AN OXIDATION CATALYST SELECTED FROM THE GROUP CONSISTING OF COBALT MOLYBDATE AND COBALT MOLYBDATE WITH TELLURIUM OXIDE, WHEREIN SAID COBALT MOLYBDATE IS PREPARED BY ADDING A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF MOLYBDIC ACID AND MOLYBDIC ACID SALT AND A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF AMMONIA AND A WATER SOLUBLE AMINE, SEPARATELY, TO AN AQUEOUS SOLUTION OF A COBALT SALT, AND HEATING THE RESULTANT MIXTURE IN THE RANGE OF 400 TO 700*C.
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) | 1967-10-13 | 1968-04-13 | 1968-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-13 | 1972-04-13 | 1972-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-13 | 1976-04-13 | 1976-10-13 | $7700.00 | Window Closed / Lapsed |