US3050546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of acrylonitrile
Assignee: Standard Oil Co
•
Filing: 1959-02-24
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Granted: 1962-08-21
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Expires: 1979-02-24
Abstract
No abstract record available.
Inventors
- 👤 Ernest C Milberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:41
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/16; B01J23/24; B01J23/31; B01J27/00; B01J27/14; B01J27/186; B01J27/188; B01J27/19; 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
68 words
A PROCESS FOR THE MANUFACTURE OF ACRYLINITRILE COMPRISING THE STEP OF REACTING IN THE VAPOR PHASE A MIXTURE OF PROPYLENE, AMMONIA, AND OXYGEN IN THE PRESENCE OF A CATALYST SELECTED FROM THE GROUP CONSISTING OF THE BISMUTH, TIN AND ANTIMONY SALTS OF PHOSPHOMOLYBIC AND MOLYBDIC ACIDS AND BISMUTH PHOSPHOTUNGSTATE AND AN AMOUNT OF HYDROGEN CYANIDE IN THE RANGE OF ABOUT 0.01 TO 0.2 MOL PER MOL OF PROPYLENE.
Claim 2
Dependent Claim
68 words
A PROCESS FOR THE MANUFACTURE OF ACRYLINITRILE COMPRISING THE STEP OF REACTING IN THE VAPOR PHASE A MIXTURE OF PROPYLENE, AMMONIA, AND OXYGEN IN THE PRESENCE OF A CATALYST SELECTED FROM THE GROUP CONSISTING OF THE BISMUTH, TIN AND ANTIMONY SALTS OF PHOSPHOMOLYBIC AND MOLYBDIC ACIDS AND BISMUTH PHOSPHOTUNGSTATE AND AN AMOUNT OF HYDROGEN CYANIDE IN THE RANGE OF ABOUT 0.01 TO 0.2 MOL PER MOL OF PROPYLENE.
References Cited (Backward Citations)
US2481826A
Cited
US2671107A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-20 | 1966-02-19 | 1966-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-20 | 1970-02-19 | 1970-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-20 | 1974-02-19 | 1974-08-21 | $7700.00 | Window Closed / Lapsed |