Patent US3290354A successfully refreshed from Google Patents.
US3290354A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing acrylonitrile
Assignee: Goodrich Corp
•
Filing: 1964-01-20
•
Granted: 1966-12-06
•
Expires: 1984-01-20
Abstract
No abstract record available.
Inventors
- 👤 Jamal S Eden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:58
CPC Classifications
C; C07; C07C; C07C253/00; C07C253/24; C07C253/26; B; B01; B01J; B01J23/00; B01J23/16; B01J23/32; B01J23/36; B01J27/00; B01J27/02; B01J27/057; B01J27/0576; B01J27/14; B01J27/186; B01J27/188; B01J27/19; B01J2523/00; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A METHOD OF PREPARING ACRYLONITRILE COMPRISING PASSING A MIXTURE IN A MOLAR RATIO PER MOL OF PROPYLENE OF 1 TO MOLS AMMONIA, UP TO 7 MOLS OF WATER VAPOR AND 1 TO 3 MOLS OF OXYGEN, THROUGH A BED OF CATALYST CONSISTING ESSENTIALLY OF COPPER PHOSPHATE, TE CALCULATED AS TEO2 AND RE CALCULATED AS HREO4, IN A MOLAR RATIO OF 100 MOLS OF COPPER PHOSPHATE, 10-30 MOLS OF TE AND 1-10 MOLS OF RE AT A TEMPERATURE OF FROM ABOUT 400 TO ABUT 500*C. WITH A CONTACT TIME OF FROM ABOUT 2 TO ABOUT 70 SECONDS.
Claim 2
Independent Claim
96 words
A METHOD OF PREPARING ACRYLONITRILE COMPRISING PASSING A MIXTURE IN A MOLAR RATIO PER MOL OF PROPYLENE OF 1 TO MOLS AMMONIA, UP TO 7 MOLS OF WATER VAPOR AND 1 TO 3 MOLS OF OXYGEN, THROUGH A BED OF CATALYST CONSISTING ESSENTIALLY OF COPPER PHOSPHATE, TE CALCULATED AS TEO2 AND RE CALCULATED AS HREO4, IN A MOLAR RATIO OF 100 MOLS OF COPPER PHOSPHATE, 10-30 MOLS OF TE AND 1-10 MOLS OF RE AT A TEMPERATURE OF FROM ABOUT 400 TO ABUT 500*C. WITH A CONTACT TIME OF FROM ABOUT 2 TO ABOUT 70 SECONDS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |