US2931834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ctclohexane oxidation process
Assignee: —
•
Filing: —
•
Granted: 1960-04-05
•
Expires: 1977-04-05
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:04
CPC Classifications
C; C07; C07C; C07C49/00; C07C49/385; C07C49/403; C07C45/00; C07C45/27; C07C45/32; C07C45/33; C07C29/00; C07C29/132; C07C29/48; C07C29/50; C07C29/74; C07C29/76; C07C29/80; C07C35/00; C07C35/02; C07C35/08; C07C407/00; C07C409/00; C07C409/02; C07C409/14; C07C2601/00; C07C2601/12; C07C2601/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
THE PROCESS FOR PRODUCING CYCLOHEXANOL AND CYCLOHEXANONE WHICH COMPRISES CONTACTING CYCLOHEXANE IN THE LIQUID STATE WITH A FREE OXYGEN CONTAINING GAS IN AN OXIDATION ZONE, SUBSTANTIALLY REDUCING THE PRESSURE ON THE EFFLUENT FROM SAID OXIDATION ZONE TO FLASH VOLATILE ACIDS, WATER AND A MAJOR PORTION OF THE UNREACTED CYCLOHEXANE SO THAT THE MATERIAL REMAINING CONTAINS FROM 5 TO 20 WEIGHT PERCENT OF OXYGENATED PRODUCTS, CONTACTING THE THUS CONCENTRATED OXYGENATED PRODUCTS REMAINING AFTER THE FLASHING STEP WITH AN ALKALI METAL HYDROXIDE IN A CONTACTING ZONE, AND RECOVERING CYCLOHEXANOL AND CYCLOHEXANONE FORM THE CONTACTING ZONE.
Claim 2
Dependent Claim
93 words
THE PROCESS FOR PRODUCING CYCLOHEXANOL AND CYCLOHEXANONE WHICH COMPRISES CONTACTING CYCLOHEXANE IN THE LIQUID STATE WITH A FREE OXYGEN CONTAINING GAS IN AN OXIDATION ZONE, SUBSTANTIALLY REDUCING THE PRESSURE ON THE EFFLUENT FROM SAID OXIDATION ZONE TO FLASH VOLATILE ACIDS, WATER AND A MAJOR PORTION OF THE UNREACTED CYCLOHEXANE SO THAT THE MATERIAL REMAINING CONTAINS FROM 5 TO 20 WEIGHT PERCENT OF OXYGENATED PRODUCTS, CONTACTING THE THUS CONCENTRATED OXYGENATED PRODUCTS REMAINING AFTER THE FLASHING STEP WITH AN ALKALI METAL HYDROXIDE IN A CONTACTING ZONE, AND RECOVERING CYCLOHEXANOL AND CYCLOHEXANONE FORM THE CONTACTING ZONE.
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) | 1963-04-05 | 1963-10-05 | 1964-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-05 | 1967-10-05 | 1968-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-05 | 1971-10-05 | 1972-04-05 | $7700.00 | Window Closed / Lapsed |