US2675401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery of organic oxygenated compounds
Assignee: Jefferson Chemical Co Inc
•
Filing: 1950-06-23
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Granted: 1954-04-13
•
Expires: 1970-06-23
Abstract
No abstract record available.
Inventors
- 👤 Jr George Joseph Laemmle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:59
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/74; C07C29/88; C07C29/92
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
IN A PROCESS FOR SEPARATING ORGANIC OXYGENATED COMPOUNDS PRODUCED IN THE CATALYTIC HYDROGENATION OF CARBON MONOXIDE, WHICH OXYGENATED COMPOUNDS COMPRISE ALCOHOLS, KETONES ALDEHYDES, ESTERS AND FREE ACIDS, THE STEPS WHICH COMPRISE NEUTRALIZING THE FREE ACIDS PRESENT IN THE MIXTURE BY ADDING ALKALI THERETO IN AMOUNT TO FORM A NEUTRAL MIXTURE, CATALYTICALLY HYDROGENATING THIS NEUTRAL MIXTURE IN THE PRESENCE OF A METALLIC CATALYST TO CONVERT THE KETONES AND ALDEHYDES TO THE CORRESPONDING ALCOHOLS, THEREAFTER SAPONIFYING THE RESULTANT MIXTURE TO CONVERT THE ESTERS TO THE CORRESPONDING ALCOHOLS AND ACID SALTS AND DISTILLING THE RESULTING MIXTURE TO SEPARATE THE ALCOHOLS THEREFROM.
Claim 2
Dependent Claim
98 words
IN A PROCESS FOR SEPARATING ORGANIC OXYGENATED COMPOUNDS PRODUCED IN THE CATALYTIC HYDROGENATION OF CARBON MONOXIDE, WHICH OXYGENATED COMPOUNDS COMPRISE ALCOHOLS, KETONES ALDEHYDES, ESTERS AND FREE ACIDS, THE STEPS WHICH COMPRISE NEUTRALIZING THE FREE ACIDS PRESENT IN THE MIXTURE BY ADDING ALKALI THERETO IN AMOUNT TO FORM A NEUTRAL MIXTURE, CATALYTICALLY HYDROGENATING THIS NEUTRAL MIXTURE IN THE PRESENCE OF A METALLIC CATALYST TO CONVERT THE KETONES AND ALDEHYDES TO THE CORRESPONDING ALCOHOLS, THEREAFTER SAPONIFYING THE RESULTANT MIXTURE TO CONVERT THE ESTERS TO THE CORRESPONDING ALCOHOLS AND ACID SALTS AND DISTILLING THE RESULTING MIXTURE TO SEPARATE THE ALCOHOLS THEREFROM.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-12 | 1957-10-12 | 1958-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-12 | 1961-10-12 | 1962-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-12 | 1965-10-12 | 1966-04-13 | $7700.00 | Window Closed / Lapsed |