US2829165A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic conversion of secondary alcohols to ketones
Assignee: Individual
•
Filing: 1956-01-12
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Granted: 1958-04-01
•
Expires: 1976-01-12
Abstract
No abstract record available.
Inventors
- 👤 Coussemant Fernand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:08
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
PROCESS OF PRODUCING KETONES BY DEHYDROGENATION IN THE LIQUID PHASE OF THE CORRESPONDING SECONDARY ALCOHOLS IN THE PRESENCE OF DEHYDROGENATION CATALYSTS, COMPRISING CONTACTING THE ALCOHOL WITH A DEHYDROGENATION CATALYST SUSPENDED IN A SATURATED LIQUID HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF PARAFFIN AND NAPHTHENE HAVING A BOILING POINT HIGHER THAN THE BOILING POINT OF THE KETONE PRODUCED, WHEREBY SAID KETONE IS READILY REMOVED FROM SAID LIQUID HYDROCARBON MEDIUM AT A RATE SUFFICIENT TO PREVENT ACCUMULATION OF ANY SUBSTANTIAL QUANTITY OF KETONE AS FORMED IN SAID HYDROCARBON LIQUID AT A TEMPERATURE ABOVE THE BOILING POINT OF THE PRODUCED KETONE UNDER THE PRESSURE EMPLOYED, ND CONTINUOUSLY REMOVING THE HYDROGEN AND KETONE THUS FORMED IN THE REACTION MEDIUM, HY DISTILLATION.
Claim 2
Dependent Claim
117 words
PROCESS OF PRODUCING KETONES BY DEHYDROGENATION IN THE LIQUID PHASE OF THE CORRESPONDING SECONDARY ALCOHOLS IN THE PRESENCE OF DEHYDROGENATION CATALYSTS, COMPRISING CONTACTING THE ALCOHOL WITH A DEHYDROGENATION CATALYST SUSPENDED IN A SATURATED LIQUID HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF PARAFFIN AND NAPHTHENE HAVING A BOILING POINT HIGHER THAN THE BOILING POINT OF THE KETONE PRODUCED, WHEREBY SAID KETONE IS READILY REMOVED FROM SAID LIQUID HYDROCARBON MEDIUM AT A RATE SUFFICIENT TO PREVENT ACCUMULATION OF ANY SUBSTANTIAL QUANTITY OF KETONE AS FORMED IN SAID HYDROCARBON LIQUID AT A TEMPERATURE ABOVE THE BOILING POINT OF THE PRODUCED KETONE UNDER THE PRESSURE EMPLOYED, ND CONTINUOUSLY REMOVING THE HYDROGEN AND KETONE THUS FORMED IN THE REACTION MEDIUM, HY DISTILLATION.
References Cited (Backward Citations)
US994437A
Cited
US2746993A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-31 | 1961-09-30 | 1962-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-31 | 1965-09-30 | 1966-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-31 | 1969-09-30 | 1970-04-01 | $7700.00 | Window Closed / Lapsed |