Patent US2697730A successfully refreshed from Google Patents.
US2697730A
Expired / Lapsed
US
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Method for producing higher ketones
Assignee: —
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Filing: —
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Granted: 1954-12-21
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Expires: 1971-12-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:27
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/61; C07C45/67; C07C45/68; C07C45/70; C07C45/71
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
130 words
IN A METHOD FOR CONTINUOUSLY PRODUCING HIGHER KETONES, THE STEPS COMPRISING CONTINUOUSLY REACTING AT LEAST ONE COMPONENT SELECTED FROM THE GROUP CONSISTING OF AN ALIPHATIC ALCOHOL, MIXTURES OF AN ALIPHATIC ALCOHOL WITH AN ALIPHATIC KETONE, MIXTURES OF AN ALIPHATIC ALCOHOL WITH AN ALIPHATIC KETONE AND WITH HYDROGEN, AND MIXTURES OF AN ALIPHATIC KETONE WITH HYDROGEN TO PRODUCE A HIGHER KETONE THEREFROM, BY PASSING A VAPOROUS FEED STREAM CONTAINING SAID COMPONENT THROUGH A FIRST REACTION ZONE PROVIDED WITH A METAL OXIDE-METAL DEHYDRATINGDEHYDROGENATING CATALYST AT A PRESSURE ABOVE ABOUT 175 P.S.I.G. AND AT AN ELEVATED TEMPERATURE; CONTINUOUSLY PASSING THE EFFLUENT FROM SAID FIRST ZONE THROUGH A SECOND REACTION ZONE PROVIDED WITH A METAL DEHYDROGENATING CATALYST AT A PRESSURE BETWEEN ABOUT 15 AND 50 P.S.I.G. AND AT AN ELEVATED TEMPERATURE; CONTINUOUSLY PASSING THE
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) | 1957-12-20 | 1958-06-21 | 1958-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-20 | 1962-06-21 | 1962-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-20 | 1966-06-21 | 1966-12-21 | $7700.00 | Window Closed / Lapsed |