US3219562A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic process for producing ketones
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1961-07-03
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Granted: 1965-11-23
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Expires: 1981-07-03
Abstract
No abstract record available.
Inventors
- 👤 Charles H Worsham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:03
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/08; C; C25; C25B; C25B3/00; C25B3/01; C25B3/07; C25B3/20; C25B3/23; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A PROCESS FOR PRODUCING A KETONE BY CONVERTING THE CORRESPONDING NORMAL OLEFIN OF A HYDROCARBON MIXTURE CONTAINING SAID OLEFIN IN ADMIXTURE WITH PARAFFINS AND ISOOLEFINS HAVING THE SAME NUMBER OF CARBON ATOMS AS SAID NORMAL OLEFIN WHICH COMPRISES CONTACTING SAID HYDROCARBON MIXTURE WITH A FIRST AQUEOUS SULFURIC ACID SOLUTION UNDER CONDITIONS AT WHICH SAID ISOOLEFINS ARE SELECTIVELY ABSORBED, SEPARATING THE RESULTING ISOOLEFIN-ACID EXTRACT FROM SAID PARAFFIN AND SAID NORMAL OLEFIN, PASSING SAID PARAFFIN AND SAID NORMAL OLEFIN IN GASEOUS FORM INTO AN ABSORPTION ZONE CONTAINING AQUEOUS SULFURIC ACID SOLUTION HAVING A CONCENTRATION OF ABOUT 6 TO 11.5 MOLES H2SO4 PER LITER, SEPARATING A NORMAL OLEFIN-ACID EXTRACT CONTAINING ABOUT 2.5 TO ABOUT 5 MOLES H2SO4 PER LITER WITH A RESULTANT FORMATION OF THE CORRESPONDING ALCOHOL
Claim 2
Dependent Claim
124 words
A PROCESS FOR PRODUCING A KETONE BY CONVERTING THE CORRESPONDING NORMAL OLEFIN OF A HYDROCARBON MIXTURE CONTAINING SAID OLEFIN IN ADMIXTURE WITH PARAFFINS AND ISOOLEFINS HAVING THE SAME NUMBER OF CARBON ATOMS AS SAID NORMAL OLEFIN WHICH COMPRISES CONTACTING SAID HYDROCARBON MIXTURE WITH A FIRST AQUEOUS SULFURIC ACID SOLUTION UNDER CONDITIONS AT WHICH SAID ISOOLEFINS ARE SELECTIVELY ABSORBED, SEPARATING THE RESULTING ISOOLEFIN-ACID EXTRACT FROM SAID PARAFFIN AND SAID NORMAL OLEFIN, PASSING SAID PARAFFIN AND SAID NORMAL OLEFIN IN GASEOUS FORM INTO AN ABSORPTION ZONE CONTAINING AQUEOUS SULFURIC ACID SOLUTION HAVING A CONCENTRATION OF ABOUT 6 TO 11.5 MOLES H2SO4 PER LITER, SEPARATING A NORMAL OLEFIN-ACID EXTRACT CONTAINING ABOUT 2.5 TO ABOUT 5 MOLES H2SO4 PER LITER WITH A RESULTANT FORMATION OF THE CORRESPONDING ALCOHOL
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) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |