US2625560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation of oxygenated compounds with bisulfite adducts
Assignee: Stanolind Oil and Gas Co
•
Filing: 1947-09-24
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Granted: 1953-01-13
•
Expires: 1967-09-24
Abstract
No abstract record available.
Inventors
- 👤 Vesta F Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:00
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/78; C07C45/80; C07C51/00; C07C51/42; C07C51/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
IN A PROCESS FOR SEPARATING AND RECOVERING GENERICALLY DISSIMILAR GROUPS OF ORGANIC OXYGENATED COMPOUNDS FROM A HYDROCARBON SOLUTION CONTAINING AN OIL-SOLUBLE CARBOXYLIC ACID AND COMPRISING A PREFERENTIALLY OIL-SOLUBLE ALCOHOL AND AT LEAST ONE CARBONYL COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALDEHYDES AND KETONES, THE STEPS WHICH COMPRISE EXTRACTING SAID HYDROCARBON SOLUTION WITH AN AQUEOUS EXTRACTANT SOLUTION COMPRISING AN ALKALI-METAL BISULFITE AND A SOLUBILIZER FOR SAID PREFERENTIALLY OIL-SOLUBLE ALCOHOL CONSISTING ESSENTIALLY OF A BISULFITE ADDITION PRODUCT OF A CARBONYL COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALDEHYDES AND KETONES AT A PH FROM ABOUT 2.2 TO 8.0; SEPARATING SAID PREFERENTIALLY OIL-SOLUBLE ALCOHOL FROM THE RESULTING AQUEOUS EXTRACT; HEATING AT LEAST A PORTION OF THE ALCOHOL-DEPLETED AQUEOUS EXTRACT ABOVE THE DECOMPOSITION TEMPERATURE OF THE BISULFITE ADDITION PRODUCTS CONTAINED THEREIN; AND WITHDRAWING AND RECOVERING AT LEAST A PORTION OF THE CARBONYL COMPOUNDS REGENERATED THEREBY.
Claim 2
Dependent Claim
142 words
IN A PROCESS FOR SEPARATING AND RECOVERING GENERICALLY DISSIMILAR GROUPS OF ORGANIC OXYGENATED COMPOUNDS FROM A HYDROCARBON SOLUTION CONTAINING AN OIL-SOLUBLE CARBOXYLIC ACID AND COMPRISING A PREFERENTIALLY OIL-SOLUBLE ALCOHOL AND AT LEAST ONE CARBONYL COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALDEHYDES AND KETONES, THE STEPS WHICH COMPRISE EXTRACTING SAID HYDROCARBON SOLUTION WITH AN AQUEOUS EXTRACTANT SOLUTION COMPRISING AN ALKALI-METAL BISULFITE AND A SOLUBILIZER FOR SAID PREFERENTIALLY OIL-SOLUBLE ALCOHOL CONSISTING ESSENTIALLY OF A BISULFITE ADDITION PRODUCT OF A CARBONYL COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALDEHYDES AND KETONES AT A PH FROM ABOUT 2.2 TO 8.0; SEPARATING SAID PREFERENTIALLY OIL-SOLUBLE ALCOHOL FROM THE RESULTING AQUEOUS EXTRACT; HEATING AT LEAST A PORTION OF THE ALCOHOL-DEPLETED AQUEOUS EXTRACT ABOVE THE DECOMPOSITION TEMPERATURE OF THE BISULFITE ADDITION PRODUCTS CONTAINED THEREIN; AND WITHDRAWING AND RECOVERING AT LEAST A PORTION OF THE CARBONYL COMPOUNDS REGENERATED THEREBY.
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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) | 1956-01-13 | 1956-07-14 | 1957-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-13 | 1960-07-14 | 1961-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-13 | 1964-07-14 | 1965-01-13 | $7700.00 | Window Closed / Lapsed |