US2710831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for stripping soap solutions containing oil-soluble chemicals
Assignee: Stanolind Oil and Gas Co
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Filing: 1952-05-29
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Granted: 1955-06-14
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Expires: 1972-05-29
Abstract
No abstract record available.
Inventors
- 👤 Grekel Howard
- 👤 Karol L Hujsak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:07
CPC Classifications
C; C10; C10G; C10G19/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
IN A PROCESS FOR THE RECOVERY OF OIL-SOLUBLE OXYGENATED ORGANIC CHEMICALS FROM AQUEOUS SOLUTIONS CONTAINING FROM ABOUT 25 TO ABOUT 50 WEIGHT PER CENT OF A SUBSTANTIALLY NONSURFACE-ACTIVE SALT OF A PREFERENTIALLY OILSOLUBLE CARBOXYLIC ACID WHICH SOLUTIONS TEND TO FOAM WHEN SUBJECTED TO DISTILLATION, THE STEPS WHICH COMPRISE INTRODUCING A MIXTURE CONTAINING SAID CHEMICALS AND SALT SOLUTION INTO A DISTILLATION ZONE, TAKING OVERHEAD A MIXTURE COMPRISING ESSENTIALLY SAID OIL-SOLUBLE CHEMICALS AND WATER, ALLOWING SAID MIXTURE TO STRATIFY INTO AN UPPER ORGANIC LAYER AND A LOWER AQUEOUS PHASE, AND RETURNING SAID ORGANIC LAYER TO SAID DISTILLATION ZONE IN A MINOR AMOUNT BUT SUFFICIENT TO MAINTAIN A REFLUX RATIO OF AT LEAST 1.5
Claim 2
Dependent Claim
111 words
IN A PROCESS FOR THE RECOVERY OF OIL-SOLUBLE OXYGENATED ORGANIC CHEMICALS FROM AQUEOUS SOLUTIONS CONTAINING FROM ABOUT 25 TO ABOUT 50 WEIGHT PER CENT OF A SUBSTANTIALLY NONSURFACE-ACTIVE SALT OF A PREFERENTIALLY OILSOLUBLE CARBOXYLIC ACID WHICH SOLUTIONS TEND TO FOAM WHEN SUBJECTED TO DISTILLATION, THE STEPS WHICH COMPRISE INTRODUCING A MIXTURE CONTAINING SAID CHEMICALS AND SALT SOLUTION INTO A DISTILLATION ZONE, TAKING OVERHEAD A MIXTURE COMPRISING ESSENTIALLY SAID OIL-SOLUBLE CHEMICALS AND WATER, ALLOWING SAID MIXTURE TO STRATIFY INTO AN UPPER ORGANIC LAYER AND A LOWER AQUEOUS PHASE, AND RETURNING SAID ORGANIC LAYER TO SAID DISTILLATION ZONE IN A MINOR AMOUNT BUT SUFFICIENT TO MAINTAIN A REFLUX RATIO OF AT LEAST 1.5
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) | 1958-06-13 | 1958-12-13 | 1959-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-13 | 1962-12-13 | 1963-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-13 | 1966-12-13 | 1967-06-14 | $7700.00 | Window Closed / Lapsed |