US2885446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for improving color of oil-soluble alcohols
Assignee: Pan American Petroleum Corp
•
Filing: 1957-08-05
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Granted: 1959-05-05
•
Expires: 1977-08-05
Abstract
No abstract record available.
Inventors
- 👤 Shelby P Sharp
- 👤 Jr Alfred Steitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:16
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/74; C07C29/88; C07C29/92
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
IN A PROCESS FOR THE REMOVAL OF ABJECTIONABLE COLAR FORMING IMPURITIES FROM C8 AND LOWER MOLECULAR WEIGHT OIL SOLUBLE ALCOHOLS DERIVED FROM HYDROCARBON SYNTHESIS OIL, SAID ALCOHOLS HAVING A COLOR SUBSTANTIALLY HIGHER THAN 200 APHA, THE IMPROVEMENT WHICH COMPRISES MIXING AN ALCOHOL OF THE ABOVE INDICATED MOLECULAR WEIGHT RANGE WITH BORIC ACID, ALLOWING SAID ALCOHOL AND BORIC ACID TO REACT IN A REACTION ZONE TO FORM THE CORRESPONDING ALCHOL BORATE, SEPARTING THE LATTER FROM THE CORRBORIC ACID SOLUTION AND HYDROLYZING SAID BORATE TO LIBERATE SAID ALCOHOL, THEREAFTER SUBJECTING THE LATTER TO HYDROGENATION, AND FRACTIONATING THE RESULTING HYDROGENATED ALCOHOL TO RECOVER AN ALCOHOL DISTILLATE FRACTION HAVING
Claim 2
Dependent Claim
105 words
IN A PROCESS FOR THE REMOVAL OF ABJECTIONABLE COLAR FORMING IMPURITIES FROM C8 AND LOWER MOLECULAR WEIGHT OIL SOLUBLE ALCOHOLS DERIVED FROM HYDROCARBON SYNTHESIS OIL, SAID ALCOHOLS HAVING A COLOR SUBSTANTIALLY HIGHER THAN 200 APHA, THE IMPROVEMENT WHICH COMPRISES MIXING AN ALCOHOL OF THE ABOVE INDICATED MOLECULAR WEIGHT RANGE WITH BORIC ACID, ALLOWING SAID ALCOHOL AND BORIC ACID TO REACT IN A REACTION ZONE TO FORM THE CORRESPONDING ALCHOL BORATE, SEPARTING THE LATTER FROM THE CORRBORIC ACID SOLUTION AND HYDROLYZING SAID BORATE TO LIBERATE SAID ALCOHOL, THEREAFTER SUBJECTING THE LATTER TO HYDROGENATION, AND FRACTIONATING THE RESULTING HYDROGENATED ALCOHOL TO RECOVER AN ALCOHOL DISTILLATE FRACTION HAVING
References Cited (Backward Citations)
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Cited
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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) | 1962-05-04 | 1962-11-03 | 1963-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-04 | 1966-11-03 | 1967-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-04 | 1970-11-03 | 1971-05-05 | $7700.00 | Window Closed / Lapsed |