US2944087A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alcohol hydrofinishing
Assignee: —
•
Filing: —
•
Granted: 1960-07-05
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Expires: 1977-07-05
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:42
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/74; C07C29/88; C07C29/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A METHOD OF IMPROVING THE QUALITY OF ETHYL ALCOHOL PREPARED BY HYDRATING ETHYLENE WHICH COMPRISES EXTRACTIVELY DISTILLING CRUDE ETHYL ALCOHOL WITH WATER TO PRODUCE AN ETHYL ALCOHOL FEED HAVING A PERMANGANATE TIME TEST VALUE OF AT LEAST 20 MINUTES AND A MISCELLANEOUS ORGANIC IMPURITIES NUMBER OF NOT MORE THAN ABOUT 0.1, CONTACTI NG SAID ETHYL ALCOHOL WITH A REDUCED NICKEL CATALYST AT A TEMPERATURE WITHIN THE RANGE OF 65* TO 110*F. AND HYDROGEN PRESSURE BETWEEN ABOUT 0 TO 50 P.S.I.G., AT A FEED RATE OF AT LEAST 5 VOLUMES OF ALCOHOL FEED PER VOLUME OF CATALYST PER HOUR, THE CONTACT TIME BEING VELOW ABOUT 2.2 HOURS, FRACTIONALLY DISTILLING THE THUS HYDROFINISHED ALCOHOL TO REMOVE DISSOLVED HYDROGEN THEREFROM AND RECOVERING AN ALCOHOL PRODUCT HAVING IMPROVED ODOR QUALITIES, A HIGHER PERMANGANATE TIME TEST VALUE AND A MISCELLANEOUS ORGANIC IMPURITIES CONCENTRATION NOT GREATER THAN THAT OF THE ETHYL ALCOHOL FEED.
Claim 2
Independent Claim
147 words
A METHOD OF IMPROVING THE QUALITY OF ETHYL ALCOHOL PREPARED BY HYDRATING ETHYLENE WHICH COMPRISES EXTRACTIVELY DISTILLING CRUDE ETHYL ALCOHOL WITH WATER TO PRODUCE AN ETHYL ALCOHOL FEED HAVING A PERMANGANATE TIME TEST VALUE OF AT LEAST 20 MINUTES AND A MISCELLANEOUS ORGANIC IMPURITIES NUMBER OF NOT MORE THAN ABOUT 0.1, CONTACTI NG SAID ETHYL ALCOHOL WITH A REDUCED NICKEL CATALYST AT A TEMPERATURE WITHIN THE RANGE OF 65* TO 110*F. AND HYDROGEN PRESSURE BETWEEN ABOUT 0 TO 50 P.S.I.G., AT A FEED RATE OF AT LEAST 5 VOLUMES OF ALCOHOL FEED PER VOLUME OF CATALYST PER HOUR, THE CONTACT TIME BEING VELOW ABOUT 2.2 HOURS, FRACTIONALLY DISTILLING THE THUS HYDROFINISHED ALCOHOL TO REMOVE DISSOLVED HYDROGEN THEREFROM AND RECOVERING AN ALCOHOL PRODUCT HAVING IMPROVED ODOR QUALITIES, A HIGHER PERMANGANATE TIME TEST VALUE AND A MISCELLANEOUS ORGANIC IMPURITIES CONCENTRATION NOT GREATER THAN THAT OF THE ETHYL ALCOHOL FEED.
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) | 1963-07-05 | 1964-01-04 | 1964-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-05 | 1968-01-04 | 1968-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-05 | 1972-01-04 | 1972-07-05 | $7700.00 | Window Closed / Lapsed |