US2867651A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Purification of alcohols and production of esters in the presence of borohydrides
Assignee: Standard Oil Co
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Filing: 1955-10-24
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Granted: 1959-01-06
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Expires: 1975-10-24
Abstract
No abstract record available.
Inventors
- 👤 Robert H Wise
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:19
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/74; C07C29/88; C07C29/90; C07C67/00; C07C67/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
139 words
A PROCESS FOR THE TREATMENT OF A WATER-IMMISCIBLE ALCOHOL FRACTION CONTAINING AT LEAST 4 CARBON ATOMS PER MOLECULE PRODUCED BY CATALYTIC REACTION AT ELEVATED TEMPERATURES OF A REACTION MIXTURE COMPRISING ESSENTIALLY CARBON MONOXIDE AND HYDROGEN, SAID FRACTION CONTAINING CONNATE IMPURITIES, INCLUDING CARBONYL COMPOUNDS, CARBOXYLIC ACIDS AND ALCOHOL INTERACTION PRODUCTS THEREOF, WHICH PROCESS COMPRISES CONTACTING SAID ALCOHOL FRACTION WITH A METAL BOROHYDRIDE SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL BOROHYDRIDES AND ALKALINE EARTH METAL BOROHYDRIDES IN AN EFFECTIVE PROPORTION OF AT LEAST ABOUT 0.001% BY WEIGHT BASED ON SAID ALCOHOL FRACTION AND SUFFICIENT AT LEAST TO DESTROY UNDESIRABLE IMPURITIES IN SAID ALCOHOL FRACTION WHICH HAVE COLORPRODUCING TENDENCIES IN A SUBSEQUENT REACTION OF SAID ALCOHOL FRACTION, AND EFFECTING SAID CONTACTING AT AN EFFECTIVE TEMPERATURE OF AT LEAST ABOUT 0* C. FOR AN EFFECTIVE PERIOD OF AT LEAST ABOUT 3 MINUTES.
Claim 2
Dependent Claim
139 words
A PROCESS FOR THE TREATMENT OF A WATER-IMMISCIBLE ALCOHOL FRACTION CONTAINING AT LEAST 4 CARBON ATOMS PER MOLECULE PRODUCED BY CATALYTIC REACTION AT ELEVATED TEMPERATURES OF A REACTION MIXTURE COMPRISING ESSENTIALLY CARBON MONOXIDE AND HYDROGEN, SAID FRACTION CONTAINING CONNATE IMPURITIES, INCLUDING CARBONYL COMPOUNDS, CARBOXYLIC ACIDS AND ALCOHOL INTERACTION PRODUCTS THEREOF, WHICH PROCESS COMPRISES CONTACTING SAID ALCOHOL FRACTION WITH A METAL BOROHYDRIDE SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL BOROHYDRIDES AND ALKALINE EARTH METAL BOROHYDRIDES IN AN EFFECTIVE PROPORTION OF AT LEAST ABOUT 0.001% BY WEIGHT BASED ON SAID ALCOHOL FRACTION AND SUFFICIENT AT LEAST TO DESTROY UNDESIRABLE IMPURITIES IN SAID ALCOHOL FRACTION WHICH HAVE COLORPRODUCING TENDENCIES IN A SUBSEQUENT REACTION OF SAID ALCOHOL FRACTION, AND EFFECTING SAID CONTACTING AT AN EFFECTIVE TEMPERATURE OF AT LEAST ABOUT 0* C. FOR AN EFFECTIVE PERIOD OF AT LEAST ABOUT 3 MINUTES.
Claim 3
Dependent Claim
83 words
IN A PROCESS FOR PRODUCING AN ESTER OF AN ORGANIC CARBOXYLIC ACID BY REACTION OF AN ALIPHATIC ALCOHOL OF OXO PROCESS ORIGIN WITH A MEMBER OF THE GROUP CONSISTING OF ORGANIC POLYCARBOXYLIC ACIDS AND ANHYDRIDES OF ORGANIC POLYCARBOXYLIC ACIDS, THE IMPROVEMENT WHICH COMPRISES CONDUCTING THE ESTERIFICATION IN THE PRESENCE OF FROM ABOUT 0.001% TO ABOUT 1.0% BY WEIGHT BASED ON THE WEIGHT OF SAID ALCOHOL OF A METAL BOROHYDRIDE SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL BOROHYDRIDES AND ALKALINE EARTH METAL BOROHYDRIDES.
Claim 4
Dependent Claim
83 words
IN A PROCESS FOR PRODUCING AN ESTER OF AN ORGANIC CARBOXYLIC ACID BY REACTION OF AN ALIPHATIC ALCOHOL OF OXO PROCESS ORIGIN WITH A MEMBER OF THE GROUP CONSISTING OF ORGANIC POLYCARBOXYLIC ACIDS AND ANHYDRIDES OF ORGANIC POLYCARBOXYLIC ACIDS, THE IMPROVEMENT WHICH COMPRISES CONDUCTING THE ESTERIFICATION IN THE PRESENCE OF FROM ABOUT 0.001% TO ABOUT 1.0% BY WEIGHT BASED ON THE WEIGHT OF SAID ALCOHOL OF A METAL BOROHYDRIDE SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL BOROHYDRIDES AND ALKALINE EARTH METAL BOROHYDRIDES.
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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) | 1962-01-05 | 1962-07-07 | 1963-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-05 | 1966-07-07 | 1967-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-05 | 1970-07-07 | 1971-01-06 | $7700.00 | Window Closed / Lapsed |