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US2675401A Expired / Lapsed US ⏱️ 0.0 years remaining

Recovery of organic oxygenated compounds

Assignee: Jefferson Chemical Co Inc
•
Filing: 1950-06-23
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Granted: 1954-04-13
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Expires: 1970-06-23
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Abstract

No abstract record available.

Inventors

  • 👤 Jr George Joseph Laemmle

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 22:11
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/74; C07C29/88; C07C29/92

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 98 words
IN A PROCESS FOR SEPARATING ORGANIC OXYGENATED COMPOUNDS PRODUCED IN THE CATALYTIC HYDROGENATION OF CARBON MONOXIDE, WHICH OXYGENATED COMPOUNDS COMPRISE ALCOHOLS, KETONES ALDEHYDES, ESTERS AND FREE ACIDS, THE STEPS WHICH COMPRISE NEUTRALIZING THE FREE ACIDS PRESENT IN THE MIXTURE BY ADDING ALKALI THERETO IN AMOUNT TO FORM A NEUTRAL MIXTURE, CATALYTICALLY HYDROGENATING THIS NEUTRAL MIXTURE IN THE PRESENCE OF A METALLIC CATALYST TO CONVERT THE KETONES AND ALDEHYDES TO THE CORRESPONDING ALCOHOLS, THEREAFTER SAPONIFYING THE RESULTANT MIXTURE TO CONVERT THE ESTERS TO THE CORRESPONDING ALCOHOLS AND ACID SALTS AND DISTILLING THE RESULTING MIXTURE TO SEPARATE THE ALCOHOLS THEREFROM.
Claim 2
Dependent Claim 98 words
IN A PROCESS FOR SEPARATING ORGANIC OXYGENATED COMPOUNDS PRODUCED IN THE CATALYTIC HYDROGENATION OF CARBON MONOXIDE, WHICH OXYGENATED COMPOUNDS COMPRISE ALCOHOLS, KETONES ALDEHYDES, ESTERS AND FREE ACIDS, THE STEPS WHICH COMPRISE NEUTRALIZING THE FREE ACIDS PRESENT IN THE MIXTURE BY ADDING ALKALI THERETO IN AMOUNT TO FORM A NEUTRAL MIXTURE, CATALYTICALLY HYDROGENATING THIS NEUTRAL MIXTURE IN THE PRESENCE OF A METALLIC CATALYST TO CONVERT THE KETONES AND ALDEHYDES TO THE CORRESPONDING ALCOHOLS, THEREAFTER SAPONIFYING THE RESULTANT MIXTURE TO CONVERT THE ESTERS TO THE CORRESPONDING ALCOHOLS AND ACID SALTS AND DISTILLING THE RESULTING MIXTURE TO SEPARATE THE ALCOHOLS THEREFROM.

References Cited (Backward Citations)

US1716273A Cited
US1870816A Cited
US2171324A Cited
US2516940A Cited
US2505752A Cited
US2494371A Cited
US2543038A Cited
US2568717A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1957-04-12 1957-10-12 1958-04-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1961-04-12 1961-10-12 1962-04-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1965-04-12 1965-10-12 1966-04-13 $7700.00 Window Closed / Lapsed

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