Patent US2664434A successfully refreshed from Google Patents.
US2664434A
Expired / Lapsed
US
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Recovery of oxygenated organic compounds
Assignee: Phillips Petroleum Co
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Filing: 1949-06-24
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Granted: 1953-12-29
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Expires: 1969-06-24
Abstract
No abstract record available.
Inventors
- 👤 John S Cromeans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:43
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/15; C07C29/151; C07C29/153; C07C29/156; C07C29/74; C07C29/76; C07C29/86
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
THE METHOD OF RECOVERING NORMALLY HYDROCARBON-SOLBLE OXYGENATED ORGANIC COMPOUNDS FROM THE EFFLUENT FROM THE CATALYTIC HYDROGENATION OF CARBON MONOXIDE IN THE PRESENCE OF A FLUIDIZED IRON CATALYST AT A TEMPERATURE WITHIN THE RANGE OF 295-320* C. WHICH COMPRISES; ADDING TO SAID EFFLUENT AN AMOUNT OF LOW BOILING ALIPHATIC ALCOHOL SELECTED FROM THE GROUP CONSISTING OF METHANOL AND ETHANOL SUFFICIENT TO REDUCE THE TEMPERATURE OF SAID EFFLUENT TO A TEMPERATURE WITHIN THE RANGE OF 200*-260* C.; SEPARATING CONDENSED HIGH BOILING WAXY HYDROCARBONS FROM THE RESULTING COOLED EFFLUENT; ADDING T SAID RESULTING COOLED EFFLUENT AN ADDITIONAL AMOUNT OF SAID LOW BOILING ALIPHATIC ALCOHOL TO REDUCE THE TEMPERA-
Claim 2
Independent Claim
105 words
THE METHOD OF RECOVERING NORMALLY HYDROCARBON-SOLBLE OXYGENATED ORGANIC COMPOUNDS FROM THE EFFLUENT FROM THE CATALYTIC HYDROGENATION OF CARBON MONOXIDE IN THE PRESENCE OF A FLUIDIZED IRON CATALYST AT A TEMPERATURE WITHIN THE RANGE OF 295-320* C. WHICH COMPRISES; ADDING TO SAID EFFLUENT AN AMOUNT OF LOW BOILING ALIPHATIC ALCOHOL SELECTED FROM THE GROUP CONSISTING OF METHANOL AND ETHANOL SUFFICIENT TO REDUCE THE TEMPERATURE OF SAID EFFLUENT TO A TEMPERATURE WITHIN THE RANGE OF 200*-260* C.; SEPARATING CONDENSED HIGH BOILING WAXY HYDROCARBONS FROM THE RESULTING COOLED EFFLUENT; ADDING T SAID RESULTING COOLED EFFLUENT AN ADDITIONAL AMOUNT OF SAID LOW BOILING ALIPHATIC ALCOHOL TO REDUCE THE TEMPERA-
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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) | 1956-12-28 | 1957-06-29 | 1957-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-28 | 1961-06-29 | 1961-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-28 | 1965-06-29 | 1965-12-29 | $7700.00 | Window Closed / Lapsed |