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US2660599A Expired / Lapsed US ⏱️ 0.0 years remaining

Catalytic hydrogenation of carbon monoxide

Assignee: Ruhrchemie AG
•
Filing: 1949-11-16
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Granted: 1953-11-24
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Expires: 1969-11-16
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Abstract

No abstract record available.

Inventors

  • 👤 Rottig Walter

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 13:29
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/15; C07C29/151; C07C29/153; C07C29/156

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 150 words
A PROCESS FOR CATALYTIC HYDROGENATION OF CARBON MONOXIDE AT TEMPERATURES BETWEEN ABOUT 190* C. AND 320* C. AND PRESSURES BETWEEN 10 AND 50 ATMOSPHERES IN THE PRESENCE OF AN IRON CATALYST PREPARED BY PRECIPITATION AND CONTAINING AN ALKALI COMPOUND OF AN INORGANIC NON-VOLATILE ACID, THE ALKALI CONTENT OF SAID ALKALI COMPOUND RANGING FROM .5-10% CALCULATED FOR K2O OF THE WEIGHT OF THE TOTAL IRON CONTENT, SAID CATALYST HAVING BEEN SUBJECTED TO THE ACTION OF A REDUCING GAS AT A TEMPERATURE OF 200* C. TO 320* C. AND A GAS VELOCITY OF 50 TO 500 CM. PER SECOND UNTIL THE FREE IRON CONTENT OF THE CATALYST IS AT LEAST 60% OF THE TOTAL IRON CONTENT THEREOF, COMPRISING REACTING SAID CARBON MONOXIDE AND HYDROGEN IN THE PRESENCE OF SAID REDUCED CATALYST AND AT TEMPERATURES WITHIN SAID LIMITS TO PRODUCE A HIGH YIELD OF PRODUCT HAVING AT LEAST 40% OF OXYGENATED COMPOUNDS THEREIN.
Claim 2
Dependent Claim 150 words
A PROCESS FOR CATALYTIC HYDROGENATION OF CARBON MONOXIDE AT TEMPERATURES BETWEEN ABOUT 190* C. AND 320* C. AND PRESSURES BETWEEN 10 AND 50 ATMOSPHERES IN THE PRESENCE OF AN IRON CATALYST PREPARED BY PRECIPITATION AND CONTAINING AN ALKALI COMPOUND OF AN INORGANIC NON-VOLATILE ACID, THE ALKALI CONTENT OF SAID ALKALI COMPOUND RANGING FROM .5-10% CALCULATED FOR K2O OF THE WEIGHT OF THE TOTAL IRON CONTENT, SAID CATALYST HAVING BEEN SUBJECTED TO THE ACTION OF A REDUCING GAS AT A TEMPERATURE OF 200* C. TO 320* C. AND A GAS VELOCITY OF 50 TO 500 CM. PER SECOND UNTIL THE FREE IRON CONTENT OF THE CATALYST IS AT LEAST 60% OF THE TOTAL IRON CONTENT THEREOF, COMPRISING REACTING SAID CARBON MONOXIDE AND HYDROGEN IN THE PRESENCE OF SAID REDUCED CATALYST AND AT TEMPERATURES WITHIN SAID LIMITS TO PRODUCE A HIGH YIELD OF PRODUCT HAVING AT LEAST 40% OF OXYGENATED COMPOUNDS THEREIN.

References Cited (Backward Citations)

US1268692A Cited
US1963119A Cited
US2287891A Cited
US2257457A Cited
US2254806A Cited
US2426829A Cited
US2461147A Cited
US2500331A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1956-11-23 1957-05-25 1957-11-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1960-11-23 1961-05-25 1961-11-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1964-11-23 1965-05-25 1965-11-24 $7700.00 Window Closed / Lapsed

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