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US2815331A
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Carbon monoxide conversion catalyst and method of preparing same
Assignee: Wyeth Holdings LLC
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Filing: 1953-12-04
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Granted: 1957-12-03
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Expires: 1973-12-04
Abstract
No abstract record available.
Inventors
- 👤 Kenneth D Ashley
- 👤 Samuel I Federman
- 👤 William B Innes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:17
CPC Classifications
C; C01; C01B; C01B3/00; C01B3/02; C01B3/06; C01B3/12; C01B3/16; B; B01; B01J; B01J21/00; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/86; B01J23/862; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
110 words
A PROCESS WHICH COMPRISES REACTING CARBON MONOXIDE AND WATER VAPOR TO PRODUCE HYDROGEN AND CARBON DIOXIDE BY PASSING A GAS MIXTURE CONTAINING CARBON MONOXIDE AND WATER VAPOR AT A TEMPERATURE ABOVE 350* C. IN CONTACT WITH A CATALYST PREPARED BY FORMING AN INTIMATE MOISTENED MIXTURE OF FROM ABOUT 85% TO ABOUT 97% IRON OXIDE AND FROM ABOUT 0.5% TO ABOUT 15% OF A MEMBER OF THE GROUP CONSISTING OF AMMONIUM DICHROMATE AND AMMONIUM CHROMATE SAID PERCENTAGES BEING BY WEIGHT IGNITED BASIS WITH THE IRON OXIDE BEING CALCULATED AS FE2O3 AND SAID MEMBER BEING CALCULATED AS CR2O7, BASED ON THE TOTAL WEIGHT OF FE3O3 AND CR2O7 PRESENT, AND DRYING THE MIXTURE.
References Cited (Backward Citations)
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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) | 1960-12-02 | 1961-06-03 | 1961-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-02 | 1965-06-03 | 1965-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-02 | 1969-06-03 | 1969-12-03 | $7700.00 | Window Closed / Lapsed |