US2496343A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Red-iron oxide type fluid catalyst for hydrocarbon synthesis
Assignee: Standard Oil Development Co
•
Filing: 1946-06-04
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Granted: 1950-02-07
•
Expires: 1966-06-04
Abstract
No abstract record available.
Inventors
- 👤 Bruce G Gillespie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:23
CPC Classifications
C; C07; C07C; C07C1/00; C07C1/02; C07C1/04; C07C1/0425; C07C1/0445; B; B01; B01J; B01J23/00; B01J23/70; B01J23/74; B01J23/745; B01J23/76; B01J23/78; C07C2523/00; C07C2523/70; C07C2523/74; C07C2523/745
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
AN IMPROVED PROCESS FOR PRODUCING VALUABLE CONVERSION PRODUCTS FROM CO AND H2 IN THE PRESENCE OF IRON CATALYSTS WHICH COMPRISES CONTACTING A GAS CONTAINING CO AND H2 IN SYNTHESIS PROPORTIONS AT SYNTHESIS CONDITIONS WITH A FLUIDIZED MASS OF SINTERED REDUCED IRON OXIDE PARTICLES OF FLUIDIZABLE SIZE OBTAINED BY A METHOD COMPRISING INCORPORATING INTO RED-IRON OXIDE POWDER A MINOR PROMOTIONAL AMOUNT OF POTASSIUM CARBONATE SUBJECTING THE COMPOSITE OBTAINED TO A SUBSTANTIALLY COMPLETE REDUCTION INCLUDING A SINTERING TREATMENT IN A HYDROGEN-CONTAINING REDUCING ATMOSPHERE AT ABOUT 1600*F. AND GRINDING THE SINTERED PRODUCT TO A FLUIDIZABLE PARTICLE SIZE.
Claim 2
Dependent Claim
94 words
AN IMPROVED PROCESS FOR PRODUCING VALUABLE CONVERSION PRODUCTS FROM CO AND H2 IN THE PRESENCE OF IRON CATALYSTS WHICH COMPRISES CONTACTING A GAS CONTAINING CO AND H2 IN SYNTHESIS PROPORTIONS AT SYNTHESIS CONDITIONS WITH A FLUIDIZED MASS OF SINTERED REDUCED IRON OXIDE PARTICLES OF FLUIDIZABLE SIZE OBTAINED BY A METHOD COMPRISING INCORPORATING INTO RED-IRON OXIDE POWDER A MINOR PROMOTIONAL AMOUNT OF POTASSIUM CARBONATE SUBJECTING THE COMPOSITE OBTAINED TO A SUBSTANTIALLY COMPLETE REDUCTION INCLUDING A SINTERING TREATMENT IN A HYDROGEN-CONTAINING REDUCING ATMOSPHERE AT ABOUT 1600*F. AND GRINDING THE SINTERED PRODUCT TO A FLUIDIZABLE PARTICLE SIZE.
References Cited (Backward Citations)
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US2220261A
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US2365094A
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US2414585A
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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) | 1953-02-06 | 1953-08-08 | 1954-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-06 | 1957-08-08 | 1958-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-06 | 1961-08-08 | 1962-02-07 | $7700.00 | Window Closed / Lapsed |