US2735862A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthesis of hydrocarbons with iron-cobalt catalyst
Assignee: —
•
Filing: —
•
Granted: 1956-02-21
•
Expires: 1973-02-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:12
CPC Classifications
C; C07; C07C; C07C1/00; C07C1/02; C07C1/04; C07C1/0425; C07C1/043; C07C1/0435; C07C1/044; C07C2521/00; C07C2521/06; C07C2521/08; C07C2523/00; C07C2523/12; C07C2523/70; C07C2523/74; C07C2523/745; C07C2523/75; C07C2523/76; C07C2523/83
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
AN IMPROVED PROCESS FOR CONVERTING CO AND H2 TO NORMALLY LIQUID HYDROCARBONS OF HIGH OLEFINIC CONTENT WHICH COMPRISES CONTACTING IN A ONCE-THROUGH OPERATION CO AND H2 IN SYNTHESIS PROPORTIONS IN A REACTION ZONE AT SYNTHESIS CONDITIONS WITH A DENSE TURBULENT FLUIDIZED MASS OF FINELY DIVIDED SYNTHESIS CATALYST, SAID CATALYST COMPRISING A SILICA GEL SUPPORT CARRYING AS ACTIVE COMPONENT A MIXTURE OF COBALT AND IRON PROMOTED WITH A MINOR AMOUNT OF THORIA, THE WT. RATIO OF IRON TO CABALT BEING IN THE RANGE OF FROM ABOUT 0.6/1 TO 2/1 AND THE THORIA BEING PRESENT IN THE RANGE OF ABOUT 1 TO 5% OF THE TOTAL WEIGHT OF THE CATALYST, AND RECOVERING FROM SAID ZONE A PRODUCT STREAM INCLUDING A TAIL GAS ESSENTIALLY FREE OF CARBON DIOXIDE AND A NORMALLY LIQUID PRODUCT CONTAINING AT LEAST ABOUT 60 VOLUME % OF UNSATURATED HYDROCARBONS.
Claim 2
Dependent Claim
140 words
AN IMPROVED PROCESS FOR CONVERTING CO AND H2 TO NORMALLY LIQUID HYDROCARBONS OF HIGH OLEFINIC CONTENT WHICH COMPRISES CONTACTING IN A ONCE-THROUGH OPERATION CO AND H2 IN SYNTHESIS PROPORTIONS IN A REACTION ZONE AT SYNTHESIS CONDITIONS WITH A DENSE TURBULENT FLUIDIZED MASS OF FINELY DIVIDED SYNTHESIS CATALYST, SAID CATALYST COMPRISING A SILICA GEL SUPPORT CARRYING AS ACTIVE COMPONENT A MIXTURE OF COBALT AND IRON PROMOTED WITH A MINOR AMOUNT OF THORIA, THE WT. RATIO OF IRON TO CABALT BEING IN THE RANGE OF FROM ABOUT 0.6/1 TO 2/1 AND THE THORIA BEING PRESENT IN THE RANGE OF ABOUT 1 TO 5% OF THE TOTAL WEIGHT OF THE CATALYST, AND RECOVERING FROM SAID ZONE A PRODUCT STREAM INCLUDING A TAIL GAS ESSENTIALLY FREE OF CARBON DIOXIDE AND A NORMALLY LIQUID PRODUCT CONTAINING AT LEAST ABOUT 60 VOLUME % OF UNSATURATED HYDROCARBONS.
References Cited (Backward Citations)
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Cited
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US2488128A
Cited
US2550442A
Cited
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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) | 1959-02-20 | 1959-08-22 | 1960-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-20 | 1963-08-22 | 1964-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-20 | 1967-08-22 | 1968-02-21 | $7700.00 | Window Closed / Lapsed |