Patent US2853429A successfully refreshed from Google Patents.
US2853429A
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Method for catalytically hydrodesulfurizing petroleum oils
Assignee: Compagnie Francaise de Raffinage SA
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Filing: 1956-03-22
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Granted: 1958-09-23
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Expires: 1976-03-22
Abstract
No abstract record available.
Inventors
- 👤 Gislon Andre
- 👤 Valet Andre Marie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:11
CPC Classifications
B; B01; B01J; B01J37/00; B01J37/0009; B01J37/0018; B01J23/00; B01J23/16; B01J23/24; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/88; B01J23/882; C; C10; C10G; C10G45/00; C10G45/02; C10G45/04; C10G45/06; C10G45/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
IN A PROCESS FOR DESULFURIZING HYDROCARBON PRODUCTS OF THE PETROLEUM TYPE CONTAINING SULFUR, BY THE ACTION OF HYDROGEN OR OF HYDROGEN CONTAINING GASES AT A TEMPERATURE BETWEEN 320* AND 450*C. AND AT A PRESSURE BETWEEN 1 AND 100 ATMOSPHERES, THE IMPROVEMENT WHICH COMPRISES TREATING SAID PRODUCTS IN THE PRESENCE OF A CATALYST HAVING GOOD MECHANICAL STRENGTH, SAID CATALYST HAVING BEEN PREPARED IN THE FORM OF A CEMENT OBTAINED BY THE REACTION OF AN ACID OF A METAL OF GROUP VI WITH MAGNESIUM OXIDE AND A GROUP VIII METAL SALT, SAID CATALYST ALSO HAVING BEEN MADE POROUS BY THE DECOMPOSITION OF HYDROGEN PEROXIDE BY ALUMINUM.
Claim 2
Dependent Claim
104 words
IN A PROCESS FOR DESULFURIZING HYDROCARBON PRODUCTS OF THE PETROLEUM TYPE CONTAINING SULFUR, BY THE ACTION OF HYDROGEN OR OF HYDROGEN CONTAINING GASES AT A TEMPERATURE BETWEEN 320* AND 450*C. AND AT A PRESSURE BETWEEN 1 AND 100 ATMOSPHERES, THE IMPROVEMENT WHICH COMPRISES TREATING SAID PRODUCTS IN THE PRESENCE OF A CATALYST HAVING GOOD MECHANICAL STRENGTH, SAID CATALYST HAVING BEEN PREPARED IN THE FORM OF A CEMENT OBTAINED BY THE REACTION OF AN ACID OF A METAL OF GROUP VI WITH MAGNESIUM OXIDE AND A GROUP VIII METAL SALT, SAID CATALYST ALSO HAVING BEEN MADE POROUS BY THE DECOMPOSITION OF HYDROGEN PEROXIDE BY ALUMINUM.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-22 | 1962-03-24 | 1962-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-22 | 1966-03-24 | 1966-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-22 | 1970-03-24 | 1970-09-23 | $7700.00 | Window Closed / Lapsed |