US2870228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dehydrogenation of hydrocarbons
Assignee: Shell Development Co
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Filing: 1956-12-24
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Granted: 1959-01-20
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Expires: 1976-12-24
Abstract
No abstract record available.
Inventors
- 👤 Warren E Armstrong
- 👤 Carroll Z Morgan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:28
CPC Classifications
B; B01; B01J; B01J27/00; C; C07; C07C; C07C5/00; C07C5/32; C07C5/327; C07C5/333; C07C5/3332
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A PROCESS FOR THE DEHYDROGENATION OF A HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF N-BUTYLENE AND ETHYL BENZENE WHICH COMPRISES CONTACTING SAID HYDROCARBON IN THE PRESENCE OF 2-30 MILS OF STEAM PER MOL OF HYDROCARBON UNDER DEHYDROGENATION CONDITIONS WITH A CATALYST CONSISTING OF AT LEAST 35% OF AN IRON OXIDE HAVING A DEGREE OF OXIDATION FROM FE3O4 TO FE2O3, THE TOTAL OXIDE CALCULATED AS FE2O3, POTASSIUM CARBONATE IN AN AMOUNT EQUIVALENT TO AT LEAST 6% OF K2O, O.2 TO 9% OF PHOSPHATE RADICALS AS A PHOSPHATE OF A METAL SELECTED FROM THE GROUP CONSISTING OF ALKALI METALS AND ALKALINE EARTH METALS, AND ANY REMAINDER CONSISTING OF AN OXIDE OF A HEAVY METAL SELECTED FROM THE GROUP CONSISTING OF CR, MN, BI. W, MO AND CE, THE PERCENTAGES BEING BY WEIGHT OF THE TOTAL OF THE RECITED COMPONENTS OF THE CATALYST:
Claim 2
Dependent Claim
140 words
A PROCESS FOR THE DEHYDROGENATION OF A HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF N-BUTYLENE AND ETHYL BENZENE WHICH COMPRISES CONTACTING SAID HYDROCARBON IN THE PRESENCE OF 2-30 MILS OF STEAM PER MOL OF HYDROCARBON UNDER DEHYDROGENATION CONDITIONS WITH A CATALYST CONSISTING OF AT LEAST 35% OF AN IRON OXIDE HAVING A DEGREE OF OXIDATION FROM FE3O4 TO FE2O3, THE TOTAL OXIDE CALCULATED AS FE2O3, POTASSIUM CARBONATE IN AN AMOUNT EQUIVALENT TO AT LEAST 6% OF K2O, O.2 TO 9% OF PHOSPHATE RADICALS AS A PHOSPHATE OF A METAL SELECTED FROM THE GROUP CONSISTING OF ALKALI METALS AND ALKALINE EARTH METALS, AND ANY REMAINDER CONSISTING OF AN OXIDE OF A HEAVY METAL SELECTED FROM THE GROUP CONSISTING OF CR, MN, BI. W, MO AND CE, THE PERCENTAGES BEING BY WEIGHT OF THE TOTAL OF THE RECITED COMPONENTS OF THE CATALYST:
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) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |