Patent US2967822A successfully refreshed from Google Patents.
US2967822A
Expired / Lapsed
US
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Catalytic reforming of petroleum hydrocarbons with an alumina-chromium oxide catalyst comprising boron oxide
Assignee: BP PLC
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Filing: 1957-12-04
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Granted: 1961-01-10
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Expires: 1977-12-04
Abstract
No abstract record available.
Inventors
- 👤 Moy John Arthur Edgar
- 👤 Burbridge Bernard Whiting
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:25
CPC Classifications
C; C10; C10G; C10G59/00; C10G59/02; B; B01; B01J; B01J23/00; B01J23/16; C10G35/00; C10G35/04; C10G35/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A PROCESS FOR THE TREATMENT OF A FEEDSTOCK CONSISTING ESSENTIALLY OF A MIXTURE OF C5 TO C7 NON-AROMATIC HYDROCARBONS TO EFFECT A DEHYDROGENATION OR DEHYDROCYCLIZATION THEREOF COMPRISING CONTACTING THE FEEDSTOCK IN A REACTION ZONE WITH A CATALYST CONSISTING ESSENTIALLY OF 5 TO 25% OF CHROMIUM OXIDE, 0.1 TO 5% BORON, EXPRESSED AS OXIDE, AND BALANCE ALUMINA, AT A TEMPERATURE OF ABOUT 450 TO 580*C., AT A PRESSURE NOT IN EXCESS OF ABOUT 50 P.S.I.G., AT A SPACE VELOCITY OF 0.1 TO 1 V./V./ HR., AND IN THE ABSENCE OF ADDED HYDROGEN TO THE REACTION ZONE, AND RECOVERING A PRODUCT HAVING INCREASED AROMATIC CONTENT.
Claim 2
Dependent Claim
103 words
A PROCESS FOR THE TREATMENT OF A FEEDSTOCK CONSISTING ESSENTIALLY OF A MIXTURE OF C5 TO C7 NON-AROMATIC HYDROCARBONS TO EFFECT A DEHYDROGENATION OR DEHYDROCYCLIZATION THEREOF COMPRISING CONTACTING THE FEEDSTOCK IN A REACTION ZONE WITH A CATALYST CONSISTING ESSENTIALLY OF 5 TO 25% OF CHROMIUM OXIDE, 0.1 TO 5% BORON, EXPRESSED AS OXIDE, AND BALANCE ALUMINA, AT A TEMPERATURE OF ABOUT 450 TO 580*C., AT A PRESSURE NOT IN EXCESS OF ABOUT 50 P.S.I.G., AT A SPACE VELOCITY OF 0.1 TO 1 V./V./ HR., AND IN THE ABSENCE OF ADDED HYDROGEN TO THE REACTION ZONE, AND RECOVERING A PRODUCT HAVING INCREASED AROMATIC CONTENT.
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) | 1964-01-10 | 1964-07-11 | 1965-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-10 | 1968-07-11 | 1969-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-10 | 1972-07-11 | 1973-01-10 | $7700.00 | Window Closed / Lapsed |