US2987560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of aromatics and catalysts therefor
Assignee: BP PLC
•
Filing: 1957-11-04
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Granted: 1961-06-06
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Expires: 1977-11-04
Abstract
No abstract record available.
Inventors
- 👤 Holmes Peter Desmond
- 👤 Stalley John Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:13
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/32; C07C5/373; C07C5/393; C07C5/41; C07C5/415; C07C5/417; C10; C10G; C10G35/00; C10G35/04; C10G35/06; C10G35/085; C10G35/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A PROCESS FOR THE TREATMENT OF A FEED STOCK IN WHICH AT LEAST THE MAJOR PORTION THEREOF CONSISTS OF NON-AROMATIC HYDROCARBONS HAVING AT LEAST SIX CARBON ATOMS IN THE MOLECULE TO FORM AROMATICS WITH SUBSTANTIALLY NO DELETERIOUS SIDE REACTIONS OCCURRING, COMPRISING CONTACTING THE FEEDSTOCK IN A REACTION ZONE IN THE PRESENCE OF A CATALYST CONSISTING ESSENTIALLY OF FROM 0.01 TO 5% BY WEIGHT OF PLATINUM, 0.01 TO 5% BY WEIGHT OF AN ALKALI METAL IN COMBINED FORM, AND THE BALANCE ALUMINA, AT A TEMPERATURE OF FROM 400-600*C., AND AT A PRESSURE OF 0-200 P.S.I. GA., AND RECOVERING AROMATICS THEREFROM.
Claim 2
Dependent Claim
99 words
A PROCESS FOR THE TREATMENT OF A FEED STOCK IN WHICH AT LEAST THE MAJOR PORTION THEREOF CONSISTS OF NON-AROMATIC HYDROCARBONS HAVING AT LEAST SIX CARBON ATOMS IN THE MOLECULE TO FORM AROMATICS WITH SUBSTANTIALLY NO DELETERIOUS SIDE REACTIONS OCCURRING, COMPRISING CONTACTING THE FEEDSTOCK IN A REACTION ZONE IN THE PRESENCE OF A CATALYST CONSISTING ESSENTIALLY OF FROM 0.01 TO 5% BY WEIGHT OF PLATINUM, 0.01 TO 5% BY WEIGHT OF AN ALKALI METAL IN COMBINED FORM, AND THE BALANCE ALUMINA, AT A TEMPERATURE OF FROM 400-600*C., AND AT A PRESSURE OF 0-200 P.S.I. GA., AND RECOVERING AROMATICS THEREFROM.
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) | 1964-06-05 | 1964-12-05 | 1965-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-05 | 1968-12-05 | 1969-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-05 | 1972-12-05 | 1973-06-06 | $7700.00 | Window Closed / Lapsed |