US2884469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Upgrading fused benzenoid ring hydrocarbons
Assignee: Standard Oil Co
•
Filing: 1956-03-26
•
Granted: 1959-04-28
•
Expires: 1976-03-26
Abstract
No abstract record available.
Inventors
- 👤 David A Mccaulay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:38
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/42; C07C5/50; C07C5/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A PROCESS WHICH COMPRISES CONTACTING, UNDER SUBSTANTIALLY ANHYDROUS CONDITIONS, A HYDROCARBON FEED CONTAINING AN AROMATIC HYDROCARBON HAVING AT LEAST TWO FUSED BENZENOID RINGS AND A METHYLCYCLOHEXANE, IN A MOLAR RATIO OF SAID CYCLOHEXANE TO SAID AROMATIC HYDROCARBON OF AT LEAST ABOUT 2, WITH A CATALYST CONSISTING ESSENTIALLY OF LIQUID HF, IN AN AMOUNT BETWEEN ABOUT 50 AND 500 VOLUME PRECENT BASED ON SAID AROMATIC HYDROCARON, AND BF3, IN AN AMOUNT FROM ABOUT 1 TO 5 MOLES PER MOLE OF SAID AROMATIC HYDROCARBON, AT A TEMPERATURE BETWEEN ABOUT 15*C. AND 100*C. FOR A TIME BETWEEN ABOUT 5 MINUTES AND 3 HOURS, THE LONGER TIMES CORRESPONDING TO THE LOWER TEMPERATURES, SEPARATING AN ACID PHASE FROM A HYDROCARBON PHASE, AND SEPARATING UNREACTEE METHYLCYCLOHEXANE FROM HYDROCARBON PRODUCT, WHICH PRODUCT IS CHARACTERIZED BY A HYDROGEN CONTENT HIGHER THAN SAID FEED.
Claim 2
Dependent Claim
135 words
A PROCESS WHICH COMPRISES CONTACTING, UNDER SUBSTANTIALLY ANHYDROUS CONDITIONS, A HYDROCARBON FEED CONTAINING AN AROMATIC HYDROCARBON HAVING AT LEAST TWO FUSED BENZENOID RINGS AND A METHYLCYCLOHEXANE, IN A MOLAR RATIO OF SAID CYCLOHEXANE TO SAID AROMATIC HYDROCARBON OF AT LEAST ABOUT 2, WITH A CATALYST CONSISTING ESSENTIALLY OF LIQUID HF, IN AN AMOUNT BETWEEN ABOUT 50 AND 500 VOLUME PRECENT BASED ON SAID AROMATIC HYDROCARON, AND BF3, IN AN AMOUNT FROM ABOUT 1 TO 5 MOLES PER MOLE OF SAID AROMATIC HYDROCARBON, AT A TEMPERATURE BETWEEN ABOUT 15*C. AND 100*C. FOR A TIME BETWEEN ABOUT 5 MINUTES AND 3 HOURS, THE LONGER TIMES CORRESPONDING TO THE LOWER TEMPERATURES, SEPARATING AN ACID PHASE FROM A HYDROCARBON PHASE, AND SEPARATING UNREACTEE METHYLCYCLOHEXANE FROM HYDROCARBON PRODUCT, WHICH PRODUCT IS CHARACTERIZED BY A HYDROGEN CONTENT HIGHER THAN SAID FEED.
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) | 1962-04-27 | 1962-10-27 | 1963-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-27 | 1966-10-27 | 1967-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-27 | 1970-10-27 | 1971-04-28 | $7700.00 | Window Closed / Lapsed |