Patent US3281483A successfully refreshed from Google Patents.
US3281483A
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Disproportionation of alkyl aromatic hydrocarbons in the presence of hydrogen mordenite
Assignee: Shell USA Inc
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Filing: 1963-08-15
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Granted: 1966-10-25
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Expires: 1983-08-15
Abstract
No abstract record available.
Inventors
- 👤 Hans A Benesi
- 👤 Dvoretzky Isaac
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:53
CPC Classifications
C; C07; C07C; C07C6/00; C07C6/08; C07C6/12; C07C6/123; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/18; C07C5/00; C07C5/22; C07C5/27; C07C5/2702; C07C5/2708
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A PROCESS FOR THE DISPROPORTIONATING OF AN ALKYL AROMTIC HYDROGEN HAVING FROM 7 TO ABOUT 15 CARBON ATOMS PER MOLECULE WHICH COMPRISES CONTACTING SAID ALKYLAROMATIC IN A DISPROPORTIONATION REACTION ZONE AT A TEMPERATURE IN THE RANGE FROM ABOUT 200* TO ABOUT 600*C. WITH A CATALYST ESSENTIALLY OF HYDROGEN MORDENITE, AND RECOVERING FROM THE REACTION ZONE EFFUENT DISPROPORTIONATION PRODUCTS OF HIGHER AND LOWER NUMBER OF CARBON ATOMS THAN SAID ALKYLAROMATIC.
Claim 2
Dependent Claim
69 words
A PROCESS FOR THE DISPROPORTIONATING OF AN ALKYL AROMTIC HYDROGEN HAVING FROM 7 TO ABOUT 15 CARBON ATOMS PER MOLECULE WHICH COMPRISES CONTACTING SAID ALKYLAROMATIC IN A DISPROPORTIONATION REACTION ZONE AT A TEMPERATURE IN THE RANGE FROM ABOUT 200* TO ABOUT 600*C. WITH A CATALYST ESSENTIALLY OF HYDROGEN MORDENITE, AND RECOVERING FROM THE REACTION ZONE EFFUENT DISPROPORTIONATION PRODUCTS OF HIGHER AND LOWER NUMBER OF CARBON ATOMS THAN SAID ALKYLAROMATIC.
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) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |