Patent US3183278A successfully refreshed from Google Patents.
US3183278A
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Process for hydrogenating carbocyclic aromatic compounds
Assignee: Engelhard Industries Inc
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Filing: 1962-11-20
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Granted: 1965-05-11
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Expires: 1982-11-20
Abstract
No abstract record available.
Inventors
- 👤 Jr John J Koch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:09
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/02; C07C5/10; B; B01; B01J; B01J23/00; B01J23/38; B01J23/40; B01J23/42; B01J23/44; B01J23/46; B01J23/462; B01J23/464; B01J37/00; B01J37/02; B01J37/03; C07C2523/00; C07C2523/38; C07C2523/40; C07C2523/42; C07C2523/44; C07C2523/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A PROCESS FOR THE NUCLEAR HYDROGENATION OF A CARBOCYCLIC AROMTIC COMPOUND OF THE GROUP CONSISTING OF UNSUBSTITUTED CARBOCYCLIC AROMATIC COMPOUNDS AND NUCLEAR SUBSTITUTION DERIVATIVES THEREOF WHEREIN THE SUBSTITUENT IS AN ALKYL RADICAL, WHICH COMPRISES CONTACTING THE COMPOUND IN THE PRESENCE OF HYDROGEN WITH A SUPPORTED RUTHENIUM-CONTAINING CATALYST ALSO CONTAINING AS PROMOTER A MATERIAL SELECTED FROM THE GROUP CONSISTING OF PLATIUM, RHODIUM AND PALLADIUM, THE RUTHENIUM CONTENT OF THE CATALYST BEING AT LEAST ABOUT 20 PERCENT BY WEIGHT OF THE CATALYTICALLY ACTIVE METAL CONTENT OF THE CATALYST.
Claim 2
Dependent Claim
86 words
A PROCESS FOR THE NUCLEAR HYDROGENATION OF A CARBOCYCLIC AROMTIC COMPOUND OF THE GROUP CONSISTING OF UNSUBSTITUTED CARBOCYCLIC AROMATIC COMPOUNDS AND NUCLEAR SUBSTITUTION DERIVATIVES THEREOF WHEREIN THE SUBSTITUENT IS AN ALKYL RADICAL, WHICH COMPRISES CONTACTING THE COMPOUND IN THE PRESENCE OF HYDROGEN WITH A SUPPORTED RUTHENIUM-CONTAINING CATALYST ALSO CONTAINING AS PROMOTER A MATERIAL SELECTED FROM THE GROUP CONSISTING OF PLATIUM, RHODIUM AND PALLADIUM, THE RUTHENIUM CONTENT OF THE CATALYST BEING AT LEAST ABOUT 20 PERCENT BY WEIGHT OF THE CATALYTICALLY ACTIVE METAL CONTENT 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) | 1968-05-10 | 1968-11-09 | 1969-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-10 | 1972-11-09 | 1973-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-10 | 1976-11-09 | 1977-05-11 | $7700.00 | Window Closed / Lapsed |