Patent US908085A successfully refreshed from Google Patents.
US2976331A
Expired / Lapsed
US
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Preparation of aromatics
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1957-07-31
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Granted: 1961-03-21
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Expires: 1977-07-31
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles Newton Kimberlin
- 👤 Mattox William Judson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:01
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/42; C07C5/50; C07C5/52; C07C5/02; C07C5/03; C07C5/32; C07C5/367; C07C2529/00; C07C2529/04; C07C2529/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A METHOD FOR SIMULTANEOUSLY EFFECTING THE CATALYTIC DEHYDROGENATION OF A NAPHTHENIC HYDROCARBON TO AN AROMATIC AND THE CATALYTIC HYDROGENATION OF AN OLEFIN TO PARAFFINS WHICH COMPRISES CONTACTING A STREAM CONSISTING OF AT LEAST ONE NAPHTHENIC HYDROCARBON AND AT LEAST ONE OLEFIN WITH A HYDROGEN TRANSFER CATALYST AT A TEMPERATURE IN THE RANGE OF ABOUT 350$ TO 850$F., A PRESSURE IN THE RANGE OF ABOUT ATMOSPHERIC TO 750 P.S.I.G. AND A FEED RATE IN THE RANGE OF ABOUT 0.05 TO 5.0 W./HR./W., SAID CATALYST COMPRISING A CRYSTALLINE METALLO-ALLUMINO-SILICATE HAVING UNIFORM PORE OPENINGS OF FROM ABOUT 10 TO 13 ANGSTROM UNITS AND WHEREIN THE METAL CONSTITUENT IS A METAL SELECTED FROM THE GROUP CONSISTING OF SODIUM, VANADIUM, ZIRCONIUM, GROUP IIA, IIB, VIB, VIIB AND VIII OF THE PERIODIC TABLE.
Claim 2
Independent Claim
127 words
A METHOD FOR SIMULTANEOUSLY EFFECTING THE CATALYTIC DEHYDROGENATION OF A NAPHTHENIC HYDROCARBON TO AN AROMATIC AND THE CATALYTIC HYDROGENATION OF AN OLEFIN TO PARAFFINS WHICH COMPRISES CONTACTING A STREAM CONSISTING OF AT LEAST ONE NAPHTHENIC HYDROCARBON AND AT LEAST ONE OLEFIN WITH A HYDROGEN TRANSFER CATALYST AT A TEMPERATURE IN THE RANGE OF ABOUT 350$ TO 850$F., A PRESSURE IN THE RANGE OF ABOUT ATMOSPHERIC TO 750 P.S.I.G. AND A FEED RATE IN THE RANGE OF ABOUT 0.05 TO 5.0 W./HR./W., SAID CATALYST COMPRISING A CRYSTALLINE METALLO-ALLUMINO-SILICATE HAVING UNIFORM PORE OPENINGS OF FROM ABOUT 10 TO 13 ANGSTROM UNITS AND WHEREIN THE METAL CONSTITUENT IS A METAL SELECTED FROM THE GROUP CONSISTING OF SODIUM, VANADIUM, ZIRCONIUM, GROUP IIA, IIB, VIB, VIIB AND VIII OF THE PERIODIC TABLE.
References Cited (Backward Citations)
US1728732A
Cited
US2283172A
Cited
US2378057A
Cited
US2689305A
Cited
US2626286A
Cited
US2834429A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-20 | 1964-09-19 | 1965-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-20 | 1968-09-19 | 1969-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-20 | 1972-09-19 | 1973-03-21 | $7700.00 | Window Closed / Lapsed |