Patent US2976331A successfully refreshed from Google Patents.
US2976331A
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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 06:24
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.
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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 |