Patent US3206525A successfully refreshed from Google Patents.
US3206525A
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Process for isomerizing paraffinic hydrocarbons
Assignee: Sinclair Refining Co
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Filing: 1960-10-26
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Granted: 1965-09-14
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Expires: 1980-10-26
Abstract
No abstract record available.
Inventors
- 👤 Glenn O Michaels
- 👤 Mooi John
- 👤 Carl D Keith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:57
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/22; C07C5/27; C07C5/2767; C07C5/277; C07C5/2791
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
77 words
IN A METHOD OF ISOMERIZING A C4-C9 N-PARAFFINIC CONTAINING HYDROCARBON FEED, THE STEP COMPRISING CONTACTING SAID FEED IN THE VAPOR PHASE WITH A CATALYST AT A TEMPERATURE OF ABOUT 500 TO 750*F., SUPERATMOSPHERIC PRESSURE, AND IN THE PRESENCE OF FREE HYDROGEN, SAID CATALYST CONSISTING ESSENTIALLY OF ABOUT 0.1 TO 2% OF A PLATINUM GROUP NOBLE METAL AND NH4BF4 ON AN ACTIVATED ALUMINA, SAID COMPONENT BEING PRESENT IN AN AMOUNT EFFECTIVE TO ENHANCE THE ACTIVITY OF THE CATALYST.
Claim 2
Dependent Claim
77 words
IN A METHOD OF ISOMERIZING A C4-C9 N-PARAFFINIC CONTAINING HYDROCARBON FEED, THE STEP COMPRISING CONTACTING SAID FEED IN THE VAPOR PHASE WITH A CATALYST AT A TEMPERATURE OF ABOUT 500 TO 750*F., SUPERATMOSPHERIC PRESSURE, AND IN THE PRESENCE OF FREE HYDROGEN, SAID CATALYST CONSISTING ESSENTIALLY OF ABOUT 0.1 TO 2% OF A PLATINUM GROUP NOBLE METAL AND NH4BF4 ON AN ACTIVATED ALUMINA, SAID COMPONENT BEING PRESENT IN AN AMOUNT EFFECTIVE TO ENHANCE THE ACTIVITY OF THE CATALYST.
Claim 3
Dependent Claim
79 words
IN A METHOD OF ISOMERIZING A C4 TO C9 N-PARAFFNIC CONTAINING HYDROCARBON FEED, THE STEP COMPRISING CONTACTING SAID FEED IN THE VAPOR PHASE WITH A CATALYST AT A TEMPERATURE OF ABOUT 500 TO 750*F., SUPERATMOSPHERIC PRESSURE, AND IN THE PRESENCE OF FREE HYDROGEN, SAID CATALYST CONSISTING ESSENTIALLY OF ABOUT 0.01 TO 2% OF A PLATINUM GROUP NOBLE METAL AND NI(BF4)2 ON AN ACTIVATED ALUMINA, SAID COMPONENT BEING PRESENT IN AN AMOUNT EFFECTIVE TO ENHANCE THE ACTIVITY OF THE CATALYST
Claim 4
Dependent Claim
79 words
IN A METHOD OF ISOMERIZING A C4 TO C9 N-PARAFFNIC CONTAINING HYDROCARBON FEED, THE STEP COMPRISING CONTACTING SAID FEED IN THE VAPOR PHASE WITH A CATALYST AT A TEMPERATURE OF ABOUT 500 TO 750*F., SUPERATMOSPHERIC PRESSURE, AND IN THE PRESENCE OF FREE HYDROGEN, SAID CATALYST CONSISTING ESSENTIALLY OF ABOUT 0.01 TO 2% OF A PLATINUM GROUP NOBLE METAL AND NI(BF4)2 ON AN ACTIVATED ALUMINA, SAID COMPONENT BEING PRESENT IN AN AMOUNT EFFECTIVE TO ENHANCE THE ACTIVITY OF THE CATALYST
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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) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |