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Patent US3236909A successfully refreshed from Google Patents.
US3236909A
Expired / Lapsed
US
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Isomerization of olefins
Assignee: Halcon Research and Development Corp
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Filing: 1963-01-17
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Granted: 1966-02-22
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Expires: 1983-01-17
Abstract
No abstract record available.
Inventors
- 👤 Charles N Winnick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:25
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/22; C07C5/2206; C07C5/222; C07C5/23; C07C5/25; C07C5/2506; C07C5/2518; C07C2529/00; C07C2529/04; C07C2529/06
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
49 words
A PROCESS FOR THE ISOMERIZATION OF MONO-OLEFINS, COMPRISING CONTACTING A MONO-OLEFIN CONTAINING A TERTIARY UNSATURATED CARBON ATOM IN THE LIQUID PHASE WITH A CATALYST COMPRISING AN ACIDIC ZEOLITE WHICH HAS BEEN NEUTRALIZED AND CONTACTED WITH A BUFFERED ACIDIC SOLUTION HAVING A PH IN THE RANGE OF 2.5 TO 6.
Claim 2
Dependent Claim
49 words
A PROCESS FOR THE ISOMERIZATION OF MONO-OLEFINS, COMPRISING CONTACTING A MONO-OLEFIN CONTAINING A TERTIARY UNSATURATED CARBON ATOM IN THE LIQUID PHASE WITH A CATALYST COMPRISING AN ACIDIC ZEOLITE WHICH HAS BEEN NEUTRALIZED AND CONTACTED WITH A BUFFERED ACIDIC SOLUTION HAVING A PH IN THE RANGE OF 2.5 TO 6.
Claim 3
Dependent Claim
72 words
A CATALYST USEFUL FOR THE ISOMERIZATION OF MONOOLEFINS CONTAINING AN UNSATURATED TERTIARY CARBON ATOM, SAID CATALYST HAVING BEEN PREPARED BY NEUTRALIZING AN ACIDIC SILICA-ALUMINA ZEOLITE WITH A BASIC AQUEOUS SOLUTION WASHING THE NEUTRALIZED PRODUCT UNTIL THE WASHINGS ARE NEUTRAL, CONTACTING THE WASH MATERIAL WITH A BUFFERED ACIDIC SOLUTION HAVING A PH IN THE RANGE OF 2.5 TO 6, WASHING THE BUFFERED MATERIAL UNTIL THE WASHINGS ARE NEUTRAL, AND DRYING THE RESULTING CATALYST.
Claim 4
Dependent Claim
72 words
A CATALYST USEFUL FOR THE ISOMERIZATION OF MONOOLEFINS CONTAINING AN UNSATURATED TERTIARY CARBON ATOM, SAID CATALYST HAVING BEEN PREPARED BY NEUTRALIZING AN ACIDIC SILICA-ALUMINA ZEOLITE WITH A BASIC AQUEOUS SOLUTION WASHING THE NEUTRALIZED PRODUCT UNTIL THE WASHINGS ARE NEUTRAL, CONTACTING THE WASH MATERIAL WITH A BUFFERED ACIDIC SOLUTION HAVING A PH IN THE RANGE OF 2.5 TO 6, WASHING THE BUFFERED MATERIAL UNTIL THE WASHINGS ARE NEUTRAL, AND DRYING THE RESULTING 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) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |