US3204009A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the isomerization of olefins
Assignee: Sinclair Research Inc
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Filing: 1959-11-23
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Granted: 1965-08-31
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Expires: 1979-11-23
Abstract
No abstract record available.
Inventors
- 👤 Willis C Keith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:14
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/22; C07C5/23; C07C5/25; C07C5/2506; C07C5/2512; B; B01; B01J; B01J23/00; B01J23/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A METHOD FOR THE SELECTIVE CARBON TO CARBON DOUBLE BOND ISOMERIZATION WITHOUT SUBSTANTIAL CRACKING OR SKELETAL ISOMERIZATION OF ALIPHATIC MONOOLEFIN OF 4 TO 8 CARBON ATOMS WHICH COMPRISES CONTACTING SAID OLEFIN UNDER ISOMERIZATION CONDITIONS AT AN ELEVATED TEMPERATURE OF ABOUT 200-1100* F. AND AT AN OLEFIN PARTIAL PRESSURE OF 15 TO 300 P.S.I.A. WITH AN ANIOMIC CATALYST PREPARED BY CALCINING AT A TEMPERATURE OF ABOUT 600 TO 1300* F. A COMPOSITION CONSISTING ESSENTIALLY OF ALUMINA AND ABOUT 1 TO 7.6 MILLIEQUIVALENTS PER GRAM OF SAID ALUMINA OF AN ALKALI METAL OXIDE, SAID OXIDE BEING SUFFICIENT TO GIVE AN ANIONIC CATALYST.
Claim 2
Independent Claim
100 words
A METHOD FOR THE SELECTIVE CARBON TO CARBON DOUBLE BOND ISOMERIZATION WITHOUT SUBSTANTIAL CRACKING OR SKELETAL ISOMERIZATION OF ALIPHATIC MONOOLEFIN OF 4 TO 8 CARBON ATOMS WHICH COMPRISES CONTACTING SAID OLEFIN UNDER ISOMERIZATION CONDITIONS AT AN ELEVATED TEMPERATURE OF ABOUT 200-1100* F. AND AT AN OLEFIN PARTIAL PRESSURE OF 15 TO 300 P.S.I.A. WITH AN ANIOMIC CATALYST PREPARED BY CALCINING AT A TEMPERATURE OF ABOUT 600 TO 1300* F. A COMPOSITION CONSISTING ESSENTIALLY OF ALUMINA AND ABOUT 1 TO 7.6 MILLIEQUIVALENTS PER GRAM OF SAID ALUMINA OF AN ALKALI METAL OXIDE, SAID OXIDE BEING SUFFICIENT TO GIVE AN ANIONIC CATALYST.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-30 | 1969-03-01 | 1969-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-30 | 1973-03-01 | 1973-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-30 | 1977-03-01 | 1977-08-31 | $7700.00 | Window Closed / Lapsed |