US3352938A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Olefin double-bond isomerization using a mixture of platinum group metals as a catalyst
Assignee: Ethyl Corp
•
Filing: 1964-12-31
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Granted: 1967-11-14
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Expires: 1984-12-31
Abstract
No abstract record available.
Inventors
- 👤 Plonsker Larry
- 👤 John M Mceuen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:15
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/22; C07C5/23; C07C5/25; C07C5/2506; C07C5/2556; B; B01; B01J; B01J23/00; B01J23/38; B01J23/40; B01J23/46; B01J23/462; B01J23/464; B01J23/90; B01J23/96; C07C5/2562; B01J21/00; B01J21/18; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/584; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A PROCESS FOR THE PREPARATION OF A STRAIGHT-CHAIN B-OLEFIN HAVING FROM 4 TO ABOUT 24 CARBON ATOMS FROM THE CORRESPONDING STRAIGHT-CHAIN A-OLEFIN, SAID PROCESS COMPRISING CONTACTING SAID A-OLEFIN WITH FROM ABOUT 5 TO ABOUT 10 WEIGHT PERCENT OF AN ISAOMERIZATION CATALYST CONTAINING ABOUT 5 WEIGHT PERCENT OF A RUTHENIUM-PALLADIUM MIXTURE, SAID MIXTURE CONSISTING SUBSTANTIALLY OF 1 PART RUTHENIUM AND FROM ABOUT 5 TO ABOUT 10 PARTS OF PALLADIUM DISPERSED ON A FINELY DIVIDED ACTIVATED CHARCOAL, SAID PROCESS BEING CARRIED OUT AT ATMOSPHERIC PRESSURE IN AN INERT ATMOSPHERE AND AT ABOUT THE REFLUX TEMPERATURE OF THE SYSTEM.
Claim 2
Dependent Claim
96 words
A PROCESS FOR THE PREPARATION OF A STRAIGHT-CHAIN B-OLEFIN HAVING FROM 4 TO ABOUT 24 CARBON ATOMS FROM THE CORRESPONDING STRAIGHT-CHAIN A-OLEFIN, SAID PROCESS COMPRISING CONTACTING SAID A-OLEFIN WITH FROM ABOUT 5 TO ABOUT 10 WEIGHT PERCENT OF AN ISAOMERIZATION CATALYST CONTAINING ABOUT 5 WEIGHT PERCENT OF A RUTHENIUM-PALLADIUM MIXTURE, SAID MIXTURE CONSISTING SUBSTANTIALLY OF 1 PART RUTHENIUM AND FROM ABOUT 5 TO ABOUT 10 PARTS OF PALLADIUM DISPERSED ON A FINELY DIVIDED ACTIVATED CHARCOAL, SAID PROCESS BEING CARRIED OUT AT ATMOSPHERIC PRESSURE IN AN INERT ATMOSPHERE AND AT ABOUT THE REFLUX TEMPERATURE OF THE SYSTEM.
References Cited (Backward Citations)
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Cited
US3205282A
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US3182097A
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US3248448A
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US3248450A
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US3214487A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |