Patent US3409681A successfully refreshed from Google Patents.
US3409681A
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Method of making novel bimetallic heterogeneous catalysts and their use in hydrocarbon conversions
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1965-05-21
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Granted: 1968-11-05
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Expires: 1985-05-21
Abstract
No abstract record available.
Inventors
- 👤 Wolfram R Kroll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:18
CPC Classifications
C; C10; C10G; C10G45/00; C10G45/44; C10G45/46; B; B01; B01J; B01J31/00; B01J31/02; B01J31/12; B01J31/14; B01J31/143; B01J31/16; B01J31/22; B01J31/2204; B01J31/2208; B01J31/2226; B01J31/223; B01J31/2234; B01J31/26; B01J37/00; B01J37/02; B01J37/03; B01J37/16; C07; C07C; C07C209/00; C07C209/44; C07C209/48; C07C5/00; C07C5/02; C07C5/03; C07C5/05; C07C5/08; C07C5/10; C07C5/22; C07C5/23; C07C5/25; C07C5/2506; C07C5/2562; C07C5/2575; C07C5/2581; C07C5/42; C07C5/50; C07C5/52; C07C7/00; C07C7/148; C07C7/163; C07C7/167; C07D; C07D215/00; C07D215/02; C07D215/04; C07D215/06; C10G45/32; C10G45/34; B01J2231/00; B01J2231/60; B01J2231/64; B01J2231/641; B01J2231/643; B01J2231/645; B01J2231/646; B01J2531/00; B01J2531/60; B01J2531/70; B01J2531/80; B01J2531/84; B01J2531/842; B01J2531/845; B01J2531/847; C07C2531/00; C07C2531/02; C07C2531/12; C07C2531/14; C07C2531/16; C07C2531/22; C07C2601/00; C07C2601/06; C07C2601/10; C07C2601/12; C07C2601/16
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
102 words
A PROCESS CONSISTING ESSENTIALLY OF HEATING A CYCLIC OLEFIN IN THE LIQUID PHASE IN THE REGION OF THE BOILING POINT OF SAID COMPOUND IN THE PRESENCE OF A CATALYST PRECIPITATED BY THE REACTION OF AT LEAST ONE TRANSITION METAL CHELATE SELECTED FROM THE GROUP CONSISTING OF IRON, COBALT, NICKEL AND PLATINUM WITH TRIMETHYLALUMINUM AT A TEMPERTURE IN THE RANGE OF -10* TO +100*C. IN THE PRESENCE OF AN INERT SOLVENT, SAID TRANSITION METAL AND ALUMINUM BEING IN A MOLAR RATIO OF 1:1 TO 1:20 AND RECOVERING A REACTION PRODUCT COMPRISING HYDROCARBONS MORE HIGHLY UNSATURATED AND LESS HIGHLY UNSATURATED THAN SAID CYCLIC OLEFIN.
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) | 1971-11-05 | 1972-05-06 | 1972-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-05 | 1976-05-06 | 1976-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-05 | 1980-05-06 | 1980-11-05 | $7700.00 | Window Closed / Lapsed |