Patent US4269077A successfully refreshed from Google Patents.
US3662021A
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Process for preparing linear olefins
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1968-12-13
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Granted: 1972-05-09
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Expires: 1988-12-13
Abstract
Abstract IN A PROCESS FOR PREPARING LINEAR OLEFINS WHICH COMPRISES POLYMERIZING AN ETHYLENE CONTAINING GAS IN THE PRESENCE OF A CATALYST COMPRISING THE REACTION PRODUCT OF A TRANSITION METAL HALIDE AND AN ALUMINUM ALKYL COMPOUND IN THE PRESENCE OF A DILUENT AND MAINTAINING THE MODE RATIO OF ETHYLENE TO OLEFIN REACTION PRODUCT AT A RELATIVELY HIGH LEVEL SO AS TO PRODUCE COMPRISING AT LEAST 90 MOLE PERCENT LINEAR OLEFINS, THE PROCESS IS IMPROVED AND THE PRODUCT PURITY IS MAINTAINED BY KILLING THE ACTIVITY OF THE CATALYST PRIOR TO THE OCCURENCE OF DELETERIOUS SIDE REACTION WHICH TENDS TO REDUCE THE PRODUCT PURITY.
Inventors
- 👤 Arthur W Langer Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:32
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/02; B01J31/12; B01J31/14; B01J31/143; B01J31/16; B01J31/22; B01J31/2204; B01J31/2208; B01J31/2226; B01J31/26; B01J31/38; C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/26; C07C2/30; C08; C08F; C08F10/00; C08F10/02; B01J2231/00; B01J2231/10; B01J2231/12; B01J2231/20; B01J2531/00; B01J2531/40; B01J2531/46; C07C2527/00; C07C2527/06; C07C2527/133; C07C2527/135; C07C2531/00; C07C2531/02; C07C2531/04; C07C2531/12; C07C2531/14; C07C2531/26; C07C2531/36; C07C2531/38; C08F110/00; C08F110/02
Claims Analysis
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References Cited (Backward Citations)
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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) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |