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US2906794A
Expired / Lapsed
US
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Preparation of olefins
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1956-04-10
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Granted: 1959-09-29
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Expires: 1976-04-10
Abstract
No abstract record available.
Inventors
- 👤 Aldridge Clyde Lee
- 👤 William E Catterall
- 👤 Donald W Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:31
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/86; C07C2/88; C07F; C07F5/00; C07F5/06; C07F5/061; C07F5/062; C08; C08F; C08F10/00; C07C2523/00; C07C2523/70; C07C2523/74; C07C2523/755; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/901
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
A CONTINUOUS PROCESS FOR PRODUCTING STRAIGHT CHAIN OLEFINS WHICH COMPRISES REACTING IN A FIRST ZONE, ETHENE WITH A LOW MOLECULAR WEITHT ALUMINUM TRIALKYL UNDER ELEVATED TEMPERATUREE AND PRESSURES IN THE PRESENCE OF AN INERT DILUENT TO FORM A HIGHER MOLECULAR WEIGHT ALUMINUM TRIALKYL, SEPARATING THE HIGHER MOLECULAR WEIGHT ALUMINUM TRIALKYL FROM SAID INERT DILUENT, REACTING IN A SECOND ZONE SAID HIGHER MOLECULAR WEIGHT ALUMINUM TRIALKYL WITH ETHLENE UNDER ELEVATED TEMPERATURES IN THE PRESENCE OF A DISPLACEMENT CATALYST TO GENERATE OLEFINS CORRESPONDING TO THE ALKYL RADICALS OF THE HIGHER MOLECULAR WEIGHT ALUMINUM TRIALKYL AND ALUMINUM TRIETHYL, PASSING PRODUCT OBTAINED FROM SAID SECOND ZONE TO SAID FIRST ZONE, EMPLOYING SAID GENERATED OLEFINS OF SAID PRODUCT AS DILUENT IN SAID FIRST ZONE, AND REACTING ALUMINUM TRIETHYL FROM SAID SECOND ZONE WITH ETHENE IN SAID FIRST ZONE IN THE PRESENCE OF SAID GENERATED OLEFINS TO FORM HIGHER MOLECULAR WEIGHT ALUMINUM TRIALKYL, AND SEPARATING THE GENERATED OLEFINS AS PRODUCT.
Claim 2
Dependent Claim
154 words
A CONTINUOUS PROCESS FOR PRODUCTING STRAIGHT CHAIN OLEFINS WHICH COMPRISES REACTING IN A FIRST ZONE, ETHENE WITH A LOW MOLECULAR WEITHT ALUMINUM TRIALKYL UNDER ELEVATED TEMPERATUREE AND PRESSURES IN THE PRESENCE OF AN INERT DILUENT TO FORM A HIGHER MOLECULAR WEIGHT ALUMINUM TRIALKYL, SEPARATING THE HIGHER MOLECULAR WEIGHT ALUMINUM TRIALKYL FROM SAID INERT DILUENT, REACTING IN A SECOND ZONE SAID HIGHER MOLECULAR WEIGHT ALUMINUM TRIALKYL WITH ETHLENE UNDER ELEVATED TEMPERATURES IN THE PRESENCE OF A DISPLACEMENT CATALYST TO GENERATE OLEFINS CORRESPONDING TO THE ALKYL RADICALS OF THE HIGHER MOLECULAR WEIGHT ALUMINUM TRIALKYL AND ALUMINUM TRIETHYL, PASSING PRODUCT OBTAINED FROM SAID SECOND ZONE TO SAID FIRST ZONE, EMPLOYING SAID GENERATED OLEFINS OF SAID PRODUCT AS DILUENT IN SAID FIRST ZONE, AND REACTING ALUMINUM TRIETHYL FROM SAID SECOND ZONE WITH ETHENE IN SAID FIRST ZONE IN THE PRESENCE OF SAID GENERATED OLEFINS TO FORM HIGHER MOLECULAR WEIGHT ALUMINUM TRIALKYL, AND SEPARATING THE GENERATED OLEFINS AS PRODUCT.
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) | 1962-09-28 | 1963-03-30 | 1963-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-28 | 1967-03-30 | 1967-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-28 | 1971-03-30 | 1971-09-29 | $7700.00 | Window Closed / Lapsed |