US3118947A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Epoxide conversion process
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1960-06-22
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Granted: 1964-01-21
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Expires: 1980-06-22
Abstract
No abstract record available.
Inventors
- 👤 Emanuel M Amir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:11
CPC Classifications
C; C07; C07C; C07C47/00; C07C47/02; C07C1/00; C07C1/20; C07C1/247; C07C45/00; C07C45/56; C07C45/57; C07C45/58; C07C2521/00; C07C2521/06; C07C2521/08; C07C2531/00; C07C2531/02; C07C2531/04; Y; Y10; Y10S; Y10S585/00; Y10S585/949; Y10S585/953
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A METHOD FOR CONVERTING A TRIALKYL-SUBSTITUTED ETHYLENE OXIDE FEED STOCK AND FOR SIMULTANEOUSLY CHROMATOGRAPHICALLY SEPARATING THE CONVERSION PRODUCTS FROM EACH OTHER WHICH COMPRISES THE STEPS OF PERIODICALLY INTRODUCING A TRIALKYL-SUBSTITUTED ETHYLENE OXIDE FEED STOCK INTO AN ELONGATED CONVERSION ZONE HAVING A LENGTH-TO-DIAMETER RATIO OF AT LEAST ABOT 15 TO 1 AT A TEMPERATURE WITHIN THE RANGE OF ABOUT 70* TO 600*F., SAID CONVERSION ZONE HAVING AN INERT GAS PASSED THERETHROUGH AND CONTAINING THEREIN A FINELY DIVIDED CALCINED DIATOMACEOUS EARTH WHICH ACTS AS THE CONVERSION CATALYST AND A SUPPORT HAVING THEREON A NON-REACTIVE, LIQUID SUBSTRATE, TO THEREBY CONVERT SAID FEED STOCK AND TO SEPARATE SAID CONVERSION PRODUCTS FROM EACH OTHER ON PASSAGE THROUGH SAID ELONGATED CONVERSION ZONE, AND SEPARATELY RECOVERING SEPARATED FRACTIONS OF SAID CONVERSION PRODUCTS WHICH COMPRISE THE CORRESPONDING DIOLEFINS, TERMINAL ALDEHYDES AND KETONES FROM THE DISCHARGE END OF SAID CONVERSION ZONE.
Claim 2
Independent Claim
142 words
A METHOD FOR CONVERTING A TRIALKYL-SUBSTITUTED ETHYLENE OXIDE FEED STOCK AND FOR SIMULTANEOUSLY CHROMATOGRAPHICALLY SEPARATING THE CONVERSION PRODUCTS FROM EACH OTHER WHICH COMPRISES THE STEPS OF PERIODICALLY INTRODUCING A TRIALKYL-SUBSTITUTED ETHYLENE OXIDE FEED STOCK INTO AN ELONGATED CONVERSION ZONE HAVING A LENGTH-TO-DIAMETER RATIO OF AT LEAST ABOT 15 TO 1 AT A TEMPERATURE WITHIN THE RANGE OF ABOUT 70* TO 600*F., SAID CONVERSION ZONE HAVING AN INERT GAS PASSED THERETHROUGH AND CONTAINING THEREIN A FINELY DIVIDED CALCINED DIATOMACEOUS EARTH WHICH ACTS AS THE CONVERSION CATALYST AND A SUPPORT HAVING THEREON A NON-REACTIVE, LIQUID SUBSTRATE, TO THEREBY CONVERT SAID FEED STOCK AND TO SEPARATE SAID CONVERSION PRODUCTS FROM EACH OTHER ON PASSAGE THROUGH SAID ELONGATED CONVERSION ZONE, AND SEPARATELY RECOVERING SEPARATED FRACTIONS OF SAID CONVERSION PRODUCTS WHICH COMPRISE THE CORRESPONDING DIOLEFINS, TERMINAL ALDEHYDES AND KETONES FROM THE DISCHARGE END OF SAID CONVERSION ZONE.
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) | 1967-01-20 | 1967-07-22 | 1968-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-20 | 1971-07-22 | 1972-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-20 | 1975-07-22 | 1976-01-21 | $7700.00 | Window Closed / Lapsed |