Patent US2596744A successfully refreshed from Google Patents.
Patent US3261879A successfully refreshed from Google Patents.
US3261879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Olefin disproportionation
Assignee: Phillips Petroleum Co
•
Filing: 1963-09-27
•
Granted: 1966-07-19
•
Expires: 1983-09-27
Abstract
No abstract record available.
Inventors
- 👤 Robert L Banks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:49
CPC Classifications
C; C07; C07C; C07C6/00; C07C6/02; C07C6/04; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A DISPROPORTIONATION PROCESS WHICH COMPRISES CONTACTING AN ACYCLIC MONOOLEFIN FEED HAVING 3 TO 20 CARBON AOMS PER MOLECULE WITH A CATALYST ACTIVATED IN AN ATMOSPHERE COMPATIBLE WITH SAID CATALYST TO PERMIT ACTIVATION FOR DISPROPORIONATION, SAID CATALYST CONSISTING ESSENTIALLY OF ALUMINA AND BETWEEN 0.5 AND 30 WEIGHT PERCENT OF A LEAST ONE OXIDE SELECTED FROM THE GROUP CONSISTING OF MOLYBENUM OXIDE AND TUNGSTEN OXIDE UNDER CONDITIONS, INCLUDING CONDITIONS OF TEMPERATURE, PRESSURE AND CONTACT TIME, SUITABLE FOR OBTAINING A DISPROPORTIONED PRODUCT WITHIN A TEMPERATURE RANGE OF 150 TO 500*F. AND A PRESSURE RANGE OF 0 TO 1500 P.S.I.G., THE PRODUCE A DISPROPORTIONATED PRODUCT COMPRISING HIGHER AND LOWER MOLECULAR WEIGHT ACYCLIC MOOLEGINS SIMILAR TO SAID FEED, AND RECOVERING SAID DISPROPORTIONATED PRODUCT.
Claim 2
Dependent Claim
118 words
A DISPROPORTIONATION PROCESS WHICH COMPRISES CONTACTING AN ACYCLIC MONOOLEFIN FEED HAVING 3 TO 20 CARBON AOMS PER MOLECULE WITH A CATALYST ACTIVATED IN AN ATMOSPHERE COMPATIBLE WITH SAID CATALYST TO PERMIT ACTIVATION FOR DISPROPORIONATION, SAID CATALYST CONSISTING ESSENTIALLY OF ALUMINA AND BETWEEN 0.5 AND 30 WEIGHT PERCENT OF A LEAST ONE OXIDE SELECTED FROM THE GROUP CONSISTING OF MOLYBENUM OXIDE AND TUNGSTEN OXIDE UNDER CONDITIONS, INCLUDING CONDITIONS OF TEMPERATURE, PRESSURE AND CONTACT TIME, SUITABLE FOR OBTAINING A DISPROPORTIONED PRODUCT WITHIN A TEMPERATURE RANGE OF 150 TO 500*F. AND A PRESSURE RANGE OF 0 TO 1500 P.S.I.G., THE PRODUCE A DISPROPORTIONATED PRODUCT COMPRISING HIGHER AND LOWER MOLECULAR WEIGHT ACYCLIC MOOLEGINS SIMILAR TO SAID FEED, AND RECOVERING SAID DISPROPORTIONATED PRODUCT.
References Cited (Backward Citations)
US2692259A
Cited
US2825721A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-18 | 1970-01-17 | 1970-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-18 | 1974-01-17 | 1974-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-18 | 1978-01-17 | 1978-07-19 | $7700.00 | Window Closed / Lapsed |