US3761537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dismutation of olefins
Assignee: Universal Oil Products Co
•
Filing: 1971-11-18
•
Granted: 1973-09-25
•
Expires: 1991-11-18
Abstract
Abstract Olefinic hydrocarbons are subjected to a dismutation process by treatment with a catalyst comprising a metal oxyhalide in which the metal is present in an intermediate valence state to form dissimilar olefins which contain one or more carbon atoms less and one or more carbon atoms more than the original olefinic hydrocarbon.
Inventors
- 👤 E Homeier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:28
CPC Classifications
C; C07; C07C; C07C6/00; C07C6/02; C07C6/04
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
20 words
The process as set forth in claim 1 further characterized in that said process is effected in an oxygen-free atmosphere.
Claim 2
Dependent Claim
22 words
The process as set forth in claim 1 further characterized in that said process is effected in an inert organic solvent medium.
Claim 3
Dependent Claim
40 words
The process as set forth in claim 1 in which said conditions include a temperature in the range of from about ambient to about 75* C. and a pressure in the range of from about atmospheric to about 100 atmospheres.
Claim 4
Dependent Claim
15 words
The process as set forth in claim 1 in which said catalyst is tungstenyl dichloride.
Claim 5
Dependent Claim
15 words
The process as set forth in claim 1 in which said catalyst is molybdenyl dichloride.
Claim 6
Dependent Claim
19 words
The process as set forth in claim 3 in which said inert organic solvent is benzene or carbon tetrachloride.
Claim 7
Dependent Claim
28 words
The process as set forth in claim 1 in which said olefinic hydrocarbon feed stock is pentene and said dissimilar olefins are a mixture of butenes and hexenes.
Claim 8
Dependent Claim
25 words
The process as set forth in claim 1 in which said olefinic hydrocarbon feed stock is ethylene and hexene-3 and said dissimilar olefin is butene-1.
Claim 9
Dependent Claim
28 words
The process as set forth in claim 1 in which said olefinic hydrocarbon feed stock is butene, and said dissimilar olefins are a mixture of propene and pentene.
Claim 10
Dependent Claim
28 words
The process as set forth in claim 1 in which said olefinic hydrocarbon feed stock is butene-1 and said dissimilar olefins are a mixture of hexene-3 and ethylene.
Claim 11
Dependent Claim
28 words
The process as set forth in claim 1 in which said olefinic hydrocarbon feed stock is nonene and said dissimilar olefins are a mixture of octenes and decenes.
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) | 1976-09-24 | 1977-03-26 | 1977-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-24 | 1981-03-26 | 1981-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-24 | 1985-03-26 | 1985-09-25 | $7700.00 | Window Closed / Lapsed |