US3855340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of dismutation of olefins, catalyst employed and products obtained
Assignee: ENTERPRISE DE RECHERCHES ET D ACTIVITES PETROLIERES ELF FR
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Filing: 1973-01-23
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Granted: 1974-12-17
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Expires: 1993-01-23
Abstract
Abstract The method consists in carrying out the dismutation reaction by catalysis in homogeneous phase, the catalyst employed being an alcoholate of molybdenum or tungsten in solution in a hydrocarbon to which is added an organometallic reducing agent and especially a halogenated aluminium organometallic compound.
Inventors
- 👤 H Knoche
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:41
CPC Classifications
B; B01; B01J; B01J35/00; B01J35/20; B01J35/27; B01J31/00; B01J31/02; B01J31/0201; B01J31/0211; B01J31/0214; B01J31/12; B01J31/14; B01J31/143; B01J2231/00; B01J2231/50; B01J2231/54; B01J2231/543
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
32 words
A METHOD OF DISMUTATION OF OLEFINS, THE REACTION BEING CARRIED OUT IN HOMOGENEOUS PHASE BY CONTACT OF SAID OLEFIN WITH A CATALYST CONSISTING OF A MIXTURE OF AN ALCOLATE HAVING THE FORMULA:
Claim 2
Independent Claim
32 words
A METHOD OF DISMUTATION OF OLEFINS, THE REACTION BEING CARRIED OUT IN HOMOGENEOUS PHASE BY CONTACT OF SAID OLEFIN WITH A CATALYST CONSISTING OF A MIXTURE OF AN ALCOLATE HAVING THE FORMULA:
Claim 3
Dependent Claim
40 words
A method according to claim 1, wherein said method including admixing tungsten or molybdenum phenolate with at least one olefinic compound to be treated in solution in a hydrocarbon and then adding an alkylaluminium sesquichloride or dichloride to the mixture.
Claim 4
Dependent Claim
22 words
A method according to claim 1, wherein the reaction being carried out at a temperature within the range of 0* to 50*C.
Claim 5
Dependent Claim
13 words
A method according to claim 3, the solvent hydrocarbon being an aliphatic hydrocarbon.
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) | 1977-12-16 | 1978-06-17 | 1978-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-16 | 1982-06-17 | 1982-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-16 | 1986-06-17 | 1986-12-17 | $7700.00 | Window Closed / Lapsed |