Patent US4087472A successfully refreshed from Google Patents.
US4087472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Isomerization process
Assignee: Phillips Petroleum Co
•
Filing: 1976-08-16
•
Granted: 1978-05-02
•
Expires: 1996-08-16
Abstract
Abstract An olefinic hydrocarbon is isomerized utilizing a catalyst system consisting essentially of a mixture of a nickel complex of the formula (R 3 P) 2 NiX 2 and an alkali metal borohydride.
Inventors
- 👤 William B. Hughes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:33
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/22; C07C5/23; C07C5/25; C07C5/2506; C07C5/2562; C07C5/2593; C07C29/00; C07C29/56; C07C45/00; C07C45/51; C07C45/511; C07C45/512; C07B; C07B2200/00; C07B2200/09
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
116 words
A process for isomerizing an isomerizable olefinic alcohol having from 4 to 20 carbon atoms per molecule and at least one ethylenic bond which comprises contacting said olefinic alcohol in the liquid phase under isomerization conditions with a catalyst consisting essentially of a mixture of a nickel complex represented by the formula (R.sub.3 P).sub.2 NiX.sub.2 wherein X is a halogen selected from the group consisting of chlorine, bromine and iodine, and R is a hydrocarbon radical having from 1 to 10 carbon atoms, and an alkali metal borohydride represented by the formula MBH.sub.3 Z wherein M is an alkali metal selected from the group consisting of lithium, sodium and potassium, and Z is --H or --CN.
Claim 2
Dependent Claim
116 words
A process for isomerizing an isomerizable olefinic alcohol having from 4 to 20 carbon atoms per molecule and at least one ethylenic bond which comprises contacting said olefinic alcohol in the liquid phase under isomerization conditions with a catalyst consisting essentially of a mixture of a nickel complex represented by the formula (R.sub.3 P).sub.2 NiX.sub.2 wherein X is a halogen selected from the group consisting of chlorine, bromine and iodine, and R is a hydrocarbon radical having from 1 to 10 carbon atoms, and an alkali metal borohydride represented by the formula MBH.sub.3 Z wherein M is an alkali metal selected from the group consisting of lithium, sodium and potassium, and Z is --H or --CN.
Claim 3
Dependent Claim
11 words
The process of claim 1 wherein said olefinic alcohol is 3-buten-1-ol.
Claim 4
Dependent Claim
25 words
The process of claim 1 wherein the molar ratio of said borohydride to said nickel complex is in the approximate range of 0.5:1 to 5:1.
Claim 5
Dependent Claim
30 words
The process of claim 1 wherein said catalyst system is employed in an amount ranging from 1 to 1000 moles of said olefinic alcohol per mole of said nickel complex.
Claim 6
Dependent Claim
32 words
The process of claim 1 wherein said isomerization is carried out by contacting said olefinic alcohol with said catalyst system at a temperature in the approximate range of 0° to 150° C.
Claim 7
Dependent Claim
32 words
The process of claim 1 wherein said isomerization is carried out at a pressure sufficient to maintain said olefinic alcohol reactant and the resulting product in the liquid phase at reaction temperature.
Claim 8
Dependent Claim
16 words
The process of claim 1 wherein said isomerization is carried out in an inert reaction diluent.
Claim 9
Dependent Claim
17 words
The process of claim 1 wherein said nickel complex is bis(triethylphosphine)dichloronickel and said borohydride is sodium cyanoborohyddride.
Claim 10
Dependent Claim
17 words
The process of claim 1 wherein said nickle complex is bis(tribenzylphosphine)dichloronickel and said borohydride is sodium cyanoborohydride.
References Cited (Backward Citations)
US3148224A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-01 | 1981-10-31 | 1982-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-01 | 1985-10-31 | 1986-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-01 | 1989-10-31 | 1990-05-02 | $7700.00 | Window Closed / Lapsed |