US3679772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemical process
Assignee: Atlantic Richfield Co
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Filing: 1969-08-04
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Granted: 1972-07-25
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Expires: 1989-08-04
Abstract
Abstract Reaction of a mono-olefin and a conjugated olefin in contact with a catalyst comprising a complex of nickel, a Group V-A electron donor ligand and a non-protonic Lewis acid and reducing agent on a solid, acidic silica-based support. Illustrative is the preparation of 1,4-dienes from the reaction of 1,3-butadiene and ethylene in contact with nickel acetylacetonate, triphenylphosphine, and ethylaluminumsesquichloride supported on silica-alumina pellets.
Inventors
- 👤 Jin S Yoo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:41
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2521/00; C07C2521/02; C07C2521/04; C07C2521/06; C07C2521/08; C07C2521/12; C07C2531/00; C07C2531/02; C07C2531/12; C07C2531/14; C07C2531/16; C07C2531/22; C07C2531/24
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
44 words
The process of claim 1 wherein said nickel is about 0.1 to 15 weight percent, based on said support, the mole ratio of (b) to (a) is about 1 to 10:1, and the mole ratio of (c) to (a) is about 5 to 20:1.
Claim 2
Dependent Claim
29 words
The process of claim 2 wherein said electron donor ligand (b) is a phosphine of the formula R3P wherein R is hydrocarbon of 1 to about 20 carbon atoms.
Claim 3
Dependent Claim
10 words
The process of claim 3 wherein (a) is nickel acetylacetonate.
Claim 4
Dependent Claim
10 words
The process of claim 4 wherein said phosphine is tri-n-butylphosphine.
Claim 5
Dependent Claim
10 words
The process of claim 4 wherein said phosphine is triphenylphosphine.
Claim 6
Dependent Claim
18 words
The process of claim 3 wherein said Lewis acid and said reducing agent is an aluminum alkyl halide.
Claim 7
Dependent Claim
16 words
The procsss of claim 7 wherein said Lewis acid an said reducing agent is ethylaluminum sesquichloride.
Claim 8
Dependent Claim
12 words
The process of claim 8 wherein said phosphine is tri-n-butylphosphine or triphenylphosphine.
Claim 9
Dependent Claim
10 words
The process of claim 1 wherein the support is silica-alumina.
Claim 10
Dependent Claim
41 words
The process of claim 10 wherein the support is comprised of about 45 to 95 weight percent amorphous silica-alumina, and about 5 to 55 weight percent alumina, the total alumina content of said support being about 20 to 70 weight percent.
Claim 11
Dependent Claim
23 words
The process of claim 11 wherein said alumina is selected from the group consisting of amorphous hydrous alumina, alumina monohydrate and mixtures thereof.
Claim 12
Dependent Claim
41 words
The process of claim 2 wherein the support is comprised of about 45 to 95 weight percent amorphous silica-alumina, and about 5 to 55 weight percent alumina, the total alumina content of said support being about 20 to 70 weight percent.
Claim 13
Dependent Claim
43 words
The process of claim 3 wherein the support is comprised of about 45 to 95 weight percent alumina, the total alumina, and about 5 to 55 weight percent alumina, the total alumina content of said support being about 20 to 70 weight percent.
Claim 14
Dependent Claim
41 words
The process of claim 7 wherein the support is comprised of about 45 to 95 weight percenT amorphous silica-alumina, and about 5 to 55 weight percent alumina, the total alumina content of said support being about 20 to 70 weight percent.
Claim 15
Dependent Claim
41 words
The process of claim 8 wherein the support is comprised of about 45 to 95 weight percent amorphous silica-alumina, and about 5 to 55 weight percent alumina, the total alumina content of said support being about 20 to 70 weight percent.
Claim 16
Dependent Claim
41 words
The process of claim 9 wherein the support is comprised of about 45 to 95 weight percent amorphous silica-alumina, and about 5 to 55 weight percent alumina, the total alumina content of said support being about 20 to 70 weight percent.
Claim 17
Dependent Claim
23 words
The process of claim 13 wherein said alumina is selected from the group consisting of amorphous hydrous alumina, alumina monohydrate and mixtures thereof.
Claim 18
Dependent Claim
23 words
The process of claim 15 wherein said alumina is selected from the group consisting of amorphous hydrous alumina, alumina monohydrate and mixtures thereof.
Claim 19
Dependent Claim
23 words
The process of claim 16 wherein said alumina is selected from the group consisting of amorphous hydrous alumina, alumina monohydrate and mixtures thereof.
Claim 20
Dependent Claim
23 words
The process of claim 17 wherein said alumina is selected from the group consisting of amorphous hydrous alumina, alumina monohydrate and mixtures thereof.
References Cited (Backward Citations)
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US3507930A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-25 | 1976-01-24 | 1976-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-25 | 1980-01-24 | 1980-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-25 | 1984-01-24 | 1984-07-25 | $7700.00 | Window Closed / Lapsed |