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Patent US3800000A successfully refreshed from Google Patents.
US3800000A
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Process for recovering a nickel(0) oligomerization catalyst in the form of a nickel(ii) dimerization catalyst
Assignee: Phillips Petroleum Co
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Filing: 1972-01-03
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Granted: 1974-03-26
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Expires: 1992-01-03
Abstract
Abstract An integrated process is provided wherein a nickel(0) complexcatalyzed oligomerization and a nickel(II) complex-catalyzed dimerization are coordinated such that the nickel(0) oligomerization catalyst is recovered after use in the nickel(II) complex form which is then utilized as a dimerization catalyst.
Inventors
- 👤 D Fahey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:01
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/16; B01J31/22; B01J31/2282; B01J31/2291; B01J31/02; B01J31/12; B01J31/14; B01J31/143; B01J31/2295; B01J31/24; B01J31/2404; B01J37/00; B01J37/22; C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/38; C07C2/40; C07C2/403; C07C2/406; C07C2/42; C07C2/48; C07C2/50; C07C2/52; B01J2231/00; B01J2231/20; B01J2231/30; B01J2231/32; B01J2231/323; B01J2231/324; B01J2231/326; B01J2531/00; B01J2531/80; B01J2531/84; B01J2531/847; C07C2531/00; C07C2531/02; C07C2531/12; C07C2531/14; C07C2531/16; C07C2531/24; Y; Y02; Y02P; Y02P20/00; Y02P20/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
23 words
The process according to claim 1 wherein oligomers contained in the resulting admixture of step (a) are isolated after the sequential step (c).
Claim 2
Dependent Claim
24 words
The process according to claim 1 wherein the oligomers contained in the resulting admixture of step (a) are isolated after the sequential step (d).
Claim 3
Dependent Claim
73 words
The process according to claim 1 wherein reactants of step (a) are contacted at a temperature of from -20* C. to 150* C., under a pressure of from 1 to 100 psig for a period of up to 48 hours, and the dimerization process of step (d) is at a temperature of from -25 to 125* C. under a pressure of 1 to 150 psig for a period of up to 24 hours.
Claim 4
Dependent Claim
33 words
The process according to claim 1 wherein both steps (a) and (b) occur in the presence of a solvent reaction media selected from the group consisting of aromatic, aliphatic, cycloaliphatic and chlorinated hydrocarbons.
References Cited (Backward Citations)
US3395165A
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US3420904A
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US3390195A
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US3485881A
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US3674825A
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US3689588A
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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) | 1977-03-25 | 1977-09-24 | 1978-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-25 | 1981-09-24 | 1982-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-25 | 1985-09-24 | 1986-03-26 | $7700.00 | Window Closed / Lapsed |