Patent US4777314A successfully refreshed from Google Patents.
US4777314A
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New nickel composition soluble in hydrocarbons and use thereof
Assignee: IFP Energies nouvelles
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Filing: 1987-11-12
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Granted: 1988-10-11
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Expires: 2007-11-12
Abstract
Abstract New nickel composition having substantial solubility in hydrocarbons and prepared by reacting at least one inorganic divalent nickel compound, at least one halogenoacetic acid and at least one ester of the formula R 1 COO R 2 wherein R 1 is hydrogen or hydrocarbyl and R 2 is hydrocarbyl. The resultant composition can be used in admixture with a hydrocarbylaluminum halide as catalyst for olefin dimerization.
Inventors
- 👤 Gerard Provin
- 👤 Alain Forestiere
- 👤 Dominique Commereuc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:11
CPC Classifications
C; C07; C07C; C07C53/00; C07C53/15; C07C53/16
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
59 words
A catalyst composition comprising: (a) a composition obtained by a process comprising reacting at least one divalent inorganic nickel compound; at least one halogenoacetic acid; and at least one ester of the formula R 1 COOR 2 , wherein R 1 is hydrogen or C 1-4 alkyl, and R 2 is a hydrocarbyl radical, and (b) a hydrocarbylaluminum halide.
Claim 2
Dependent Claim
59 words
A catalyst composition comprising: (a) a composition obtained by a process comprising reacting at least one divalent inorganic nickel compound; at least one halogenoacetic acid; and at least one ester of the formula R 1 COOR 2 , wherein R 1 is hydrogen or C 1-4 alkyl, and R 2 is a hydrocarbyl radical, and (b) a hydrocarbylaluminum halide.
Claim 3
Dependent Claim
43 words
A catalyst composition according to claim 1, whose manufacture comprises the use of halogenoacetic acid in a proportion of 0.1-2 moles per nickel atom of the inorganic compound and ester in a proportion of 0.1-10 liters per nickel atom of the inorganic compound.
Claim 4
Dependent Claim
36 words
A catalyst composition according to claim 1, whose manufacture comprises the use of halogenoacetic acid in a proportion of 0.5-1.5 mole an ester in a proportion of 0.2-2 liters per nickel atom of the inorganic compound.
Claim 5
Dependent Claim
22 words
A catalyst composition according to claim 1, whose manufacture comprises, as the nickel inorganic compound, carbonate, bicarbonate, basic carbonate, oxide or hydroxide.
Claim 6
Dependent Claim
19 words
A catalyst composition according to claim 1, whose manufacture comprises, as the nickel inorganic compound, a nickel basic carbonate.
Claim 7
Dependent Claim
15 words
A catalyst composition according to claim 1, whose manufacture comprises, as halogenoacetic acid, trifluoroacetic acid.
Claim 8
Dependent Claim
33 words
A catalyst composition according to claim 1, whose manufacture further comprises the reaction of a non-halogenated carboxylic acid having at least 3 carbon atoms, in a proportion of 0.1-0.9 mole per nickel atom.
Claim 9
Dependent Claim
14 words
A catalyst composition according to claim 1, wherein R 2 is C 1-5 -alkyl.
Claim 10
Dependent Claim
16 words
A catalyst composition according to claim 1, wherein R 1 is hydrogen or C 1-3 -alkyl.
Claim 11
Dependent Claim
26 words
A catalyst composition according to claim 8, wherein the ester is methyl acetate, methyl formate, n-butyl acetate, isobutyl acetate, methyl propionate, isopropyl formate or ethyl butyrate.
Claim 12
Dependent Claim
89 words
In a process for dimerizing olefins in liquid phase, in the presence of catalyst, and at the end of the dimerization step extracting inorganic compounds with sodium hydroxide, the improvement wherein said catalyst comprises (a) a composition obtained by a process comprising reacting at least one divalent inorganic nickel compound; at least one halogenoacetic acid; and at least one ester of the formula R 1 COOR 2 , wherein R 1 is hydrogen or C 1-4 alkyl, and R 2 is a hydrocarbyl radical, and (b) a hydrocarbylaluminum halide.
Claim 13
Dependent Claim
89 words
In a process for dimerizing olefins in liquid phase, in the presence of catalyst, and at the end of the dimerization step extracting inorganic compounds with sodium hydroxide, the improvement wherein said catalyst comprises (a) a composition obtained by a process comprising reacting at least one divalent inorganic nickel compound; at least one halogenoacetic acid; and at least one ester of the formula R 1 COOR 2 , wherein R 1 is hydrogen or C 1-4 alkyl, and R 2 is a hydrocarbyl radical, and (b) a hydrocarbylaluminum halide.
Claim 14
Dependent Claim
25 words
A catalyst composition according to claim 1, wherein the halogenoacetic acid is monochloroacetic acid, monofluoroacetic acid, dichloroacetic acid, trichloroacetic acid, difluoroacetic acid or trifluoroacetic acid.
Claim 15
Dependent Claim
42 words
In a process for dimerizing olefins in liquid phase, in the presence of a catalyst, and at the end of the dimerization step conventionally extracting inorganic compounds with sodium hydroxides, the improvement wherein said catalyst is a composition according to claim 10.
References Cited (Backward Citations)
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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) | 1991-10-11 | 1992-04-11 | 1992-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-10-11 | 1996-04-11 | 1996-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-10-11 | 2000-04-11 | 2000-10-11 | $7700.00 | Window Closed / Lapsed |