US4362650A
Expired / Lapsed
US
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Catalyst and process for olefin oligomerization
Assignee: IFP Energies nouvelles
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Filing: 1981-05-08
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Granted: 1982-12-07
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Expires: 2001-05-08
Abstract
Abstract An improved catalyst composition is obtained by contacting at least one bivalent nickel compound with at least one hydrocarbyl aluminum halide, at least one Bronsted organic acid and at least one anhydride of a carboxylic acid. The composition can be used as a catalyst for olefin oligomerization.
Inventors
- 👤 Yves Chauvin
- 👤 Dominique Commereuc
- 👤 Gerard Leger
- 👤 Jean Gaillard
- 👤 Nhu H. Phung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:19
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/16; B01J31/22; B01J31/2204; B01J31/2208; B01J31/2226; B01J31/223; B01J31/2234; B01J31/02; B01J31/0231; B01J31/04; B01J31/12; B01J31/14; B01J31/143; C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/26; C07C2/30; C07C2/32; B01J2231/00; B01J2231/20; B01J2531/00; B01J2531/80; B01J2531/84; B01J2531/847; B01J31/0215; B01J31/0225; C07C2531/00; C07C2531/02; C07C2531/04; C07C2531/12; C07C2531/14; C07C2531/16; C07C2531/22
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
93 words
In a catalyst composition obtained by contacting, in any order, at least one bivalent nickel compound with at least one hydrocarbylaluminum halide and at least one Bronsted organic acid whose pKa at 20° C. is at most equal to 3, the improvement wherein said hydrocarbylaluminum halide has 1.5-2 halogen atoms per atom of aluminum; and wherein said contacting is effected in the further presence of at least one carboxylic acid anhydride having the formula (R 3 CO) 2 O, wherein each R 3 is independently an unsubstituted or halogen-substituted C 1-20 hydrocarbyl group.
Claim 2
Dependent Claim
93 words
In a catalyst composition obtained by contacting, in any order, at least one bivalent nickel compound with at least one hydrocarbylaluminum halide and at least one Bronsted organic acid whose pKa at 20° C. is at most equal to 3, the improvement wherein said hydrocarbylaluminum halide has 1.5-2 halogen atoms per atom of aluminum; and wherein said contacting is effected in the further presence of at least one carboxylic acid anhydride having the formula (R 3 CO) 2 O, wherein each R 3 is independently an unsubstituted or halogen-substituted C 1-20 hydrocarbyl group.
Claim 3
Dependent Claim
15 words
A catalyst composition according to claim 1, wherein the Bronsted acid is a halogenocarboxylic acid.
Claim 4
Dependent Claim
19 words
A catalyst composition according to claim 1, wherein the Bronsted acid is trifluoroacetic acid, trichloroacetic acid or tribromoacetic acid.
Claim 5
Dependent Claim
22 words
A catalyst composition according to claim 1 wherein the anhydride of the carboxylic acid is trifluoroacetic anhydride, trichloroacetic anhydride or tribromoacetic anhydride.
Claim 6
Dependent Claim
24 words
A catalyst according to claim 1 wherein the nickel compound has a solubility higher than 1 gram per liter in n-heptane at 20° C.
Claim 7
Dependent Claim
38 words
A catalyst composition according to claim 1 wherein the nickel compound is a nickel acetylacetonate or a nickel carboxylate of the formula (RCOO) 2 Ni, wherein each R is a hydrocarbyl radical having 5 to 20 carbon atoms.
Claim 8
Dependent Claim
48 words
A catalyst composition according to claim 1 wherein the hydrocarbylaluminum halide has the formula AlR x X y , wherein R is hydrocarbyl of 1-12 carbon atoms, X is halogen, x has a value from 1 to 1.5 and y a value from 1.5 to 2 with x+y=3.
Claim 9
Dependent Claim
60 words
A catalyst composition according to claim 1, wherein the molar ratio of the hydrocarbylaluminum halide to the nickel compound is from 2:1 to 15:1, the molar ratio of the Bronsted acid to the aluminum compound is from 0.01:1 to 0.5:1 and the molar ratio of the anhydride of the carboxylic acid to the nickel compound is from 0.01:1 to 0.5:1.
Claim 10
Dependent Claim
17 words
A catalyst composition according to claim 7, wherein said hydrocarbylaluminum halide is ethylaluminum sesquichloride, dichloroethylaluminum or dichloroisobutylaluminum.
Claim 11
Dependent Claim
117 words
A catalyst precursor for reaction with a hydrocarbylaluminum halide having 1.5-2 halogen atoms per atom of aluminum to prepare a catalyst composition according to claim 1, said precursor consisting essentially of at least one bivalent nickel compound; at least one Bronsted organic acid whose pKa at 20° C. is at most equal to 3; and at least one carboxylic acid anhydride having the formula (R 3 CO) 2 O, wherein each R 3 is independently an unsubstituted or halogen-substituted C 1-20 hydrocarbyl group; and wherein the molar ratio of the Bronsted acid to the nickel compound is from 0.25:1 to 5:1, and the molar ratio of the anhydride to the nickel compound is from 0.01:1 to 0.5:1.
Claim 12
Dependent Claim
39 words
A catalyst precursor according to claim 10, wherein said bivalent nickel compound is a nickel acetylacetonate or a nickel carboxylate of the formula (RCOO) 2 Ni, wherein each R is a hydrocarbyl radical having 5 to 20 carbon atoms.
Claim 13
Dependent Claim
19 words
A catalyst precursor according to claim 10, wherein said Bronsted acid is trifluoroacetic acid, trichloroacetic acid or tribromoacetic acid.
Claim 14
Dependent Claim
18 words
A catalyst precursor according to claim 10, wherein said anhydride is trifluoroacetic anhydride, trichloroacetic anhydride or tribromoacetic anhydride.
References Cited (Backward Citations)
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1985-12-06 | 1986-06-07 | 1986-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-12-06 | 1990-06-07 | 1990-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-12-06 | 1994-06-07 | 1994-12-07 | $7700.00 | Window Closed / Lapsed |