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US 2003/0171511 A1Published application
Organometal compound catalyst
AssigneePhillips Petroleum Company
InventorsMax P. McDaniel, Kathy S. Collins, Gil R. Hawley, Michael D. Jensen, Elizabeth A. Benham, Anthony P. Eaton, Joel L. Martin, Christopher E. Wittner
Life of this patent
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Abstract
This invention provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer. This invention also provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer, wherein said catalyst composition comprises a post-contacted organometal compound, a post-contacted organoaluminum compound, and a post-contacted treated solid oxide compound.
Claims22
A process to produce a catalyst composition, said process comprising contacting an organometal compound, an organoaluminum compound, and a treated solid oxide compound to produce said catalyst composition,
- wherein said organometal compound has the following general formula:
- (X1)(X2)(X3)(X4)M1
- wherein M1 is selected from the group consisting of titanium, zirconium, and hafnium;
- wherein (X1) is independently selected from the group consisting of cyclopentadienyls, indenyls, fluorenyls, substituted cyclopentadienyls, substituted indenyls, and substituted fluorenyls;
- wherein substituents on said substituted cyclopentadienyls, substituted indenyls, and substituted fluorenyls of (X1) are selected from the group consisting of aliphatic groups, cyclic groups, combinations of aliphatic and cyclic groups, silyl groups, alkyl halide groups, halides, organometals groups, phosphorus groups, nitrogen groups, silicon, phosphorus, boron, germanium, and hydrogen;
- wherein at least one substituent on (X1) can be a bridging group which connects (X1) and (X2);
- wherein (X3) and (X4) are independently selected from the group consisting of halides, aliphatic groups, substituted aliphatic groups, cyclic groups, substituted cyclic groups, combinations of aliphatic groups and cyclic groups, combinations of substituted aliphatic groups and cyclic groups, combinations of aliphatic groups and substituted cyclic groups, combinations of substituted aliphatic groups and substituted cyclic groups, amido groups, substituted amido groups, phosphido groups, substituted phosphido groups, alkyloxide groups, substituted alkyloxide groups, aryloxide groups, substituted aryloxide groups, organometals groups, and substituted organometals groups;
- wherein (X2) is selected from the group consisting of cyclopentadienyls, indenyls, fluorenyls, substituted cyclopentadienyls, substituted indenyls, substituted fluorenyls, halides, aliphatic groups, substituted aliphatic groups, cyclic groups, substituted cyclic groups, combinations of aliphatic groups and cyclic groups, combinations of substituted aliphatic groups and cyclic groups, combinations of aliphatic groups and substituted cyclic groups, combinations of substituted aliphatic groups and substituted cyclic groups, amido groups, substituted amido groups, phosphido groups, substituted phosphido groups, alkyloxide groups, substituted allyloxide groups, aryloxide groups, substituted aryloxide groups, organometals groups, and substituted organometals groups;
- wherein substituents on (X2) are selected from the group consisting of aliphatic groups, cyclic groups, combinations of aliphatic groups and cyclic groups, silyl groups, alkyl halide groups, halides, organometals groups, phosphorus groups, nitrogen groups, silicon, phosphorus, boron, germanium, and hydrogen;
- wherein at least one substituent on (X2) can be a bridging group which connects (X1) and (X2);
- wherein said organoaluminum compound has the following general formula:
- Al(X5)n(X6)3−n
- wherein (X5) is a hydrocarbyl having from 1 to about 20 carbon atoms;
- wherein (X6) is a halide, hydride, or alkoxide;
- and
- wherein “n” is a number from 1 to 3 inclusive;
- wherein said treated solid oxide compound comprises at least one halogen, zirconium, and a solid oxide compound;
- wherein said halogen is at least one selected from the group consisting of chlorine, bromine, and fluorine;
- wherein the solid oxide compound is selected from the group consisting of alumina, aluminophosphate, aluminosilicate, and mixtures thereof.
16 more elements
A process to produce a catalyst composition, said process comprising:
- (1) contacting alumina with a solution containing zirconium tetraalkoxide, (Zr(OR)4), where R is an aliphatic radical containing one to twelve carbons, to produce a zirconium-containing alumina having from 1 to 10 weight percent zirconium based on the weight of the zirconium-containing alumina before calcining;
- (2) calcining the zirconium-containing alumina at a temperature within a range of 350 to 600° C. for 3 to 20 hours to produce a calcined composition;
- (3) contacting the calcined composition with carbon tetrachloride in the amount equal to 0.05 to 1 times the weight of the alumina before calcining for 10 minutes to 30 minutes to produce a chlorided, zirconium-containing alumina;
- (4) combining the chlorided, zirconium-containing alumina and bis(n-butylcyclopentadienyl) zirconium dichloride at a temperature within a range of 15° C. to 80° C. for about 1 minute to 1 hour to produce a mixture;
- and
- (5) combining the mixture and triethylaluminum to produce the catalyst composition.
3 more elements
A catalyst composition comprising a post-contacted organometal compound, a post-contacted organoaluminum compound, and a post-contacted treated solid oxide compound;
- wherein said treated solid oxide compound comprises at least one halogen, zirconium, and a solid oxide compound;
- wherein said halogen is selected from the group consisting of chlorine, bromine, and fluorine;
- wherein the solid oxide compound is selected from the group consisting of alumina, aluminophosphate, aluminosilicate, and mixtures thereof.
Dependencies are inferred from the claim text.