Organometal catalyst compositions
AssigneePhillips Petroleum Company
InventorsMax P. McDaniel, Kathy S. Collins, Anthony P. Eaton, Elizabeth A. Benham, Michael D. Jensen, Joel L. Martin, Gil R. Hawley
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Abstract
This invention provides a catalyst composition for polymerizing at least one monomer to produce a polymer, wherein said catalyst composition comprises an organometal compound, an organoaluminum compound, and a treated solid oxide compound comprising nickel, a halogen, and a solid oxide compound.
Claims32
A process to produce a catalyst composition, said process comprising contacting at least one organometal compound, respectively 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, organometallic groups, phosphorus groups, nitrogen groups, silicon, phosphorus, boron, and germanium;
- 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, organometallic groups, and substituted organometallic 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 alkyloxide groups, aryloxide groups, substituted aryloxide groups, organometallic groups, and substituted organometallic 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, organometallic groups, phosphorus groups, nitrogen groups, silicon, phosphorus, boron, and germanium;
- wherein at least one substituent on (X2) can be a bridging group which connects (X1) and (X2);
- wherein said organoaluminum compound has the 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;
- and
- wherein said treated solid oxide compound comprises nickel, respectively halogen, and at least one solid oxide compound;
- wherein said halogen is selected from the group consisting of chlorine and bromine;
- wherein said solid oxide compound is selected from the group consisting of alumina, aluminophosphate, aluminosilicate, and mixtures thereof.
A process to produce a catalyst composition, said process comprising:
- 1) contacting alumina with an aqueous solution containing nickel nitrate hexahydrate to produce a nickel-containing alumina having from 1 to 3 millimoles of nickel per gram of nickel-containing alumina before calcining;
- 2) calcining said nickel-containing alumina at a temperature within a range of 400 to 700° C. for 3 to 20 hours to produce a calcined composition;
- 3) contacting said calcined composition with carbon tetrachloride for 10 minutes to 30 minutes to produce a treated solid oxide compound having from 15 to 75% by weight chlorine based on the weight of the treated solid oxide compound before calcining;
- 4) combining said treated solid oxide compound and bis(n-butylcyclopentadienyl)zirconium dichloride at a temperature within a range of 15° C. to 50° C. to produce a mixture;
- and
- 5) after between 1 minute and 1 hour, combining said mixture and triethylaluminum to produce said catalyst composition.
Dependencies are inferred from the claim text.