Supported catalyst
AssigneeLyondell Petrochemical Company
InventorsSandor Nagy, John A. Tyrell
Life of this patent
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Abstract
Disclosed is a supported catalyst which is the reaction product of (a) a silylamine polymer having the general formula ##STR1## where each R is independently selected from alkyl from C.sub.1 to C.sub.6 or aryl from C.sub.6 to C.sub.10, R.sub.1 is a divalent aliphatic or aromatic group from C.sub.2 to C.sub.20, "m" is 1 to about 100, and "n" is 2 to about 500, with (b) an organometallic compound having the general formula Q--M--(X).sub.3 where Q is a stabilizing ligand, each X is independently selected from halogen, alkyl from C.sub.1 to C.sub.6, or dialkylamino from C.sub.1 to C.sub.6, M is zirconium, titanium, or hafnium and M is bonded to a nitrogen in said silylamine polymer, and the ratio nitrogens bondable to M in said silylamine polymer to M atoms is 1:1 to 3:1.
Claims20
A supported catalyst comprising the reaction product of
- (a) a silylamine polymer having the general formula ##STR19## where each R is an alkyl from C.sub.1 to C.sub.6 or an aryl from C.sub.6 to C.sub.10, R.sub.1 is a divalent aliphatic or aromatic group from C.sub.2 to C.sub.20, "m" is 1 to about 100, and "n" is 2 to about 500, with
- (b) an organometallic compound having the general formula
- Q--M--(X).sub.3
- where Q is selected from the group consisting of:
- (i.) a cyclopentadienyl ring structure of the formula:
- ##STR20## wherein each R.sub.4 is a C.sub.1 to C.sub.20 hydrocarbyl group and further wherein two adjacent R.sub.4 groups may form a ring fused to the cyclopentadienyl ring and s is a number from 0 to 5;
- (ii.) an alkyl substituted pyrrolyl or phospholyl ring of the formula:
- ##STR21## wherein Y is nitrogen or phosphorus and R.sub.5 is a C.sub.1 to C.sub.10 alkyl group or a C.sub.6 to C.sub.10 aryl group;
- and t is 1 to the maximum number of substitutable positions,
- (iii.) a borabenzene ring of the formula:
- ##STR22## wherein R.sub.6 is hydrogen, N(R).sub.2, or --OR or R;
- (iv.) a heterocyclic ring of the formula:
- ##STR23## wherein R.sub.7 is R, alkaryl from C.sub.6 to C.sub.12, aralkyl from C.sub.6 to C.sub.12, hydrogen or Si(R).sub.3, R.sub.8 is R.sub.6, halogen, COR, COOR, SOR, or SOOR, R.sub.9 is R.sub.8, OR, N(R).sub.2, SR, or a fused ring system;
- and z is 1 to 4;
- ##STR24## where Y is O, S, NR, ##STR25## each R.sub.10 is independently selected from the group consisting of C.sub.1 to C.sub.6 alkyl, C.sub.1 to C.sub.6 alkoxy, C.sub.6 to C.sub.16 aryl, halogen, and CF.sub.3, each R.sub.11 is a hydrogen or C.sub.1 to C.sub.6 alkyl, v is 0 to 4, and u is 1 to 4, each X is independently selected from the group consisting of halogen, alkyl from C.sub.1 to C.sub.6, and dialkylamino from C.sub.1 to C.sub.6, M is zirconium, titanium, or hafnium and M is bonded to a nitrogen in said silylamine polymer, and the ratio of nitrogens bonded to M in said silylamine polymer to M atoms is 1:1 to 3:1.
A method of making a supported catalyst comprising reacting a silylamine polymer having the general formula ##STR30## where each R is an alkyl from C.sub.1 to C.sub.6 or an aryl from C.sub.6 to C.sub.10, R.sub.1 is a divalent aliphatic or aromatic group from C.sub.2 to C.sub.20, "m" is 1 to about 100, and "n" is 2 to about 500, with an organometallic compound having the general formula
- Q--M--(X).sub.3
- where Q is selected from the group consisting of:
- (i.) a cyclopentadienyl ring structure of the formula:
- ##STR31## wherein each R.sub.4 is a C.sub.1 to C.sub.20 hydrocarbyl group and further wherein two adjacent R.sub.4 groups may form a ring fused to the cyclopentadienyl ring;
- and s is a number from 0 to 5;
- (ii.) an alkyl substituted pyrrolyl or phospholyl ring of the formula:
- ##STR32## wherein Y is nitrogen or phosphorus and R.sub.5 is a C.sub.1 to C.sub.10 alkyl group or a C.sub.6 to C.sub.10 aryl group;
- and t is 1 to the maximum number of substitutable positions;
- (iii.) a borabenzene ring of the formula:
- ##STR33## wherein R.sub.6 is hydrogen, N(R).sub.2, or --OR or R;
- (iv.) a hetrocyclic ring of the formula:
- ##STR34## wherein R.sub.7 is R, alkaryl from C.sub.6 to C.sub.12, aralkyl from C.sub.6 to C.sub.12, hydrogen or Si(R).sub.3, R.sub.8 is R.sub.6, halogen, COR, COOR, SOR, or SOOR, R.sub.9 is R.sub.8, OR, N(R).sub.2, SR, or a fused ring system;
- and z is 1 to 4;
- or ##STR35## where Y is O, S, NR, ##STR36## each R.sub.10 is independently selected from the group consisting of C.sub.1 to C.sub.6 alkyl, C.sub.1 to C.sub.6 alkoxy, C.sub.6 to C.sub.16 aryl, halogen, and CF.sub.3, each R.sub.11 is a C.sub.1 to C.sub.6 alkyl, v is 0 to 4, and u is 1 to 4, each X is independently selected from the group consisting of halogen, alkyl from C.sub.1 to C.sub.6, and dialkylamino from C.sub.1 to C.sub.6, M is zirconium, titanium, or hafnium and M is bonded to a nitrogen in said silylamine polymer, and the ratio of nitrogens bonded to M in said silylamine polymer to M atoms is 1:1 to 3:1.
A supported catalyst having the general formula ##STR38## where each M is Zr or Ti, each Q is substituted or unsubstituted cyclopentadienyl, indenyl, an alkyl substituted cyclopentadienyl, tetrahydroindenyl, fluorenyl and 2-methylindenyl, each X is halogen or methyl, each R is alkyl from C.sub.1 to C.sub.6, R.sub.1 is a 5 to 12 carbon atom aliphatic group, m is 1 to 6, and n is 4 to 50.
Dependencies are inferred from the claim text.