Patent ID: 7271124

Claim:
A catalyst system comprising a first component and a second component wherein: a) the first component comprises chromium on a support, wherein the support comprises fluorided alumina; and b) the second component comprises the combination of i) a metal halide compound, wherein the metal halide compound is a metal dihalide compound or a metal hydroxyhalide compound of a Group IIA or Group IIB metal of the Mendeleev Periodic Table; ii) a transition metal compound, wherein the transition metal compound comprises a transition metal of Group IVB or Group VB of the Mendeleev Periodic Table, and wherein the transition metal compound comprises at least one hydrocarbyl oxide ligand, at least one hydrocarbyl amide ligand, at least one hydrocarbyl imide ligand, or at least one hydrocarbyl thiolate ligand; and iii) a precipitating agent, wherein the precipitating agent is an organometallic compound of a Group I, II, or III metal of the Mendeleev Periodic Table; a metal halide or a metal oxyhalide of a Group IIIA, IVA, IVB, VA, or VB metal of the Mendeleev Periodic Table; a hydrogen halide; or an organic acid halide RC(O)X, wherein R is an alkyl, an aryl, a cycloalkyl, or a combination thereof having from 1 to about 12 carbon atoms, and X is a halogen atom.