Process for producing polymers using a composition comprising an organometal compound, a treated solid oxide compound, and an organoaluminum compound

A process of using a catalyst composition to polymerize at least one monomer to produce a polymer, said process comprising contacting said catalyst composition and said at least one monomer in a polymerization zone under polymerization conditions to produce said polymer;

• wherein said catalyst composition is produced by a process comprising:
• 1) contacting alumina with zinc chloride to produce a zinc-containing alumina;
• 2) calcining said zinc-containing alumina at 600° C. for 3 hours and simultaneously contacting with carbon tetrachloride to produce a treated solid oxide compound;
• 3) combining said treated solid oxide compound with bis(n-buytlcyclopentadieny)zirconium chloride at a temperature in a range of about 25 to about 100° C. to produce a mixture;
• and
• 4) about between 1 minute and 1 hour, combining said mixture and triethylaluminum to produce said catalyst composition.

A process of using a catalyst composition to polymerize at least one monomer to produce a polymer, said process comprising contacting said catalyst composition and said at least one monomer in a polymerization zone under polymerization conditions to produce said polymer;

• wherein said catalyst composition is produced by a process comprising:
• 1) contacting an oxide selected from alumina, silica-alumina, aluminophosphate, and mixtures thereof with at least one metal salt to give a metal salt infused oxide;
• 2) calcining said metal salt infused oxide to produce a calcined metal salt infused oxide;
• 3) contacting said calcined metal salt infused oxide with a treating agent selected from sulfating agents, fluoriding agents, and chloriding agents to produce a treated oxide;
• 4) combining (1) said treated oxide, (2) an organoaluminum compound selected from triethylaluminum, triisobutylaluminum, and mixtures thereof;
• and (3) an organometal compound.

A process of using a catalyst composition to polymerize at least one monomer to produce a polymer, said process comprising contacting said catalyst composition and said at least one monomer in a polymerization zone under polymerization conditions to produce said polymer;

• wherein said catalyst composition is produced by a process comprising:
• 1) impregnating alumina with an aqueous solution of zinc chloride, said solution also containing a small amount of nitric acid to give an impregnated alumina;
• 2) drying said impregnated alumina to give a dried impregnated alumina;
• 3) calcining said dried impregnated alumina to give a calcined impregnated alumina;
• 4) treating said calcined impregnated alumina with carbon tetrachloride at an elevated temperature to give a treated alumina;
• 5) combining said treated alumina with triethylaluminum and bis(n-butylcyclopentadienyl)zirconium dichloride.