METODO PARA PREPARAR Y USAR UN SISTEMA CATALITICO DE METALOCENO SOPORTADO

• Main Authors: PETTIJOHN, TED M, PALACKAL, SYRIAC J, WELCH, M. BRUCE, ALT, HELMUT G, PEIFER, BERND, GLASS, GARY L
• Format: Patent
• Language: Spanish
• Published: 01.04.2000
• Edition: 4
• Subjects: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOSITIONS BASED THEREON; GENERAL PROCESSES OF COMPOUNDING; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC CHEMISTRY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR PREPARATION OR CHEMICAL WORKING-UP; THEIR RELEVANT APPARATUS; TRANSPORTING; WORKING-UP

UN METODO DE PREPARACION DE UN SISTEMA CATALIZADOR SOLIDO QUE COMPRENDE AL MENOS UN METALOCENO, SIENDO AL MENOS ESTE DICLORURO DE ZIRCONIO 5 IQUIDO UN ORGANOALUMINOXANO Y AL MENOS DICHO METALOCENO PARA FORMAR UN SISTEMA CATALIZADOR LIQUIDO, (B) LLEVAR A CABO LA PREPOLIMERIZACION DE AL MENOS UNA OLEFINA EN PRESENCIA DE DICHO SISTEMA CATALIZADOR LIQUIDO, PRODUCIENDO UN CATALIZADOR SOLIDO PREPOLIMERIZADO, Y (C) SEPARAR EL SOLIDO RESULTANTE DEL LIQUIDO Y DE LOS COMPONENTES DISUELTOS EN DICHO LIQUIDO. A method for preparing a solid catalyst system comprising at least one metallocene, which at least one metallocene is 5-(9-fluorenyl)-5-(cyclopentadienyl)-hexene-1 zirconium dichloride, the method comprising (a) combining an organoaluminoxane and said at least one metallocene in a liquid to form a liquid catalyst system, (b) conducting prepolymerization of at least one olefin in the presence of said liquid catalyst system to produce a prepolymerized solid catalyst, and (c) separating the resulting solid from the liquid and components dissolved in said liquid.