CATALIZADOR DE LA POLIMERIZACION DE ETILENO

• Main Author: STAKEM, FRANCIS GREGORY
• Format: Patent
• Language: Spanish
• Published: 01.10.1993
• Edition: 4
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

UN COMPOSICION CATALITICA QUE COMPRENDE: (I) UN COMPLEJO COMPRENDIDO DE V2X3(ED)M Y ALCL2R2 EN DONDE X = CL, BR, O I, O MEZCLAS DE ELLO ED = UN DONADOR DE ELECTRON, QUE ES UN ETER, UN FOSFINO, UN QUETONE, UN ISOCIANIDO, O UN ESTER, DICHO DONADOR DE ELECTRON TENIENDO DE 2 A 20 ATOMOS DE CARBONO R = UN ALQUIL QUE TIENE MAS DE 14 ATOMOS DE CARBONO M = UN ENTERO DE 3 A 6, DICHO COMPLEJO IMPREGNADO DENTRO DE UN SOPORTE DE OXIDO INORGANICO; (II) COMPONENTE TRIALQUILALUMINIO SUFICIENTE ADSORBIDO EN EL SOPORTE OXIDO INORGANICO PARA PROVEER UNA PROPORCION MOLAR DEL COMPONENTE TRIALQUILALUMINIO ADSORBIDO A VANADIO DE SOBRE 2.5:1 A SOBRE 10:1; (III) UN PROMOTOR HALOCARBONO; Y (IV) UN COCATALIZADOR DE ALUMINIO HIDROCARBIL. A catalyst composition comprising: (i) a complex comprised of V2X3(ED)m and AlCl2R2 wherein X = Cl, Br, or I, or mixtures thereof ED = an electron donor, which is an ether, a phosphine, a ketone, an isocyanide, or an ester, said electron donor having 2 to 20 carbon atoms R = an alkyl having up to 14 carbon atoms m = an integer from 3 to 6, said complex impregnated into an inorganic oxide support; (ii) sufficient trialkylaluminum compound adsorbed on the inorganic oxide support to provide a molar ratio of adsorbed trialkylaluminum compound to vanadium of about 2.5:1 to about 10:1; (iii) a halocarbon promoter; and (iv) a hydrocarbyl aluminum cocatalyst. (