Process for polymerization of olefins and catalysts therefor
Abstract
Abstract A PROCESS FOR THE POLYMERIZATION OF OLEFINS WHICH COMPRISES POLYMERIZING OR COPOLYMERIZING OLEFINS IN THE PRESENCE OF A CAALYST CONSISTING ESSENTIALLY OF: (A) A TITANIUM TRICHLORIDE COMPOSITION OBTAINED BY EXTRACING A CRUDE TITNIUM TRICHLORIDE COMPOSITION INCLUDING AN ALUMINUM-CONTAINING INORGANIC SUBSTANCE SUCH CRUDE TITANIUM TRICHLORIDE COMPOSITION BEING PREPARED BY REDUCING TITANIUM TETRACHLORIDE WITH AN ORGANOALUMINUM CHLORIDE EXPRESSED BY THE FOLLOWING FORMULA R3-NAICIN WHEREIN R IS AN ALKYL GROUP O 1-6 CARBON ATOMS OR AN ARYL GROUP, AND N IS A POSITIVE NUMBER GREATER THAN 0 (ZERO) BUT SMALLER THAN 3, WITH A MIXED SOLVENT COMPOSED OF (1) A MAIN SOLVENT SELECTED FROM THE GROUP CONSISTING OFF SATURATED ALIPHATIC HYDROCARBONS, AROMATIC HYDROCARBONS, HALOGENATED AROMATIC HYDROCARBONS, TRICHLORETHYLENE AND CARBON DISULFIDE AND (II) AN AUXILIARY SOLVENT SELECTED FROM THE GROUP CONSISTING OF OXYGEN-CONTAINING ORGANIC COMPOUNDS NITROGEN-CONTAINING ORGANIC COMPOUNDS, SILICON-CONTAINING ORGANIC COMPOUNDS AND THIOETHETS, AND SEPARATING THE TITANIM TRICHLORIDE COMPOSITION FROM THE EXTRACT; AND (B) AN ORGANOALUMINUM COMPOUND.
Inventors
- 👤 S Wada
- 👤 H Nishimura
- 👤 H Oi
- 👤 N Matsuzawa
Bibliographic Details
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