Method for catalyst preparation and process of polyolefin polymerization from said catalyst
Patents
| Language: |
Английский |
| Type: |
Patent request |
| Number |
US 20100143719 A1 |
| Request number: |
12/513,612 |
| Request date: |
Nov 16, 2007 |
| patent.field.start_date: |
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| Registration date: |
|
| patent.field.request_publication_date: |
Jun 10, 2010 |
The invention relates to a method for the preparation of a catalyst suitable for the polymerisation of an olefin by contacting a magnesium compound with a halogenized group 4 or 5 metal compound, wherein the magnesium compound is obtained by the reaction of a solution of an organomagnesium compound with a silicon mixture or compound, characterized in that (a) the organomagnesium compound solution is obtained by contacting metallic magnesium Mg with an aromatic halide RX and an ether R0, wherein R is an aromatic group containing 6 to 20 carbons and X is a halide, and (b) the silicon mixture or compound is the product obtained by mixing or reacting a hydrocarbyl halide silane with an alkoxy group or aryloxy group containing silane compound.