Method for catalyst preparation and process of polyolefin polymerization from said catalyst
Patents
| Language: |
Английский |
| Type: |
Patent request |
| Number |
WO 2008058749 A3 |
| Request number: |
PCT/EP2007/009917 |
| Request date: |
Nov 16, 2007 |
| patent.field.start_date: |
|
| Registration date: |
|
| patent.field.request_publication_date: |
May 22, 2008 |
| Authors |
Kidd T.J.
,
Quiroga Norambuena V.F.
,
Mikenas T.B.
,
Nikitin V.E.
,
Zakharov V.A.
|
| Affiliations |
| 1 |
Boreskov Institute of Catalysis SB RAS
|
| 2 |
DSM IP ASSETS BV
|
|
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 R<0>, 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.