发明授权
- 专利标题: Shape-shifted magnesium alkoxide component for polymerizing olefins
- 专利标题(中): 用于聚合烯烃的形状转化的醇镁组分
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申请号: US595777申请日: 1996-02-02
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公开(公告)号: US5604172A公开(公告)日: 1997-02-18
- 发明人: Burkhard E. Wagner , Daniel P. Zilker, Jr. , Robert J. Jorgensen
- 申请人: Burkhard E. Wagner , Daniel P. Zilker, Jr. , Robert J. Jorgensen
- 申请人地址: CT Danbury
- 专利权人: Union Carbide Chemicals & Plastics Technology Corporation
- 当前专利权人: Union Carbide Chemicals & Plastics Technology Corporation
- 当前专利权人地址: CT Danbury
- 主分类号: B01J21/10
- IPC分类号: B01J21/10 ; B01J37/08 ; C08F4/656 ; C08F10/00 ; C08F210/06 ; C08F210/16
摘要:
A process is provided for preparing a shape-shifted catalyst component comprising (1) contacting a dihydrocarbyloxide magnesium compound with carbon dioxide in the presence of a slurrying agent to form a slurry of a carboxylated dihydrocarbyloxide magnesium compound; (2) adding a filler to the slurry either before or after the carboxylation of step (1); (3) spray drying the slurry of step (2) to evaporate the slurrying agent and to produce solid particles of the carboxylated dihydrocarbyloxide magnesium compound incorporating the filler; and, optionally, (4) heating the solid particles to remove carbon dioxide to produce a shape-shifted dihydrocarbyloxide magnesium compound component. A catalyst system using the component and a polymerization process employing the catalyst system are also provided.