发明授权
US08497330B2 Methods for polymerization using spray dried and slurried catalyst
有权
使用喷雾干燥和浆化催化剂进行聚合的方法
- 专利标题： Methods for polymerization using spray dried and slurried catalyst
- 专利标题（中）： 使用喷雾干燥和浆化催化剂进行聚合的方法
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申请号： US12976059申请日： 2010-12-22
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公开(公告)号： US08497330B2公开(公告)日： 2013-07-30
- 发明人: F. David Hussein , Kevin J. Cann , Ann M. Schoeb-Wolters , Phuong A. Cao , Bruce J. Savatsky , Eric J. Markel , Daniel P. Zilker, Jr. , Garth R. Giesbrecht
- 申请人： F. David Hussein , Kevin J. Cann , Ann M. Schoeb-Wolters , Phuong A. Cao , Bruce J. Savatsky , Eric J. Markel , Daniel P. Zilker, Jr. , Garth R. Giesbrecht
- 申请人地址： US TX Houston
- 专利权人： Univation Technologies, LLC
- 当前专利权人： Univation Technologies, LLC
- 当前专利权人地址： US TX Houston
- 代理商 Jennifer A. Schmidt; Kristina Leavitt
- 主分类号： C08F4/64
- IPC分类号： C08F4/64 ; C08F4/76 ; C08F4/52 ; C08F2/34
摘要：
Methods for gas phase olefin polymerization are provided. The method can include combining a spray dried catalyst system with a diluent to produce a catalyst slurry. The catalyst system can include a metallocene compound. Ethylene, a continuity additive, and the catalyst slurry can be introduced to a gas phase fluidized bed reactor. The reactor can be operated at conditions sufficient to produce a polyethylene. The spray dried catalyst system can have a catalyst productivity of at least 12,000 grams polyethylene per gram of the catalyst system.