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公开(公告)号:US07718838B2
公开(公告)日:2010-05-18
申请号:US11637407
申请日:2006-12-12
申请人: William M. Woodard , Warren M. Ewert , Harvey D. Hensley , Mark E. Lashier , Glyndal D. Cowan , Jeffrey W. Freeman , Ralph V. Franklin , Ronald D. Knudsen , Richard L. Anderson , Lyle R. Kallenbach , Bruce E. Kreischer
发明人: William M. Woodard , Warren M. Ewert , Harvey D. Hensley , Mark E. Lashier , Glyndal D. Cowan , Jeffrey W. Freeman , Ralph V. Franklin , Ronald D. Knudsen , Richard L. Anderson , Lyle R. Kallenbach , Bruce E. Kreischer
IPC分类号: C07C2/26
CPC分类号: B01J31/122 , B01J31/0231 , B01J31/04 , B01J31/143 , B01J31/181 , B01J2231/20 , B01J2531/62 , C07C2/30 , C07C2527/08 , C07C2527/10 , C07C2527/126 , C07C2527/135 , C07C2531/02 , C07C2531/14 , C07C2531/22 , Y02P20/584 , C07C11/107
摘要: A process is provided to stabilize and/or reactivate an olefin production catalyst system which comprises contacting an olefin production catalyst system, either before or after use, with an aromatic compound.
摘要翻译: 提供了一种稳定和/或重新活化烯烃生产催化剂体系的方法,其包括将烯烃生产催化剂体系在使用前或使用后与芳族化合物接触。
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公开(公告)号:US07157612B2
公开(公告)日:2007-01-02
申请号:US10872250
申请日:2004-06-18
申请人: Warren M. Ewert , William M. Woodard , Harvey D. Hensley , Mark E. Lashier , Glyndal D. Cowan , Jeffrey W. Freeman , Ralph V. Franklin , Ronald D. Knudsen , Richard L. Anderson , Lyle R. Kallenbach , Bruce E. Kreischer
发明人: Warren M. Ewert , William M. Woodard , Harvey D. Hensley , Mark E. Lashier , Glyndal D. Cowan , Jeffrey W. Freeman , Ralph V. Franklin , Ronald D. Knudsen , Richard L. Anderson , Lyle R. Kallenbach , Bruce E. Kreischer
CPC分类号: B01J31/122 , B01J31/0231 , B01J31/04 , B01J31/143 , B01J31/181 , B01J2231/20 , B01J2531/62 , C07C2/30 , C07C2527/08 , C07C2527/10 , C07C2527/126 , C07C2527/135 , C07C2531/02 , C07C2531/14 , C07C2531/22 , Y02P20/584 , C07C11/107
摘要: A process is provided to stabilize and/or reactivate an olefin production catalyst system which comprises contacting an olefin production catalyst system, either before or after use, with an aromatic compound.
摘要翻译: 提供了一种稳定和/或重新活化烯烃生产催化剂体系的方法,其包括将烯烃生产催化剂体系在使用前或使用后与芳族化合物接触。
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公开(公告)号:US06455648B1
公开(公告)日:2002-09-24
申请号:US09474067
申请日:1999-12-29
申请人: Jeffrey W. Freeman , Warren M. Ewert , Bruce E. Kreischer , Ronald D. Knudsen , Glyndal D. Cowan
发明人: Jeffrey W. Freeman , Warren M. Ewert , Bruce E. Kreischer , Ronald D. Knudsen , Glyndal D. Cowan
IPC分类号: C08F478
CPC分类号: B01J31/04 , B01J31/0244 , B01J31/122 , B01J31/143 , B01J2231/20 , B01J2531/62 , C07C2/30 , C07C2/32 , C07C2527/132 , C07C2531/02 , C07C2531/04 , C07C2531/12 , C07C2531/22
摘要: A process is provided which comprises preparing an olefin oligomerization or trimerization catalyst system and producing olefins in the presence of the olefin oligomerization or trimerization catalyst system and a solvent, wherein said catalyst system preparation comprises the steps of first contacting a chromium source and a pyrrole-containing compound to form a chromium/pyrrole mixture; second, contacting said chromium/pyrrole mixture with a metal alkyl to form a catalyst system; and then contacting said catalyst system with an alpha-olefin, preferably ethylene.
摘要翻译: 提供了一种方法,其包括在烯烃低聚或三聚催化剂体系和溶剂的存在下制备烯烃低聚或三聚催化剂体系和生产烯烃,其中所述催化剂体系制备包括以下步骤:首先使铬源和吡咯 - 以形成铬/吡咯混合物; 第二,使所述铬/吡咯混合物与烷基金属接触以形成催化剂体系; 然后使所述催化剂体系与α-烯烃(优选乙烯)接触。
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公开(公告)号:US4066417A
公开(公告)日:1978-01-03
申请号:US682933
申请日:1976-05-04
申请人: Charles A. Drake , Glyndal D. Cowan
发明人: Charles A. Drake , Glyndal D. Cowan
CPC分类号: B01J8/10
摘要: In a batch process in which fluid is contacted with solid particles in a vessel and withdrawn therefrom through a passageway, the passageway is provided with filtering means to prevent solid particles from escaping. The next batch of feed is introduced into the vessel through the same passageway causing displacement of the particles retained by the filtering means and carrying them back into the contacting zone of the vessel.
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