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公开(公告)号：US5187246A
公开(公告)日：1993-02-16
申请号：US544547
申请日：1990-06-26
CPC分类号： C08F10/02 , Y10S526/901
摘要： An improved polymerization process for making essentially non-agglomerated ethylene polymers, especially EPR polymers, based on the use of a high activity vanadium catalyst, which utilizes an alkylated metal chain transfer agent to moderate the kinetics of the polymerization reaction so as to avoid formation of an undesirable amount of agglomerated polymer.
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公开(公告)号：US4772736A
公开(公告)日：1988-09-20
申请号：US124084
申请日：1987-11-23
摘要： A process for the preparation of aluminoxanes comprising introducing, under reaction conditions, at least one stream of water beneath the surface of an agitated solution of a hydrocarbyl aluminum compound in such a manner that the stream of water is essentially immediately dispersed on contact with the solution.
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公开(公告)号：US4892853A
公开(公告)日：1990-01-09
申请号：US251360
申请日：1988-09-30
CPC分类号： C08F10/02
摘要： A vanadium catalyst composition comprising:(i) the reaction product of a vanadium compound and an electron donor, which is a liquid, organic Lewis base in which the vanadium compound is soluble;(ii) a hydrocarbyl aluminum cocatalyst; and(iii) a promoter having the following formula:C.sub.3 (X).sub.a (F).sub.b (H).sub.cwherein X is chlorine, bromine, or iodine, and each X can be alike or differenta=an integer from 6 to 8b=an integer from 0 to 2c=an integer from 0 to 2a+b+c=8
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4.发明授权
公开(公告)号：US5068489A
公开(公告)日：1991-11-26
申请号：US458390
申请日：1989-12-28
IPC分类号： C08F2/34 , C08F4/60 , C08F4/658 , C08F4/659 , C08F10/00 , C08F210/02 , C08F210/16
CPC分类号： C08F210/16 , Y10S526/905
摘要： Ethylene copolymers having a very low molecular weight are continuously prepared in a fluidized bed in the presence of reduced concentrations of hydrogen, at improved catalyst activity and polymer productivity, by effecting polymerization in the presence of a dialkylzinc compound.
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公开(公告)号：US4406867A
公开(公告)日：1983-09-27
申请号：US339166
申请日：1982-01-13
CPC分类号： B01D53/1493 , B01D53/1425 , B01D53/1475 , C01B13/0285 , C01B21/0411 , C01B21/0488 , C01B23/00 , C01B3/52 , C07C7/11 , C01B2203/0415 , C01B2203/0465 , C01B2203/0475 , C01B2203/0485 , C01B2203/0495 , C01B2210/0051 , C01B2210/0056 , C01B2210/0057 , C01B2210/0062 , C01B2210/0064 , C01B2210/0067 , C01B2210/0068 , C01B2210/0071 , Y02C10/06 , Y02P20/152
摘要： Regenerative process for the purification of a non-reacting industrial gas stream by removal of trace amounts of carbon dioxide therefrom, comprising contacting said gas stream with non-aqueous liquid solution of at least one member selected from the group consisting of: (a) hydroxides and weak acid salts of sodium, potassium, and lithium and (b) specific liquid aliphatic polyhydric alcohol; separating the purified industrial gas from the reaction products of said contacting step including said solution; increasing said reaction products stream to an elevated temperature up to 200.degree. C.; reducing the partial pressure of carbon dioxide in the vapor phase above said reaction product stream; separating carbon dioxide from said reaction product stream; and recycling the treated reaction product stream to said liquid body of said solution for contacting a further quantity of said industrial gas stream.
摘要翻译： 通过从其中除去痕量的二氧化碳来净化非反应性工业气体流的再生方法，包括使所述气流与选自以下的至少一种的非水液体溶液接触：（a）氢氧化物 和钠，钾和锂的弱酸盐和（b）特定的液体脂族多元醇; 将纯化的工业气体与包括所述溶液的所述接触步骤的反应产物分离; 将所述反应产物流增加至高达200℃的升高温度; 降低在所述反应产物流之上的气相中二氧化碳的分压; 从所述反应产物流中分离二氧化碳; 并将经处理的反应产物流再循环到所述溶液的液体中，以接触另外数量的所述工业气流。
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6.发明授权Catalyst for regulating the molecular weight distribution of ethylene polymers 失效用于调节乙烯聚合物分子量分布的催化剂
公开(公告)号：US4923938A
公开(公告)日：1990-05-08
申请号：US339590
申请日：1989-04-14
申请人： Sun-Chueh Kao , Kevin J. Cann , Frederick J. Karol , Arthur E. Marcinkowsky , Mark G. Goode , Eugene H. Theobald
发明人： Sun-Chueh Kao , Kevin J. Cann , Frederick J. Karol , Arthur E. Marcinkowsky , Mark G. Goode , Eugene H. Theobald
IPC分类号： C08F10/00
CPC分类号： C08F10/00
摘要： A vanadium-based catalyst is treated with certain oxygen-containing compounds as a means of narrowing and effectively regulating the molecular weight distribution of the polymers produced with the catalyst.
摘要翻译： 用某些含氧化合物处理钒基催化剂作为缩小并有效调节用催化剂生产的聚合物的分子量分布的手段。
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公开(公告)号：US4313916A
公开(公告)日：1982-02-02
申请号：US141141
申请日：1980-04-17
CPC分类号： C07C7/11 , B01D53/1425 , B01D53/1475 , B01D53/1493 , C01B13/0285 , C01B21/0411 , C01B21/0488 , C01B23/00 , C01B3/52 , C01B2203/0415 , C01B2203/0465 , C01B2203/0475 , C01B2203/0485 , C01B2203/0495 , C01B2210/0051 , C01B2210/0056 , C01B2210/0057 , C01B2210/0062 , C01B2210/0064 , C01B2210/0067 , C01B2210/0068 , C01B2210/0071 , Y02C10/06 , Y02P20/152
摘要： A process is disclosed for the purification of an inert or non-reacting gas such as lower mono-olefins by the removal of trace amounts of reacting impurities such as carbon dioxide therefrom, comprising passing said gas through an essentially non-aqueous liquid solution of alkali or alkaline earth metal hydroxides and/or weak acid salts and certain selected liquid polyhydric alcohols.
摘要翻译： 公开了通过从其中除去痕量的反应杂质如二氧化碳来纯化惰性或非反应性气体如低级单烯烃的方法，包括使所述气体通过基本上非水性的碱性液体溶液 或碱土金属氢氧化物和/或弱酸盐和某些选定的液体多元醇。
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8.发明授权
公开(公告)号：US4220803A
公开(公告)日：1980-09-02
申请号：US919481
申请日：1978-06-27
CPC分类号： C07C45/38 , C07C51/235
摘要： A process for producing acetic acid and acetaldehyde from ethanol which comprises contacting a mixture of ethanol and oxygen with a supported copper oxide catalyst essentially free of barium, the mole ratio of oxygen to ethanol being from about 0.1 to about 0.5.
摘要翻译： 一种从乙醇生产乙酸和乙醛的方法，包括使乙醇和氧气的混合物与基本上不含钡的负载氧化铜催化剂接触，氧气与乙醇的摩尔比为约0.1至约0.5。
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公开(公告)号：US4988783A
公开(公告)日：1991-01-29
申请号：US473104
申请日：1990-02-02
申请人： Debra L. Beran , Kevin J. Cann , Robert J. Jorgensen , Frederick J. Karol , Norma J. Maraschin , Arthur E. Marcinkowsky
发明人： Debra L. Beran , Kevin J. Cann , Robert J. Jorgensen , Frederick J. Karol , Norma J. Maraschin , Arthur E. Marcinkowsky
IPC分类号： C08F10/02 , C08F210/16
CPC分类号： C08F10/02 , C08F210/16 , Y10S526/901
摘要： An ethylene polymerization catalyst comprising a supported precursor of vanadium trihalide/electron donor complex and alkylaluminum or boron halides, when combined with alkylaluminum cocatalyst and alkyl halide promoter, provides enhanced polymerization and productivity plus superior polyethylene.
摘要翻译： 当与烷基铝助催化剂和烷基卤促进剂组合时，包含三卤化钒/电子给体络合物和烷基铝或卤化硼的负载型前体的乙烯聚合催化剂提供增强的聚合和生产率以及优异的聚乙烯。
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公开(公告)号：US4508842A
公开(公告)日：1985-04-02
申请号：US480297
申请日：1983-03-29
申请人： Debra L. Beran , Kevin J. Cann , Robert J. Jorgensen , Frederick J. Karol , Norma J. Maraschin , Arthur E. Marcinkowsky
发明人： Debra L. Beran , Kevin J. Cann , Robert J. Jorgensen , Frederick J. Karol , Norma J. Maraschin , Arthur E. Marcinkowsky
CPC分类号： C08F10/02 , C08F210/16
摘要： An ethylene polymerization catalyst comprising a supported precursor of vanadium trihalide/electron donor complex and alkylaluminum or boron halides, when combined with alkylaluminum cocatalyst and alkyl halide promoter provides enhanced polymerization and productivity plus superior polyethylene.
摘要翻译： 包含三卤化钒/电子给体络合物和烷基铝或卤化硼的负载型前体的乙烯聚合催化剂当与烷基铝助催化剂和烷基卤助催化剂组合时，提供增强的聚合和生产率以及优异的聚乙烯。
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