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1. 发明授权

US06220446B1 Particle size classifier 有权
标题翻译：粒度分类器
公开(公告)号：US06220446B1
公开(公告)日：2001-04-24
申请号：US09276178
申请日：1999-03-25
申请人： Reinhard H. Witt , Robert M. Holland, Jr.
发明人： Reinhard H. Witt , Robert M. Holland, Jr.
IPC分类号： B07B122
CPC分类号： B07B1/24
摘要： A particle size classifier in which feed material composed of product and overs moves downwardly through a separator unit by the action of negative pressures created by a first air blower associated with the collection of product and a second air blower associated with the collection of overs. As the feed material moves downwardly, the product and the overs are separated with the product passing from within a screen unit to outside the screen unit and the screen unit preventing passage of the overs. Blowback air, applied to the screen unit from the outside cleans the cylindrical screen unit to permit continued passage of product through the screen unit.
摘要翻译：一种粒度分级器，其中由产品和过滤器组成的进给材料通过由与产品收集相关联的第一鼓风机产生的负压的作用向下穿过分离器单元，以及与收集过滤器相关联的第二鼓风机。当进料向下移动时，产品和外部分离，产品从丝网单元内通过筛网单元外部，筛网单元防止通过。从外部施加到屏幕单元的回吹空气清洁圆柱形屏幕单元，以允许产品继续通过屏幕单元。

2. 发明授权

US5895770A Olefin polymerization catalysts with specific silica supports 失效
标题翻译：具有特定二氧化硅载体的烯烃聚合催化剂
公开(公告)号：US5895770A
公开(公告)日：1999-04-20
申请号：US822453
申请日：1997-03-21
申请人： Thomas J. Pullukat , Carl A. Gillings , Reinhard H. Witt
发明人： Thomas J. Pullukat , Carl A. Gillings , Reinhard H. Witt
IPC分类号： B01J21/08 , B01J35/10 , C08F4/02 , C08F4/659 , C08F4/6592 , C08F10/00 , B01J21/12 , B01J21/14
CPC分类号： C08F10/00 , B01J21/08 , B01J23/26 , B01J35/023 , B01J35/1019 , B01J35/1047 , C08F4/65912 , C08F4/65925
摘要： A transition metal containing catalyst having a silica-support is provided for the production of polyolefins from .alpha.-olefins that can be converted to polymer films, preferably thin films of polyolefin, which have lower defects resulting from a decreased presence of silica-containing residues from the catalyst. The catalyst has a porous silica support component and a catalytic component which may include, but is not limited to, such materials as chromium, magnesium-titanium (Ziegler-Natta type) or metallocene compounds (Metallocene catalyst type). The porous silica component of the catalyst has an average pore volume of from about 2.5 to about 3.5 ml/g and a surface area of 200 to 400 m.sup.2 /g and preferably 250 to 350 m.sup.2 /g. The average pore diameter ranges from about 285 to about 700 Angstroms and preferably 500-700 Angstroms for porous silica components having surface areas of 200 m.sup.2 /g and preferably 285-400 Angstroms for porous silica components having surface areas of 350 m.sup.2 /g. Preferably, the average particle size of the silica component may range from 44 to about 150 microns in diameter.
摘要翻译：提供了含有二氧化硅载体的含过渡金属的催化剂，用于从可以转化为聚合物膜的α-烯烃制备聚烯烃，优选聚烯烃薄膜，其具有由于含二氧化硅残留物的存在降低而导致的较低缺陷催化剂。催化剂具有多孔二氧化硅载体组分和催化组分，其可以包括但不限于铬，镁 - 钛（齐格勒 - 纳塔型）或茂金属化合物（茂金属催化剂型）等材料。催化剂的多孔二氧化硅组分的平均孔体积为约2.5至约3.5ml / g，表面积为200-400m2 / g，优选250-350m2 / g。对于表面积为350m 2 / g的多孔二氧化硅组分，平均孔径为约285至约700埃，优选为500-700埃，表面积为200m 2 / g，优选为285-400埃的多孔二氧化硅组分。优选地，二氧化硅组分的平均粒径可以在44至约150微米的范围内。

3. 发明授权

US5149553A Beer processing and composition 失效
标题翻译：啤酒加工和组成
公开(公告)号：US5149553A
公开(公告)日：1992-09-22
申请号：US700205
申请日：1991-06-06
申请人： Kenneth A. Berg , Reinhard H. Witt , M. Robert Derolf
发明人： Kenneth A. Berg , Reinhard H. Witt , M. Robert Derolf
IPC分类号： C12H1/044
CPC分类号： C12H1/0408
摘要： A composition that provides improved chillproofing of beer and other beverages is disclosed. The composition comprises a silica gel reacted with a metal, said metal having the capability of being sorbed and desorbed from the silica gel in response to pH and concentration changes.
摘要翻译： PCT No.PCT / US90 / 05858 Sec。 371日期1991年6月6日 102（e）日期1991年6月6日PCT 1990年10月11日提交。一种提供改进的啤酒和其他饮料的防寒性的组合物。所述组合物包含与金属反应的硅胶，所述金属响应于pH和浓度变化具有被吸附并从硅胶解吸的能力。

4. 发明授权

US6001764A Olefin polymerization catalysts with specific silica supports 失效
标题翻译：具有特定二氧化硅载体的烯烃聚合催化剂
公开(公告)号：US6001764A
公开(公告)日：1999-12-14
申请号：US75279
申请日：1998-05-08
申请人： Thomas J. Pullukat , Ronald S. Shinomoto , Reinhard H. Witt
发明人： Thomas J. Pullukat , Ronald S. Shinomoto , Reinhard H. Witt
IPC分类号： B01J31/00 , C08F4/02 , C08F10/00
CPC分类号： C08F10/00 , C08F110/02
摘要： A catalyst having a high pore volume, high surface area porous silica support and a non-metallocene, Ziegler-Natta catalytic component incorporated on the silica support is provided for the production of polyolefins from .alpha.-olefins. The porous silica support is made up of silica gel particles having an average surface area of about 600 to about 800 m.sup.2 /g of silica and an average pore volume of about 2.5 to about 4.0 ml/g of silica. Preferably, the silica particles have an average surface area of about 650 to about 750 m.sup.2 /g of silica and an average pore volume of about 2.75 to about 3.25 ml/g of silica. Even more preferably, the silica particles have an average surface area of about 700 m.sup.2 /g of silica and an average pore volume of about 3.0 ml/g of silica. The catalytic component comprises a complex product of a transition metal halide and a metal alkyl which excludes cyclopentadienyl rings.
摘要翻译：提供了一种具有高孔体积，高表面积多孔二氧化硅载体和非金属茂的催化剂，并入二氧化硅载体上的齐格勒 - 纳塔催化组分用于从α-烯烃生产聚烯烃。多孔二氧化硅载体由具有约600至约800m 2 / g二氧化硅的平均表面积和约2.5至约4.0ml / g二氧化硅的平均孔体积的硅胶颗粒组成。优选地，二氧化硅颗粒的平均表面积为约650至约750m 2 / g二氧化硅，平均孔体积为约2.75至约3.25ml / g二氧化硅。甚至更优选地，二氧化硅颗粒的平均表面积为约700m 2 / g二氧化硅，平均孔体积为约3.0ml / g二氧化硅。催化组分包括过渡金属卤化物和不包括环戊二烯基环的金属烷基的复合产物。

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