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1.发明授权
公开(公告)号：US5595649A
公开(公告)日：1997-01-21
申请号：US389260
申请日：1995-02-16
IPC分类号： B01D15/00 , B01D15/08 , B01D39/16 , B01D53/02 , B01J20/28 , B01J20/281 , B01J47/00 , D04H1/54 , D04H1/56 , G01N1/10 , G01N30/52 , G01N30/88
CPC分类号： B01J20/28028 , B01D15/08 , B01J20/28014 , B01J20/28033 , B01J20/28052 , B01J20/28085 , B01J47/007 , D04H1/54 , D04H1/56 , B01D15/361 , B01D15/3804 , B01D15/3833 , G01N2030/528 , Y10S428/903 , Y10T156/1007 , Y10T156/1043 , Y10T428/249986 , Y10T428/25 , Y10T442/626 , Y10T442/699
摘要： A particle loaded, porous, fibrous compressed or fused article comprises a nonwoven fibrous polymeric web, which preferably is thermoplastic, melt-extrudable, and pressure-fusible blown microfibrous web, and sorptive particles enmeshed in said web, the particle loaded fibrous article has a Gurley number of at least two seconds, and the article is useful in separation science. A method of preparation of the article and method of use is also disclosed.
摘要翻译： 颗粒负载的，多孔的，纤维状的压缩或熔融制品包括非织造纤维聚合物网，其优选是热塑性，可熔融挤出和压力熔融的吹塑微纤维网，以及嵌入所述纤维网中的吸附颗粒，负载纤维的纤维制品具有 Gurley数至少为2秒，该文章在分离科学中是有用的。 还公开了制品的制备方法和使用方法。
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公开(公告)号：US5403489A
公开(公告)日：1995-04-04
申请号：US81647
申请日：1993-06-24
申请人： Donald F. Hagen , Craig G. Markell
发明人： Donald F. Hagen , Craig G. Markell
IPC分类号： G01N1/10 , B01D15/00 , B01D43/00 , B01D61/00 , B01D65/00 , B01D65/02 , C02F1/00 , G01N30/00 , B01D15/04
CPC分类号： B01D43/00 , B01D15/00 , B01D15/08 , B01D61/00 , B01D65/00 , B01D65/02 , B01D2321/2083 , Y10S210/909
摘要： A method and apparatus for performing solid phase extraction (SPE) on a fluid that contains solubles and suspended solids. The method includes: (a) providing a volume of fluid that contains solubles and suspended solids, (b) processing the volume of fluid to extract solubles therefrom by the steps comprising: (i) passing a first portion of the volume of fluid through a SPE medium that has first and second sides, the first portion of the volume of fluid passing through the SPE medium from the first side to the second side; and then (ii) passing a second portion of the volume of fluid through the SPE medium from the second side to the first side; and (c) repeating step (b) a plurality of times such that no substantial amount of the suspended solids is removed from the processed volume of fluid and solubles are retained on the SPE medium. The apparatus includes a conduit, a SPE medium located in the conduit, and a fluid flow direction altering mechanism or a SPE rotating mechanism.
摘要翻译： 在含有可溶物和悬浮固体的流体上进行固相萃取（SPE）的方法和装置。 该方法包括：（a）提供含有可溶物和悬浮固体的体积的流体，（b）通过以下步骤处理流体的体积以从中提取可溶物，所述步骤包括：（i）将流体体积的第一部分通过 SPE介质，其具有第一和第二侧，流体体积的第一部分从第一侧通过SPE介质到第二侧; 然后（ii）将所述体积的流体的第二部分从所述第二侧通过所述SPE介质到所述第一侧; 和（c）多次重复步骤（b），使得没有大量的悬浮固体从处理体积的流体中除去，可溶物保留在SPE介质上。 该设备包括导管，位于导管中的SPE介质，以及流体流动方向改变机构或SPE旋转机构。
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3.发明授权Separation method using controlled pore composite polytetrafluoroethylene article 失效使用受控孔复合聚四氟乙烯制品的分离方法
公开(公告)号：US5207915A
公开(公告)日：1993-05-04
申请号：US897110
申请日：1992-06-11
CPC分类号： B01J20/28033 , B01D15/08 , B01J20/28028 , B01J20/28069 , B01J20/28078 , B01D15/361 , B01D15/40 , G01N2030/528
摘要： A composite article having controlled void volume and mean pore size comprises:(a) polytetrafluoroethylene (PTFE) fibril matrix, and(b) insoluble, non-swellable sorptive particles enmeshed in said matrix, the ratio of non-swellable sorptive particles to PTFE is in the range of 40:1 to 1:4 by weight, the composite article having a porosity in the range of 30 to 80 percent void volume and a mean pore size in the range of 0.3 to 5 micrometers, preferably with at least 90 percent of pores having a size less than 3.6 micrometers.The article is prepared by incorporating lubricant in the precursor admixture in an amount sufficient to exceed the lubricant sorptive capacity of the particles by at least 3 weight percent and up to an amount at which the mass loses its integrity.
摘要翻译： 具有控制的空隙体积和平均孔径的复合制品包括：（a）聚四氟乙烯（PTFE）原纤维基质，和（b）不溶的不溶胀的吸附颗粒，其嵌入所述基质中，非溶胀性吸附颗粒与PTFE的比例为 在40:1至1:4的范围内，该复合制品的孔隙率在30至80％范围内，空隙体积和平均孔径在0.3至5微米的范围内，优选至少为90％ 的孔尺寸小于3.6微米。 该制品通过将前体混合物中的润滑剂以足以超过颗粒的润滑剂吸附能力至少3重量％的量并且高达质量损失其完整性的量来制备。
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4.发明授权
公开(公告)号：US5415779A
公开(公告)日：1995-05-16
申请号：US198527
申请日：1994-02-17
IPC分类号： B01D15/00 , B01D15/08 , B01D39/16 , B01D53/02 , B01J20/28 , B01J20/281 , B01J47/00 , D04H1/54 , D04H1/56 , G01N1/10 , G01N30/52 , G01N30/88
CPC分类号： B01J20/28028 , B01D15/08 , B01J20/28014 , B01J20/28033 , B01J20/28052 , B01J20/28085 , B01J47/007 , D04H1/54 , D04H1/56 , B01D15/361 , B01D15/3804 , B01D15/3833 , G01N2030/528 , Y10S428/903 , Y10T156/1007 , Y10T156/1043 , Y10T428/249986 , Y10T428/25 , Y10T442/626 , Y10T442/699
摘要： A particle loaded, porous, fibrous compressed or fused article comprises a nonwoven fibrous polymeric web, which preferably is thermoplastic, melt-extrudable, and pressure-fusible blown microfibrous web, and sorptive particles enmeshed in said web, the particle loaded fibrous article has a Gurley number of at least two seconds, and the article is useful in separation science. A method of preparation of the article and method of use is also disclosed.
摘要翻译： 颗粒负载的，多孔的，纤维状的压缩或熔融制品包括非织造纤维聚合物网，其优选是热塑性，可熔融挤出和压力熔融的吹塑微纤维网，以及嵌入所述纤维网中的吸附颗粒，负载纤维的纤维制品具有 Gurley数至少为2秒，该文章在分离科学中是有用的。 还公开了制品的制备方法和使用方法。
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公开(公告)号：US5340746A
公开(公告)日：1994-08-23
申请号：US2198
申请日：1993-01-08
CPC分类号： G01N31/22 , Y10T436/172307
摘要： Composite reactive articles are useful for quantifying cyanide ions in solution. The composite reactive articles can be porous reactive supports comprising an inert substrate having immobilized thereon finely divided gold. The porous reactive supports can be particulate, porous fibrous membranes, or solution-cast membranes. Alternatively, the composite reactive articles can comprise porous fibrous membranes having enmeshed therein the aforementioned porous supports which can be in particulate or fibrous forms. The method for quantifying cyanide ions in solution comprising the steps of contacting and passing a solution containing cyanide ions through a reactive support comprising a porous, high surface area, inert substrate on which is immobilized finely divided elemental gold at a controlled rate to provide for a time to provide sufficient contact time for the gold and cyanide ions to react and provide a soluble gold cyanide complex, recovering the effluent comprising said gold cyanide complex, and determining the quantity of cyanide present in the gold cyanide complex.
摘要翻译： 复合反应性物质可用于定量溶液中的氰化物离子。 复合反应性物品可以是多孔反应性载体，其包括在其上固定有细碎金的惰性底物。 多孔反应性载体可以是颗粒状，多孔纤维膜或溶液 - 流延膜。 或者，复合反应性制品可以包括多孔纤维膜，其中包含可以是颗粒或纤维形式的上述多孔载体。 用于定量溶液中的氰化物离子的方法包括以下步骤：使含有氰离子的溶液通过反应性载体接触并通过包含多孔，高表面积的惰性基质的步骤，在其上以受控的速率固定细分的元素金以提供 时间为金和氰离子提供足够的接触时间进行反应并提供可溶性氰化金络合物，回收包含所述氰化金络合物的流出物，并测定氰化金络合物中存在的氰化物的量。
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公开(公告)号：US5071610A
公开(公告)日：1991-12-10
申请号：US639515
申请日：1991-01-10
CPC分类号： B01J20/28069 , B01D15/08 , B01J20/28028 , B01J20/28033 , B01J20/28085 , B01D15/322 , B01D15/325 , G01N2030/528 , Y10S264/47
摘要： A composite article having controlled void volume and mean pore size comprises:(a) polytetrafluoroethylene (PTFE) fibril matrix, and(b) insoluble, non-swellable sorptive particles enmeshed in said matrix, the ratio of non-swellable sorptive particles to PTFE is in the range of 40:1 to 1:4 by weight, the composite article having a porosity in the range of 30 to 80 percent void volume and a mean pore size in the range of 0.3 to 5 micrometers, preferably with at least 90 percent of pores having a size less than 3.6 micrometers.The article is prepared by incorporating lubricant in the precursor admixture in an amount sufficient to exceed the lubricant sorptive capacity of the particles by at least 3 weight percent and up to an amount at which the mass loses its integrity.
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公开(公告)号：US5529686A
公开(公告)日：1996-06-25
申请号：US449518
申请日：1995-05-23
IPC分类号： G01N30/00 , B01D15/00 , B01D15/04 , B01D15/08 , B01D39/14 , B01J20/18 , B01J20/28 , B01J20/281 , G01N30/52 , G01N30/93
CPC分类号： G01N30/482 , B01D15/34 , B01J20/183 , B01J20/28004 , B01J20/28028 , B01J20/28033 , B01J20/28052 , B01J20/2808 , B01J2220/54 , G01N2030/528
摘要： A solid phase extraction or chromatographic medium comprises a porous nonwoven fibrous matrix comprising at least one of polytetrafluoroethylene and blown microfibers, and sorptive or reactive hydrophobic siliceous molecular sieve particulates enmeshed in said matrix, the ratio of molecular sieves to matrix being in the range of 40:1 to 1:40.
摘要翻译： 固相萃取或色谱介质包括多孔非织造纤维基质，其包含聚四氟乙烯和吹塑微纤维中的至少一种，以及嵌入所述基质中的吸附或反应性疏水性硅质分子筛颗粒，分子筛与基质的比例在40 ：1至1:40。
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公开(公告)号：US5238621A
公开(公告)日：1993-08-24
申请号：US906274
申请日：1992-06-26
CPC分类号： B01J20/28028 , B01D39/00 , B01J20/28011 , B01J20/28021 , B01J20/28033 , B01J20/28069 , B01J20/28078
摘要： A composite article comprising, in the unexpanded form, a fibrillated PTFE matrix and a combination of energy expandable hollow polymeric particles and sorptive particles, which composite, on applying energy such as steam, heat, or laser energy, provides an expanded article having increased void volume and decreased density. The expanded articles are porous and efficient articles for separation and purification applications. In flat or rolled form, the composite article can be used in separation devices.
摘要翻译： 包括未膨胀形式的原纤化PTFE基质和能量可膨胀中空聚合物颗粒和吸附颗粒的组合的复合制品，其在施加诸如蒸汽，热或激光能量的能量时复合，提供具有增加的空隙的膨胀制品 体积和密度降低。 膨胀制品是用于分离和纯化应用的多孔和高效制品。 复合制品可以平面或卷曲形式用于分离装置。
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公开(公告)号：US5738790A
公开(公告)日：1998-04-14
申请号：US812365
申请日：1997-03-05
IPC分类号： G01N30/00 , B01D15/00 , B01D15/04 , B01D15/08 , B01D39/14 , B01J20/18 , B01J20/28 , B01J20/281 , G01N30/52 , G01N30/93
CPC分类号： G01N30/482 , B01D15/34 , B01J20/183 , B01J20/28004 , B01J20/28028 , B01J20/28033 , B01J20/28052 , B01J20/2808 , B01J2220/54 , G01N2030/528
摘要： A solid phase extraction or chromatographic medium comprises a porous nonwoven fibrous matrix comprising at least one of polytetrafluoroethylene and blown microfibers, and sorptive or reactive hydrophobic siliceous molecular sieve particulates enmeshed in said matrix, the ratio of molecular sieves to matrix being in the range of 40:1 to 1:40.
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公开(公告)号：US5470532A
公开(公告)日：1995-11-28
申请号：US223737
申请日：1994-04-06
CPC分类号： G01N31/22 , Y10T436/172307
摘要： Composite reactive articles are useful for quantifying cyanide ions in solution. The composite reactive articles can be porous reactive supports comprising an inert substrate having immobilized thereon finely divided gold. The porous reactive supports can be particulate, porous fibrous membranes or solution-cast membranes. Alternatively, the composite reactive articles can comprise porous fibrous membranes having enmeshed therein the aforementioned porous supports which can be in particulate or fibrous forms.
摘要翻译： 复合反应性物质可用于定量溶液中的氰化物离子。 复合反应性物品可以是多孔反应性载体，其包括在其上固定有细碎金的惰性底物。 多孔反应性载体可以是颗粒状，多孔纤维膜或溶液 - 流延膜。 或者，复合反应性制品可以包括多孔纤维膜，其中包含可以是颗粒或纤维形式的上述多孔载体。
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