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公开(公告)号：US06858198B2
公开(公告)日：2005-02-22
申请号：US10051512
申请日：2002-01-18
摘要： Provided is a method for regulating the concentration of water in the acid feed stream in a process for the production of HF by the reaction with a fluorine containing material, the method comprising: (a) providing an acid feed stream comprising bound water and free water; (b) estimating the concentration of bound water and free water in the acid feed stream by providing a probe in said feed stream; and (c) adjusting the concentration of free water in said process stream based on said estimating step.
摘要翻译： 本发明提供一种通过与含氟材料反应生产HF的方法来调节酸进料流中的水浓度的方法，该方法包括：（a）提供含有结合水和游离水的酸进料流 ;（b）通过在所述进料流中提供探针来估计酸进料流中结合水和游离水的浓度; 和（c）基于所述估计步骤调节所述工艺流中的游离水的浓度。
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公开(公告)号：US5879629A
公开(公告)日：1999-03-09
申请号：US723655
申请日：1996-10-03
CPC分类号： G01N35/1097 , G01N35/085 , G01N2035/00227 , Y10T436/117497 , Y10T436/21 , Y10T436/2575
摘要： A method and analyzer for monitoring the progress of a chemical process in which a fixed volume sample of the reactive mixture of the chemical process is periodically gathered and injected into a fluid stream of a liquid carrier. The sample in the liquid carrier is passed through an infrared detector which detects the amount present in the sample of a species of the reaction mixture which is indicative of the progress of the chemical process.
摘要翻译： 一种用于监测化学过程进展的方法和分析器，其中化学过程的反应混合物的固定体积样品周期性地聚集并注入到液体载体的流体流中。 液体载体中的样品通过红外检测器，其检测反应混合物种类的样品中存在的量，这表明化学过程的进展。
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公开(公告)号：US5604132A
公开(公告)日：1997-02-18
申请号：US376711
申请日：1995-01-23
CPC分类号： G01N35/1097 , G01N35/085 , G01N2035/00227 , Y10T436/117497 , Y10T436/21 , Y10T436/2575
摘要： A method and analyzer for monitoring the progress of a chemical process in which a fixed volume sample of the reactive mixture of the chemical process is periodically gathered and injected into a fluid stream of a liquid carrier. The sample in the liquid carrier is passed through an infrared detector which detects the amount present in the sample of a species of the reaction mixture which is indicative of the progress of the chemical process.
摘要翻译： 一种用于监测化学过程进展的方法和分析器，其中化学过程的反应混合物的固定体积样品周期性地聚集并注入到液体载体的流体流中。 液体载体中的样品通过红外检测器，其检测反应混合物种类的样品中存在的量，这表明化学过程的进展。
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公开(公告)号：US5565172A
公开(公告)日：1996-10-15
申请号：US259107
申请日：1994-06-13
CPC分类号： G01N30/06 , G01N33/0047 , G01N2030/025 , G01N2030/642 , G01N2030/884 , Y10T436/16 , Y10T436/163333 , Y10T436/21 , Y10T436/216
摘要： A method and apparatus for detecting the presence of a vapor of an alkyl ester of phosphoric acid, particularly tributylphosphate, in ambient air. A sample of ambient air is heated to convert any alkyl ester of phosphoric acid to an alkene. The heated sample of air is then passed to a sample loop. Carrier air periodically carries a fixed volume of sample from the sample loop through a chromatographic column to a photoionization detector which detects the presence and amount of the alkene in the sample.
摘要翻译： 一种用于在环境空气中检测磷酸烷基酯，特别是磷酸三丁酯的蒸汽的存在的方法和装置。 将环境空气的样品加热以将任何磷酸烷基酯转化为烯烃。 然后将加热的空气样品通入样品环路。 载体空气周期性地将来自样品环的固定体积的样品通过色谱柱运送到检测样品中烯烃的存在和量的光电离检测器。
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5.发明授权
公开(公告)号：US5002651A
公开(公告)日：1991-03-26
申请号：US319984
申请日：1989-03-07
申请人： Brenda R. Shaw , Kenneth E. Creasy
发明人： Brenda R. Shaw , Kenneth E. Creasy
IPC分类号： G01N27/30 , G01N27/333 , G01N27/38 , H01M4/86
CPC分类号： G01N27/38 , G01N27/30 , G01N27/3335 , H01M4/86
摘要： Renewable composite microelectrodes for electrochemical applications are formed by an initial coating on an elongated conductive substrate of less than 500 micrometers over at least a portion of its length with a modifier composition, and a superposed coating of electronically resistive polymer. The initial coating is exposed only at the tip portion of the microelectrode. The initial coating may be an absorbed layer of the modifier, a homogeneous layer of a polymeric matrix with the modifier dispersed therein, or a layer of a polymer with a modifier in its chain. The modifier provides distinctive properties to the surface of the electrode which may be electroactivity, inclusion, acidic/basic, complexing/chelating or electrocatalysis. The microelectrode will normally be used with only the tip portion thereof immersed in the solution, and it may be renewed by removing the contaminated tip portion.
摘要翻译： 用于电化学应用的可再生复合微电极通过在其长度的至少一部分上具有小于500微米的细长导电基底上的初始涂层形成，其具有改性剂组合物，以及电子电阻聚合物的叠加涂层。 初始涂层仅在微电极的尖端部分露出。 初始涂层可以是改性剂的吸收层，其中分散有改性剂的聚合物基质的均匀层，或其链中具有改性剂的聚合物层。 该改性剂对电极的表面提供了独特的性质，其可以是电活性，夹杂物，酸性/碱性，络合/螯合或电催化。 微电极通常仅用于浸入溶液中的尖端部分，并且可以通过去除污染的末端部分来更新微电极。
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6.发明授权Modified composite electrodes with renewable surface for electrochemical applications and method of making same 失效用于电化学应用的具有可再生表面的改性复合电极及其制备方法
公开(公告)号：US4933062A
公开(公告)日：1990-06-12
申请号：US320233
申请日：1989-03-07
申请人： Brenda R. Shaw , Kenneth E. Creasy
发明人： Brenda R. Shaw , Kenneth E. Creasy
摘要： Renewable modified composite electrodes for electrochemical application are provided by homogeneous structure of a conductive filler disposed in a polymeric matrix or binder containing a modifier in the polymer chain. The modifier provides distinctive characteristics of electroactivity, inclusion, acidic/basic, complexing/chelating or electrocatalysis to the surface of the electrode in a solution. After use, the electrode may be renewed by removing a surface portion and thereby exposing a fresh portion of the homogeneous structure.
摘要翻译： 用于电化学应用的可再生改性复合电极由设置在聚合物基体中的导电填料均匀结构或含有聚合物链中改性剂的粘合剂提供。 该修饰剂在溶液中提供电活性，包合，酸性/碱性，络合/螯合或电催化到电极表面的特征。 使用后，可以通过去除表面部分从而暴露均匀结构的新鲜部分来更新电极。
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公开(公告)号：US5734097A
公开(公告)日：1998-03-31
申请号：US598865
申请日：1996-02-09
IPC分类号： G01N1/10 , B01J7/02 , G01N1/00 , G01N1/20 , G01N1/22 , G01N30/02 , G01N30/04 , G01N30/06 , G01N33/00 , G01N33/28
CPC分类号： G01N30/06 , G01N33/0011 , G01N33/2847 , G01N1/2035 , G01N2001/2229 , G01N2030/025
摘要： An analyzer and method for detecting and measuring the water content in a liquid sample in which the liquid sample is fed from its source to a head space chamber. The flow of liquid to the chamber is then halted, the water molecules in the liquid sample allowed to pass into the gaseous phase and escape from the liquid sample. A water-free carrier gas is caused to flow to the chamber and over the liquid to carry the gaseous water molecules to a moisture detector while the flow of the liquid sample to the head space chamber is halted.
摘要翻译： 一种用于检测和测量液体样品中的水分含量的分析仪和方法，其中液体样品从其源极供应到顶部空间室。 然后液体流向室的流动停止，使液体样品中的水分子进入气相并从液体样品中逸出。 使无水载气流到腔室和液体上，以将气体水分子运送到水分检测器，同时使液体样品流到顶部空间腔室停止。
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公开(公告)号：US5693538A
公开(公告)日：1997-12-02
申请号：US521782
申请日：1995-08-31
IPC分类号： G01N1/10 , B01J7/02 , G01N1/00 , G01N1/20 , G01N1/22 , G01N30/02 , G01N30/04 , G01N30/06 , G01N33/00 , G01N33/28 , G01N33/18
CPC分类号： G01N33/2847 , G01N30/06 , G01N33/0011 , G01N1/2035 , G01N2001/2229 , G01N2030/025 , Y10T436/25875
摘要： A system and method for monitoring a volatile species in a liquid in which liquid is fed from its source to a head space chamber. The flow of liquid to the chamber is then halted, the volatile species allowed to escape into the gaseous phase above the liquid, and a carrier gas is caused to flow to the chamber and over the liquid to carry the gaseous phase of the species to a detector while the flow of the liquid to the head space chamber is halted. The liquid may be under pressure at the point in the source from which it is withdrawn into the system and returned to the source at a point also under pressure.
摘要翻译： 一种用于监测液体中的挥发性物质的系统和方法，其中液体从其源向顶部空间室供给。 然后液体流向腔室的流动停止，使挥发物质逸出到液体上方的气相中，并使载气流到腔室和液体上以将物质的气相携带到 检测器，同时液体到达顶部空间室的流动停止。 液体可能在源的位置处被压力，从该位置将其抽出到系统中并在也在压力下的位置返回到源。
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9.发明授权Method for detecting a vapor of an alkyl ester of phosphoric acid in ambient air 失效检测环境空气中磷酸烷基酯蒸气的方法
公开(公告)号：US5342786A
公开(公告)日：1994-08-30
申请号：US43708
申请日：1993-04-08
CPC分类号： G01N30/06 , G01N33/0047 , G01N2030/025 , G01N2030/642 , G01N2030/884 , Y10T436/16 , Y10T436/163333 , Y10T436/21 , Y10T436/216
摘要： A method for detecting the presence of a vapor of an alkyl ester of phosphoric acid, particularly tributylphosphate, in ambient air. A sample of ambient air is heated to convert any alkyl ester of phosphoric acid to an alkene. The heated sample of air is then passed to a sample loop. Carrier air periodically carries a fixed volume of sample from the sample loop through a chromatographic column to a photoionization detector which detects the presence and amount of the alkene in the sample.
摘要翻译： 在环境空气中检测磷酸烷基酯，特别是磷酸三丁酯的蒸气的存在的方法。 将环境空气的样品加热以将任何磷酸烷基酯转化为烯烃。 然后将加热的空气样品通入样品环路。 载体空气周期性地将来自样品环的固定体积的样品通过色谱柱运送到检测样品中烯烃的存在和量的光电离检测器。
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10.发明授权Modified composite electrodes with renewable surface for electrochemical applications and method of making same 失效用于电化学应用的具有可再生表面的改性复合电极及其制备方法
公开(公告)号：US4957593A
公开(公告)日：1990-09-18
申请号：US319971
申请日：1989-03-07
申请人： Brenda R. Shaw , Kenneth E. Creasy
发明人： Brenda R. Shaw , Kenneth E. Creasy
摘要： Renewable modified composite electrodes for electrochemical applications are provided by homogeneous structures of a conductive filler and a modifier dispersed within a polymer matrix or binder. The modifiers may provide characteristics of electroactivity, inclusion, adsorption or electrocatalysis to the surface of the electrode in a solution. After use, the electrode may be renewed by removing a surface portion and thereby exposing a fresh portion of the homogeneous structure.
摘要翻译： 用于电化学应用的可再生改性复合电极由分散在聚合物基质或粘合剂中的导电填料和改性剂的均匀结构提供。 改性剂可以在溶液中提供电活性，夹杂物，吸附或电催化作用于电极表面的特征。 使用后，可以通过去除表面部分从而暴露均匀结构的新鲜部分来更新电极。
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