公开(公告)号：US5140169A

公开(公告)日：1992-08-18

申请号：US693115

申请日：1991-04-25

申请人： F. Monte Evens ,  Craig T. Barker ,  Charles R. Ray

发明人： F. Monte Evens ,  Craig T. Barker ,  Charles R. Ray

IPC分类号： G01N21/05 ,  G01N21/09 ,  G01N30/74

CPC分类号： G01N21/05 ,  G01N2030/746 ,  G01N21/09

摘要： A flow cell for use in highly corrosive environments is constructed from an extended metal body containing a smooth longitudinal circular center bore of uniform cross-section. The metal body contains a circular opening at each end extending perpendicularly into the center bore, adapted to receive a sample into the center bore and discharge the sample from the center bore. A circular connector having a larger diameter than the center bore is contained in each of the opposing ends of the center bore, abutting the solid body to form a right angle shoulder between the inside of the connector and the solid body. Opposing fiber optic probes each with an external sapphire window which is sealed into a metal tube contained in each probe with melted glass and an optional plastic seal over the melted glass are contained in the circular connectors, each said window extending into the center bore a sufficient distance so that the face of said window is in vertical alignment with the nearest internal surface of the circular opening into the center bore. An o-ring gasket is positioned between the right angle shoulder and metal tube end to form a tight cover over the glass seal (and plastic seal) when the probes are assembled in the flow cell, thereby protecting the glass seal (and plastic seal) from the corrosive environment.

摘要翻译： 用于高腐蚀性环境的流动池由延伸的金属体构成，其包含具有均匀横截面的平滑的纵向圆形中心孔。 金属体在每个端部处包含垂直于中心孔延伸的圆形开口，适于将样品接纳到中心孔中并从中心孔排出样品。 具有比中心孔大的直径的圆形连接器被容纳在中心孔的相对端中的每一个中，邻接固体以在连接器的内部和固体之间形成直角肩部。 每个具有外部蓝宝石窗口的相对的光纤探针被密封到每个探针中包含的熔融玻璃的金属管和在熔融的玻璃上的可选的塑料密封件包含在圆形连接器中，每个所述窗口延伸到中心孔中足够 使得所述窗口的表面与通向中心孔的圆形开口的最近内表面垂直对准。 当探针组装在流动池中时，O形环垫片位于直角肩部和金属管端之间，以在玻璃密封件（和塑料密封件）上形成紧密的盖子，从而保护玻璃密封件（和塑料密封件） 从腐蚀环境。

公开(公告)号：US5078493A

公开(公告)日：1992-01-07

申请号：US546592

申请日：1990-06-29

申请人： F. Monte Evens ,  Craig T. Barker ,  Charles R. Ray

发明人： F. Monte Evens ,  Craig T. Barker ,  Charles R. Ray

IPC分类号： G01N21/05 ,  G01N21/09 ,  G01N30/74

CPC分类号： G01N21/05 ,  G01N21/09

摘要： A flow cell for use in highly corrosive environments is constructed from a cross union and contains opposing probes each with an external sapphire window which is sealed into a metal tube contained in each probe with melted glass and an optional plastic seal over the melted glass. Each portion of the cross union containing a probe has a right angle shoulder which abuts the end of the tube containing the sapphire window. An O-ring gasket is positioned between the right angle shoulder and tube end to form a tight cover over the glass seal when the probes are assembled in the flow cell, thereby protecting the glass seal and plastic seal from the corrosive environment.

摘要翻译： 用于高腐蚀性环境的流通池由交叉联合体构成，并且包含相对的探头，每个探针均具有外部蓝宝石窗口，该外部蓝宝石窗口被密封在每个探头中的熔融玻璃中的金属管中，并且在熔融的玻璃上可选择的塑料密封。 包含探针的交叉联合体的每个部分具有邻接包含蓝宝石窗口的管的端部的直角肩部。 当探针组装在流动池中时，O形环垫片位于直角肩部和管端之间，以在玻璃密封件上形成紧密的盖子，从而保护玻璃密封件和塑料密封件免受腐蚀性环境的影响。

公开(公告)号：US5100639A

公开(公告)日：1992-03-31

申请号：US659440

申请日：1991-02-22

申请人： Francisco J. Freire ,  Jon L. Howell ,  Kaye L. Motz ,  Craig T. Barker ,  William C. Ziegenhain ,  Eileen G. Edwards

发明人： Francisco J. Freire ,  Jon L. Howell ,  Kaye L. Motz ,  Craig T. Barker ,  William C. Ziegenhain ,  Eileen G. Edwards

IPC分类号： C01B7/19

CPC分类号： C01B7/195 ,  C01B7/196

摘要： A process for manufacturing high purity anhydrous hydrogen fluoride (HF) having low levels of oxidizable impurities by electrolytically oxidizing the impurities. Specifically, trivalent arsenic impurity in the anhydrous hydrogen fluoride is oxidized to a non-volatile pentavalent arsenic compound. The resultant mixture is distilled to recover high purity anhydrous hydrogen fluoride with low levels of arsenic impurity.

摘要翻译： 一种通过电解氧化杂质制造具有低水平可氧化杂质的高纯度无水氟化氢（HF）的方法。 具体地说，将无水氟化氢中的三价砷杂质氧化为非挥发性五价砷化合物。 将所得混合物蒸馏以回收具有低水平砷杂质的高纯度无水氟化氢。