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33 条记录 (耗时 0.024 秒)

    Process for purification of anhydrous hydrogen chloride gas
    22.
    发明授权
    Process for purification of anhydrous hydrogen chloride gas 有权

    公开(公告)号：US06719957B2

    公开(公告)日：2004-04-13

    申请号：US10124795

    申请日：2002-04-17

    申请人： Bill L. Brady, Jr. ,  Guenther Weymans ,  Berthold Keggenhoff ,  Friedhelm Steffens

    发明人： Bill L. Brady, Jr. ,  Guenther Weymans ,  Berthold Keggenhoff ,  Friedhelm Steffens

    IPC分类号： C01B707

    CPC分类号： B01D53/002 ,  C01B7/0706

    摘要： High boiling contaminants such as chloro-aromatic compounds are removed from a gas by compressing the gas containing the contaminant, cooling the compressed gas to reduce the temperature of the gas to at least 20° C. above the outlet temperature of a second cooling stage but above the freezing point of the highest melting compound in the first cooling stage, further cooling the gas in a second cooling stage to at least −20° C., returning cooled gas from the second cooling stage to the first cooling stage, and recovering condensate streams which contain the contaminant compound from the first and second cooling stages. An apparatus suitable for carrying out this process is also disclosed. The process of the present invention is particularly useful for removing chloro-aromatic compounds from anhydrous hydrogen chloride gas.

    Method of liquid-liquid extraction using material exchange columns
    27.
    发明授权
    Method of liquid-liquid extraction using material exchange columns 失效
    使用材料交换柱进行液 - 液萃取的方法

    公开(公告)号：US4732685A

    公开(公告)日：1988-03-22

    申请号：US914223

    申请日：1986-10-02

    申请人： Hans-Walter Brandt ,  Friedhelm Steffens ,  Johannes-Peter Schafer ,  Jurgen Schroter

    发明人： Hans-Walter Brandt ,  Friedhelm Steffens ,  Johannes-Peter Schafer ,  Jurgen Schroter

    IPC分类号： B01D11/04 ,  B01J19/32

    CPC分类号： B01J19/325 ,  B01D11/043

    摘要： With the extraction method, a material exchange column with an ordered packing 2a or 2b on the basis of a plurality of layers 3 stacked parallel to the column axis and making point contact with one another is used. The packing 2a, 2b is perfused by a continuous and a dispersed phase in a counter current. The packing has a very large specific surface area of at least 300 m.sup.2 /m.sup.3 of packing volume. At the periphery of the packing 2a, 2b, the two phase streams are re-circulated into the packing at regular intervals through a rim seal composed of an elastic material not wettable by the dispersed phase. The rim seal is placed round the packing in the form of an elastic tube or pipe and seals the intermediate space between the internal column wall and the packing. A further improvement in the separating capacity can be achieved if pulsating operation is adopted. The method is characterized, in particular, in that an approximately constant high separating capacity is achieved with a high throughput per unit area over a relatively large loading tolerance of the column.

    摘要翻译： 使用提取方法，使用具有有序填料2a或2b的材料交换柱，其基于平行于柱轴线并且彼此点接触的多个层3。 包装2a，2b由逆流中的连续分散相灌注。 填料具有非常大的比表面积至少为300m 2 / m 3的包装体积。 在包装2a，2b的周围，两相流通过由不能被分散相润湿的弹性材料构成的边缘密封圈以规则的间隔再次循环到包装中。 轮辋密封件以弹性管或管的形式放置在填料周围，并密封内部柱壁和填料之间的中间空间。 如果采用脉动操作，则可以进一步提高分离能力。 该方法的特征在于，在柱的相对大的负载公差下，在每单位面积的高通量下实现大致恒定的高分离能力。