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    PROCESS FOR THE PURIFICATION OF PHOSPHORIC ACID
    4.
    发明申请
    PROCESS FOR THE PURIFICATION OF PHOSPHORIC ACID 审中-公开
    磷酸的纯化方法

    公开(公告)号：US20130287666A1

    公开(公告)日：2013-10-31

    申请号：US13976282

    申请日：2012-01-03

    申请人： Dirk Verdoes ,  Johannes Van Der Meer ,  Michiel Nienoord ,  Jean-Marie Collard ,  Michael Sell

    发明人： Dirk Verdoes ,  Johannes Van Der Meer ,  Michiel Nienoord ,  Jean-Marie Collard ,  Michael Sell

    IPC分类号： C01B25/234

    CPC分类号： C01B25/234 ,  B01D9/0045

    摘要： Process for purifying a stream comprising phosphoric acid and a first amount of impurities, comprising: forming a slurry of phosphoric acid crystals in a water mother liquor; separating the phosphoric acid crystals from the mother liquor by filtration in a wash column comprising a filtering element, while a packed bed of crystals coming from the slurry forms near such filtering element; washing the separated phosphoric acid crystals in the wash column by bringing a washing liquid in countercurrent to the crystals in the bed up to a wash front, where the washing liquid recrystallizes, the bed being subjected to a movement in the direction of such wash front; forming a purified stream comprising phosphoric acid and a reduced amount of impurities by melting at least part of the washed crystals; and extracting the purified stream from the wash column through a product outlet of the wash column; wherein water is introduced into the wash column, between the wash front and the product outlet and/or in a melting circuit producing at least part of the washing liquid, and wherein the introduction of the said water decreases the equilibrium temperature of the contents of the melting circuit.

    摘要翻译： 一种净化含有磷酸和第一量杂质的物流的方法，包括：在水母液中形成磷酸晶体的浆料; 在包含过滤元件的洗涤塔中通过过滤从母液中分离磷酸晶体，而来自浆料的晶体填充床形成在该过滤元件附近; 通过使洗涤液与床中的晶体逆流洗涤前洗涤液洗涤液中的分离的磷酸晶体，洗涤液重结晶，床沿这种洗涤前方向移动; 通过熔化至少部分洗涤的晶体形成包含磷酸和减少量的杂质的纯化物流; 并通过洗涤塔的产物出口从洗涤塔提取纯化物流; 其中将水引入洗涤塔中，洗涤前部和​​产品出口之间和/或在产生至少部分洗涤液的熔解回路中，并且其中所述水的引入降低了所述洗涤液的内容物的平衡温度 熔化电路。

    Process for the purification of aqueous peroxygen solutions, solutions obtainable thereby and their use
    5.
    发明申请
    Process for the purification of aqueous peroxygen solutions, solutions obtainable thereby and their use 有权
    纯化过氧水溶液的方法，可得到的溶液及其用途

    公开(公告)号：US20070095755A1

    公开(公告)日：2007-05-03

    申请号：US10574289

    申请日：2004-10-01

    申请人： Robert Owen ,  Jurgen Bosse ,  Michael Sell

    发明人： Robert Owen ,  Jurgen Bosse ,  Michael Sell

    IPC分类号： C02F1/44

    CPC分类号： B01D61/025 ,  C01B15/013 ,  C01B15/0135 ,  C11D3/3947

    摘要： Process for the purification of aqueous peroxygen solutions comprising the treatment of an aqueous peroxygen solution with (a) at least one membrane purification step, (b) optionally at least one ion exchange purification step, (c) optionally at least one dilution step, and (d) at least one other purification step, all of which can be conducted in any sequence. Aqueous peroxygen solutions having a TOC level of less than 1 mg/kg can be obtained by this process. They can be used in the manufacture of semiconductors.

    摘要翻译： 用于纯化含水过氧化物溶液的方法，其包括用（a）至少一个膜纯化步骤，（b）任选的至少一个离子交换纯化步骤，（c）任选的至少一个稀释步骤和 （d）至少一个其它纯化步骤，其全部可以以任何顺序进行。 通过该方法可以获得TOC水平小于1mg / kg的过氧水溶液。 它们可用于制造半导体。

    Apparatus and method for separating solid particles from a slurry
    7.
    发明授权
    Apparatus and method for separating solid particles from a slurry 有权

    公开(公告)号：US10406452B2

    公开(公告)日：2019-09-10

    申请号：US13978320

    申请日：2012-01-03

    申请人： Dirk Verdoes ,  Johannes van der Meer ,  Michiel Nienoord ,  Michael Sell ,  Jean-Marie Collard

    发明人： Dirk Verdoes ,  Johannes van der Meer ,  Michiel Nienoord ,  Michael Sell ,  Jean-Marie Collard

    IPC分类号： B01D9/00

    摘要： The invention is directed to an improvement in operation of wash columns, and more in particular to an apparatus for separating solid particles from a slurry and to a process for separating solid particles from a mother liquor slurry. The apparatus of the invention comprises a wash column (1), which comprises a melting circuit (8,10,11,21), wherein means (22,23) are present to introduce a compound or composition to said wash column between a wash front (6b) formed in said wash column in operation and a product outlet and/or in the melting circuit. The process of the invention comprises separating the liquid from the solid particles by filtration with the aid of at least one filtering element (4), while a packed bed of solid particles coming from the mother liquid slurry forms near said filtering element (4), and wherein a wash front (6b) forms which is obtained by bringing a washing liquid in counter current to the solid particles in the bed, the bed being subjected to a movement in the direction of said wash front (6b), while a product stream comprising the material of said solid particles is obtained by continuously discharging a portion of said washing liquid, wherein a portion of said bed is continuously disintegrated, characterized in that a compound or composition is introduced into said wash column (1) between the wash front (6b) and a product outlet and/or in a melting circuit (8,10,11,21), and wherein the introduction of the said compound or composition decreases the equilibrium temperature of the contents of the melting circuit (8,10,11,21), further characterized by the feature that the introduced compound or composition is completely miscible with the product suspension and/or molten product being present in the said melting circuit (8,10,11,21).

    Catalytic fluidized bed process for treating aqueous liquids
    8.
    发明授权
    Catalytic fluidized bed process for treating aqueous liquids 失效
    用于处理含水液体的催化流化床工艺

    公开(公告)号：US5662809A

    公开(公告)日：1997-09-02

    申请号：US295908

    申请日：1994-09-12

    申请人： Michael Bischoff ,  Dirk Bonse ,  Michael Sell

    发明人： Michael Bischoff ,  Dirk Bonse ,  Michael Sell

    IPC分类号： C02F1/28 ,  B01J8/20 ,  B01J23/42 ,  B01J23/89 ,  C02F1/58 ,  C02F1/70 ,  C02F1/72

    CPC分类号： C02F1/70 ,  C02F1/725 ,  Y10S210/903

    摘要： In a process for the catalytic treatment of aqueous liquids containing germs, for example, for the catalytic removal of oxygen, nitrite or nitrate in drinking, culinary or waste water, the germ contamination of a catalysts which are used can be prevented when the process is carried out in the fluidized bed.

    摘要翻译： PCT No.PCT / EP93 / 00524 Sec。 371日期1994年9月12日 102（e）日期1994年9月12日PCT 1993年3月8日PCT公布。 公开号WO93 / 17973 日期1993年9月16日在用于催化处理含有细菌的水性液体的方法中，例如，为了在饮用，烹饪或废水中催化除去氧，亚硝酸盐或硝酸盐，使用的催化剂的胚芽污染可以是 当在流化床中进行该过程时被防止。

    Process for the purification of aqueous peroxygen solutions, solutions obtainable thereby and their use
    10.
    发明授权
    Process for the purification of aqueous peroxygen solutions, solutions obtainable thereby and their use 有权
    纯化过氧水溶液的方法，可得到的溶液及其用途

    公开(公告)号：US07473412B2

    公开(公告)日：2009-01-06

    申请号：US10574289

    申请日：2004-10-01

    申请人： Robert Owen ,  Juergen Bosse ,  Michael Sell

    发明人： Robert Owen ,  Juergen Bosse ,  Michael Sell

    IPC分类号： C01B15/013

    CPC分类号： B01D61/025 ,  C01B15/013 ,  C01B15/0135 ,  C11D3/3947

    摘要： Process for the purification of aqueous peroxygen solutions comprising the treatment of an aqueous peroxygen solution with (a) at least one membrane purification step, (b) optionally at least one ion exchange purification step, (c) optionally at least one dilution step, and (d) at least one other purification step, all of which can be conducted in any sequence. Aqueous peroxygen solutions having a TOC level of less than 1 mg/kg can be obtained by this process. They can be used in the manufacture of semiconductors.

    摘要翻译： 用于纯化含水过氧化物溶液的方法，其包括用（a）至少一个膜纯化步骤，（b）任选的至少一个离子交换纯化步骤，（c）任选的至少一个稀释步骤和 （d）至少一个其它纯化步骤，其全部可以以任何顺序进行。 通过该方法可以获得TOC水平小于1mg / kg的过氧水溶液。 它们可用于制造半导体。