Filtration of cellulosic solutions
    12.
    发明授权
    Filtration of cellulosic solutions 失效
    纤维素溶液的过滤

    公开(公告)号:US4018681A

    公开(公告)日:1977-04-19

    申请号:US631370

    申请日:1975-11-12

    Abstract: Cellulosic solutions are filtered by a process enabling virtual complete recovery and recycling of the undissolved cellulosic components of the solutions. The process comprises filtering the solution through a bed of particulate material until the build-up of undissolved material impedes the further flow of solution through the bed, mixing the undissolved material and particulate bed with a solvent to partially dissolve the undissolved material, which is highly concentrated relative to its original concentration before filtration, adding a solubilizing reactant to said concentrated partial solution of undissolved material to complete the solution of the cellulosic residues, and separating and recycling the resulting solution.

    Abstract translation: 纤维素溶液通过能够使溶液的未溶解的纤维素组分的虚拟完全回收和再循环的过程进行过滤。 该方法包括通过颗粒材料床过滤溶液,直到未溶解的材料的积聚阻碍溶液通过床的进一步流动,将溶解的材料和颗粒床与溶剂混合以部分溶解未溶解的材料,这是非常高的 在过滤之前相对于其原始浓度浓缩,向所述未溶解材料的浓缩部分溶液中加入增溶反应物以完成纤维素残余物的溶液,并分离和再循环所得溶液。

    Process for cleaning filters
    14.
    发明授权
    Process for cleaning filters 失效
    清洁过滤器的过程

    公开(公告)号:US08062430B2

    公开(公告)日:2011-11-22

    申请号:US10519639

    申请日:2003-06-23

    Abstract: Filters used in the beverage industry fouled by polyphenol-protein complexes and carbohydrate polymers can be cleaned by treating the filters either with the following methods: Solubilization of at least part of the carbohydrate polymers followed by a treatment of the resulting polyphenol protein complex with an oxidative chemical. Treatment of the fouled filters through a back-wash method using an oxidative chemical. In both cases it is not necessary to rinse the membranes after cleaning with a reductive chemical.

    Abstract translation: 用多酚蛋白复合物和碳水化合物聚合物污染的饮料行业中使用的过滤器可以通过以下方法处理过滤器进行清洁:至少部分碳水化合物聚合物的溶解,然后用氧化剂处理所得多酚蛋白质复合物 化学品。 通过使用氧化性化学品的反洗方法处理污垢过滤器。 在这两种情况下,用还原性化学品清洗后不需要冲洗膜。

    Industrial Silicon Carbide Filtration Method
    15.
    发明申请
    Industrial Silicon Carbide Filtration Method 审中-公开
    工业碳化硅过滤法

    公开(公告)号:US20090223898A1

    公开(公告)日:2009-09-10

    申请号:US12065147

    申请日:2006-08-29

    Inventor: Yousef Haj-Ahmad

    CPC classification number: B01D24/46 B01D39/06 B01D2201/085

    Abstract: A method for use in industrial processes is disclosed for removing substances from a liquid, comprising passing said liquid through a filter bed comprised of silicon carbide particles of either a uniform particle size or decreasing particle sizes. The filter bed can be washed and regenerated by directing a regenerate liquid or liquids through the filter bed. Furthermore, a method for the removal and recovery of products and by-products from a liquid is disclosed, comprising passing said liquid through a filter bed comprised of silicon carbide particles of either a uniform particle size or decreasing particles sizes. A regenerate liquid or liquids can be passed through the filter bed for the purpose of removing and recovering the products or by-products, and simultaneously regenerating the filter bed.

    Abstract translation: 公开了用于从液体中去除物质的工业方法中的一种方法,包括使所述液体通过由均匀粒度或减小粒度的碳化硅颗粒组成的过滤床。 过滤床可以通过将再生液体或液体引导通过过滤床来洗涤和再生。 此外,公开了一种从液体中除去和回收产物和副产物的方法,包括使所述液体通过由均匀粒度或减小的粒径的碳化硅颗粒组成的过滤床。 再生液体或液体可以通过过滤床,用于除去和回收产物或副产物,同时再生过滤床。

    Method for flushing particle-bearing filter beds, to sterilize and decontaminate the same
    16.
    发明申请
    Method for flushing particle-bearing filter beds, to sterilize and decontaminate the same 有权
    冲洗含颗粒过滤床的方法,对其进行消毒和除污

    公开(公告)号:US20040105781A1

    公开(公告)日:2004-06-03

    申请号:US10220341

    申请日:2003-05-09

    Inventor: Walter Polak

    Abstract: The invention relates to a method for flushing particle-bearing filter beds which are located in circuit or linear water-treatment plants, to sterilise and decontaminate said beds. The method is characterised in that an aqueous solution containing chlorine oxide and/or halogen and/or peroxide is left to act on the deposits of the particle-type filter bed and said bed is subsequently flushed with water or an aqueous medium, to remove the reaction products caused by the aforementioned process and any residual chlorine oxides or halogens or peroxides.

    Abstract translation: 本发明涉及一种用于冲洗位于回路或线性水处理设备中的含尘过滤床的方法,用于对所述床进行消毒和去污。 该方法的特征在于使含有氧化氯和/或卤素和/或过氧化物的水溶液作用于颗粒型过滤床的沉积物,然后用水或水介质冲洗所述床,以除去 由上述方法引起的反应产物和任何残留的氯氧化物或卤素或过氧化物。

    Method of cleaning a sintered powdered metal filter
    17.
    发明授权
    Method of cleaning a sintered powdered metal filter 失效
    烧结粉末状金属过滤器的清洗方法

    公开(公告)号:US5487836A

    公开(公告)日:1996-01-30

    申请号:US371495

    申请日:1995-01-11

    CPC classification number: B01D29/33 B01D2201/0438 B01D2201/085

    Abstract: A method of cleaning polymer residue from a polymer melt filter formed of a sintered powdered metal includes pyrolyzing the polymer residue-contaminated filter within a heated chamber at a temperature within the range from about 400.degree. to about 600.degree. C. and for a time sufficient to pyrolyze substantially all of the polymer residue. Simultaneously with such treatment, the heated chamber is flushed with steam to prevent combustion of the polymer residue. The pyrolyzed filter is then treated with a solvent and back-flushed with a pressurized fluid stream by passing the fluid steam through the filter in a direction opposite to the polymer melt flow therethrough.

    Abstract translation: 从由烧结粉末金属形成的聚合物熔体过滤器中清洗聚合物残余物的方法包括在约400℃至约600℃的温度范围内将加热室内的聚合物残余物污染的过滤器热解并足够长时间 以基本上热解所有聚合物残余物。 与这种处理同时,加热的室用蒸汽冲洗以防止聚合物残余物的燃烧。 然后将热解的过滤器用溶剂处理,并通过使流体蒸汽通过与通过其中的聚合物熔体流动相反的方向通过过滤器,用加压流体流反冲洗。

    Regenerable sorbent system
    18.
    发明授权
    Regenerable sorbent system 失效
    可再生吸附剂系统

    公开(公告)号:US5281344A

    公开(公告)日:1994-01-25

    申请号:US824403

    申请日:1992-01-23

    CPC classification number: B01D29/114 B01D2201/085 B01D35/18

    Abstract: A process and apparatus for treating contaminated water involving passing water containing contaminants as a stream through a filter to remove the contaminants and form a purified water stream, directing the purified water stream to an effluent discharge outlet and accumulating a portion of the purified water in a reservoir under pressure, preferably through action of a trapped air pocket in the reservoir, and regenerating the filter by using the purified water in the reservoir to back-flush the filter.

    Abstract translation: 一种用于处理受污染水的方法和装置,包括使含有污染物的水通过过滤器,以除去污染物并形成净化水流,将净化水流引导至流出物出口并将一部分净化水积聚在 储存器,优选地通过储存器中的被捕获的空气袋的作用,以及通过使用储存器中的净化水来再生过滤器以反冲洗过滤器。

    Process for regenerating clogged filters
    19.
    发明授权
    Process for regenerating clogged filters 失效
    再生过滤器的过程

    公开(公告)号:US5240613A

    公开(公告)日:1993-08-31

    申请号:US926816

    申请日:1992-08-07

    CPC classification number: B01D41/04 B01D2201/085

    Abstract: When preparing carbon artefacts from heavy oils of petroleum or coal origin, removal of undesirable components or recovery of desirable components from raw materials or intermediates is usually required so as to improve the quality of the final products. Such removal or recovery operation is conventionally done by filtration. In the past, regeneration of filters clogged with solid carbonaceous materials inevitably formed by the filtration operations is difficult and troublesome procedures. Herein disclosed is a simple and effective process for regenerating filters clogged with solid carboneceous materials, characterized by treating the filter medium in an aqueous solution of hydrogen peroxide with heating and then optionally conducting ultrasonic washing in water or a solvent. By this simple process, clogged filters can be regenerated completely to show the same filtration performance as new filters.

    Automatically controlled splash plate
    20.
    发明授权
    Automatically controlled splash plate 失效
    自动控制飞溅板

    公开(公告)号:US5084163A

    公开(公告)日:1992-01-28

    申请号:US612291

    申请日:1990-11-13

    Abstract: An improved apparatus and process for the operation of a down-flow granular medium bed filter is disclosed. A splash plate for dissipating the force of influent liquid is rotatably connected to support means, allowing the plate to rotate from a position parallel to the bed surface to a position perpendicular to the bed surface upon the liquid above the bed rising to a selected first level. The splash plate is maintained in the perpendicular position for the remainder of the filtration cycle, the backwash cycle and any chemical cleaning cycle, allowing unobstructed operation of the filter bed. The splash plate returns to the original position at the start of another filtration cycle.

    Abstract translation: 公开了用于操作下流式颗粒状中床过滤器的改进的装置和方法。 用于消散流入液体的力的飞溅板可旋转地连接到支撑装置,允许板从与床表面平行的位置旋转到垂直于床表面的位置,床上方的液体升高到选定的第一水平 。 在过滤循环的剩余时间,反冲洗循环和任何化学清洗循环中,防溅板保持在垂直位置,允许过滤床无障碍地操作。 在另一个过滤循环开始时,飞溅板返回到原始位置。

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