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    Filter media cleaning system
    71.
    发明授权
    Filter media cleaning system 失效
    过滤介质清洗系统

    公开(公告)号：US5228467A

    公开(公告)日：1993-07-20

    申请号：US763577

    申请日：1991-09-23

    Applicant: Clyde H. Gilliam, Jr. ,  James A. Smith

    Inventor： Clyde H. Gilliam, Jr. ,  James A. Smith

    IPC: B01D25/164 ,  B01D33/04

    CPC classification number: B01D25/164 ,  B01D33/04 ,  B01D2201/085

    Abstract: A method and apparatus for cleaning filter media in dewatering apparatus in situ includes an applicator which sprays a mixture of water and a cleaning agent onto a filter media as the applicator and media undergo relative movement. The cleaning solution contains selected oxidizers and dispersants to break the polymer bond and remove polymeric residues from the media without the need for removing the media from the apparatus.

    Abstract translation: 一种用于在脱水设备中原位清洁过滤介质的方法和装置包括一个涂抹器，当敷料器和介质经历相对运动时，喷涂器将水和清洁剂的混合物喷洒到过滤介质上。 清洁溶液含有选择的氧化剂和分散剂以破坏聚合物键并从介质中除去聚合物残留物，而不需要从设备中除去介质。

    Procedure for cleaning filter used in production of hydrogen peroxide from anthraquinone
    72.
    发明授权
    Procedure for cleaning filter used in production of hydrogen peroxide from anthraquinone 失效
    过滤器用于从蒽醌生产过氧化氢的过程

    公开(公告)号：US5217629A

    公开(公告)日：1993-06-08

    申请号：US756844

    申请日：1991-09-10

    Applicant: Esko Makiniemi ,  Eeva-Liisa Mustonen ,  Arto Sikander

    Inventor： Esko Makiniemi ,  Eeva-Liisa Mustonen ,  Arto Sikander

    IPC: B01D29/33 ,  C01B15/023

    CPC classification number: C01B15/023 ,  B01D29/33 ,  B01D2201/0446 ,  B01D2201/085

    Abstract: The present invention relates to a procedure for cleaning a sinter used for filtering a metal catalyst suspension. As taught by the invention, the sinter is treated with an aqueous solution of hydrogen peroxide for displacing the metal catalyst left in the pores of the sinter with the aid of the gas produced by the decomposition of the hydrogen peroxide, caused by the metal catalyst, until gas formation ceases, indicating that no significant quantities of metal catalysts are left in the sinter. Such hydrogen peroxide decomposition is produced by the so-called anthraquinone process, in which an anthraquinone derivative is dissolved in an organic solvent then reduced with the aid of hydrogen gas in the presence of a catalyst to the corresponding anthraquinone derivative; the catalyst is then separated from such solution by filtering. Then, such corresponding anthraquinone derivative is oxidized with air or oxygen, whereby it reverses to the state preceding hydrogenation, i.e., to the original anthrquinone derivative, while at the same time producing hydrogen peroxide.

    Abstract translation: 本发明涉及清洗用于过滤金属催化剂悬浮液的烧结体的方法。 如本发明所教导的那样，烧结体用过氧化氢水溶液处理，借助于由金属催化剂引起的过氧化氢分解产生的气体来置换留在烧结矿孔中的金属催化剂， 直到气体形成停止，表明在烧结矿中没有大量的金属催化剂留下。 这样的过氧化氢分解是通过所谓的蒽醌法生产的，其中将蒽醌衍生物溶解在有机溶剂中，然后借助于氢气在催化剂存在下还原成相应的蒽醌衍生物; 然后通过过滤将催化剂与这种溶液分离。 然后，这样的相应的蒽醌衍生物用空气或氧气氧化，由此反转到氢化前的状态，即与原来的蒽醌衍生物反应，同时产生过氧化氢。

    Systems and methods for clarifying liquids
    73.
    发明授权
    Systems and methods for clarifying liquids 失效
    澄清液体的系统和方法

    公开(公告)号：US5167840A

    公开(公告)日：1992-12-01

    申请号：US803999

    申请日：1991-12-09

    Applicant: Richard P. Jaccarino

    Inventor： Richard P. Jaccarino

    IPC: B01D24/18 ,  B01D37/03

    CPC classification number: B01D37/03 ,  B01D24/186 ,  B01D2201/085

    Abstract: Systems and methods for clarifying liquids, especially water, of the two stage upflow/downflow type that operate in a filtering mode, a first stage flush mode and a bistage backwash mode are improved by the use in the first, upflow stage of particulate filter media consisting of solid particles with a specific gravity of between 3.5 and 4.4 and a size between 1.5 and 4 mm. and, preferably, in the second, downflow stage particulate filter media consisting of solid particles having a specific gravity of between 1.5 and 4.0 and sizes of between 0.3 and 1.5 mm and providing for upward passage of gas bubbles through the first stage media particles without appreciable expansion thereof during at least part of each flush and backwash mode of operation.

    Abstract translation: 在过滤模式，第一阶段冲洗模式和双稳态反冲洗模式下工作的两级上流/下流式液体特别是液体，特别是水的系统和方法通过在微粒过滤介质的第一个上流阶段 由比重在3.5至4.4之间的固体颗粒和1.5至4mm的尺寸组成。 并且优选地在第二个下流阶段中，由比重介于1.5和4.0之间的固体颗粒和大小在0.3和1.5mm之间的颗粒过滤介质组成，并且使气泡向上通过第一阶段的介质颗粒，而没有明显的 在每个冲洗和反冲洗操作模式的至少一部分期间其膨胀。

    Process for separating solvents used in the purification of products
    74.
    发明授权
    Process for separating solvents used in the purification of products 失效
    用于分离产品净化中使用的溶剂的方法

    公开(公告)号：US4985152A

    公开(公告)日：1991-01-15

    申请号：US380086

    申请日：1989-07-14

    Applicant: Josef Hilbig ,  Guenther Welt ,  Manfred Ziegelmayer

    Inventor： Josef Hilbig ,  Guenther Welt ,  Manfred Ziegelmayer

    IPC: B01D11/02 ,  B01D11/04 ,  B01D33/04 ,  B01D36/00 ,  C08B11/20

    CPC classification number: C08B11/20 ,  B01D11/023 ,  B01D33/04 ,  B01D2201/085

    Abstract: The present invention relates to a process and a device for selectively separating the solvents employed in the preparation and purification of products. In this connection the different solvents are removed from the product to be treated by means of mechanical separation and subsequent admission of steam, and are collected separately. As a result of this, mixing of solvents from the preparation and from the purification is avoided, so that the working up of a solvent mixture is superfluous. The proces and the device are preferably used in the process for producing starch ethers and cellulose ethers.

    Abstract translation: 本发明涉及用于选择性分离用于制备和纯化产物的溶剂的方法和装置。 在这方面，通过机械分离和随后的蒸汽入口将不同的溶剂从待处理的产品中除去，并分开收集。 因此，避免了制剂和纯化中的溶剂的混合，使得溶剂混合物的加工是多余的。 方法和装置优选用于生产淀粉醚和纤维素醚的方法中。

    Method of cleaning filter discs in a suction dryer using ultrasonic vibration
    76.
    发明授权
    Method of cleaning filter discs in a suction dryer using ultrasonic vibration 失效
    使用超声波振动清洗吸尘器中的过滤盘的方法

    公开(公告)号：US4946602A

    公开(公告)日：1990-08-07

    申请号：US278536

    申请日：1988-11-21

    Applicant: Bjarne Ekberg ,  Goran Norrgard

    Inventor： Bjarne Ekberg ,  Goran Norrgard

    IPC: B01D24/46 ,  B01D33/21 ,  B01D33/44 ,  B01D33/58

    CPC classification number: B01D33/21 ,  B01D2201/085 ,  B01D2201/282

    Abstract: Method in a suction dryer (10), which comprises a basin (12) for a suspension to be suction-dried, in connection with which basin one or several filter-plate discs (14a) revolve, onto whose faces a filtrate cake is gathered and dewatered by the effect of a suction flow passing through the filter plates (14a), the said filtrate cake/cakes being scraped or otherwise detached from the faces of the filter plates (14a). For the purpose of cleaning the porous structure and faces of the filter plates (14a), an ultrasonic detector or detectors (30) are provided in connection with the basin (12) for the suspension to be filtered, to which detectors an electric power of ultrasonic frequency is fed from an ultrasonic generator (32). For the time of the cleaning intensified by ultrasound, the suspension basin (12) is filled with a connecting and cleaning liquid, e.g. water. The filter-plate discs (14) are rotated in the connecting and cleaning liquid by means of the same equipment (14, 13, 18) by means of which the rotating of the filter-plate discs (14) takes place in connection with the suction drying.

    Abstract translation: PCT No.PCT / FI88 / 00032 Sec。 371日期：1988年11月21日 102（e）1988年11月21日日期PCT提交1988年2月29日PCT公布。 出版物WO88 / 07887 日本专利日期：1988年10月20日。在吸入式干燥器（10）中的方法，其包括用于待吸干燥的悬浮液的盆（12），其与一个或几个过滤板盘（14a）旋转的盆相连， 其滤液滤饼通过穿过滤板（14a）的吸力的作用聚集并脱水，所述滤饼/蛋糕被刮去或以其它方式从过滤板（14a）的表面分离。 为了清洁多孔结构和过滤板（14a）的表面，提供超声波检测器或检测器（30），与用于待过滤的悬架的盆（12）连接，检测器的电功率 超声频率从超声波发生器（32）馈送。 对于通过超声波加强的清洁时间，悬浮液盆（12）填充有连接和清洁液体，例如， 水。 过滤盘（14）通过相同的设备（14,13,18）在连接和清洁液体中旋转，通过这些设备，过滤板盘（14）的旋转与 吸干。

    Separation of liquids and solids
    78.
    发明授权
    Separation of liquids and solids 失效
    分离液体和固体

    公开(公告)号：US3974074A

    公开(公告)日：1976-08-10

    申请号：US564642

    申请日：1975-04-03

    Applicant: John Anthony Purdey

    Inventor： John Anthony Purdey

    IPC: B30B9/22 ,  B01D29/00 ,  B01D29/15 ,  B01D23/24

    CPC classification number: B01D29/15 ,  B01D29/66 ,  B01D29/822 ,  B01D2201/085

    Abstract: A method of removing solid particles, especially magnesium compounds, from the pores of the filter element of a tube pressure filter, by (A) washing the filter element whilst supported in the tube pressure filter with an aqueous cleaning solution containing a compound which reacts with the solid particles in the pores of the filter element to form a material which is at least partially soluble in said aqueous cleaning solution, and thereafter (B) washing the filter element whilst supported in the tube pressure filter with water or an aqueous solution of a soap or a detergent.

    Abstract translation: （A）通过（A）洗涤过滤元件同时用含有与下列化合物反应的化合物的水性清洗溶液洗涤过滤器元件，从管式压力过滤器的过滤器元件的孔中除去固体颗粒，特别是镁化合物的方法 过滤元件的孔中的固体颗粒，以形成至少部分可溶于所述水性清洁溶液的材料，然后（B）在用水或水溶液的管式过滤器中支撑的同时洗涤过滤元件 肥皂或洗涤剂。

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