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    • 2. 发明申请
    • MEMBRANE FILTER WITH ELECTRICAL AND/OR ACOUSTIC ENHANCEMENT
    • 具有电气和/或声学增强功能的膜过滤器
    • WO1998003245A1
    • 1998-01-29
    • PCT/GB1997001926
    • 1997-07-16
    • ATKINS FULFORD LTD.QUIGLEY, Michael, Bernard, CouplandWAKEMAN, Richard, John
    • ATKINS FULFORD LTD.
    • B01D35/06
    • B01D61/425B01D57/02B01D63/16B01D65/08B01D2321/2075B01D2321/22C02F1/36C02F1/44C02F1/469C02F2301/022
    • This invention relates to tubular and flat sheet membrane filters, particularly those filters whose ability to separate particulate, molecular or ionic contaminants from suspensions is enhanced by the addition of electric fields to the filter. When a membrane filter is in use, contaminants from the feed liquid accumulate at the membrane surface to form a polarised layer which inhibits flow through the membrane. Contaminants in a liquid become charged and when subjected to an electric field will migrate toward one or other of the electrodes. If the electrodes are located either side of a permeable membrane or barrier, the contaminant can be caused to migrate by electrophoresis away from the membrane or barrier. The system can be made more effective by using a combination of ultrasonic fields and controlled hydrodynamic fields with the electric field. The ultrasonic and the hydrodynamic fields will improve the separation of the solids from the water and the electric field will cause the particles to migrate away from the membrane.
    • 本发明涉及管状和平板膜过滤器,特别是那些通过向过滤器添加电场来增强从悬浮液中分离颗粒,分子或离子污染物的能力的过滤器。 当使用膜过滤器时,来自进料液体的污染物积聚在膜表面以形成抑制流过膜的偏振层。 液体中的污染物变得充电,并且当经受电场时将向一个或另一个电极迁移。 如果电极位于可渗透膜或屏障的两侧,则可以通过电离使污染物从膜或屏障迁移。 通过使用超声场和受控流体动力场与电场的组合,可以使系统更有效。 超声波和流体动力场将改善固体与水的分离,并且电场将导致颗粒从膜上迁移。
    • 5. 发明申请
    • FORMING SOLUTIONS OF CELLULOSE IN AQUEOUS TERTIARY AMINE OXIDE
    • 纤维素在水性仲胺氧化物中的形成解决方案
    • WO1996021678A1
    • 1996-07-18
    • PCT/GB1996000029
    • 1996-01-09
    • COURTAULDS FIBRES (HOLDINGS) LIMITEDQUIGLEY, MichaelARMISTEAD, Roger, James, ReesNAEF, RainerRONCHETTI, AndrewNUSSBERGER, WernerRONCHETTI, Katharine, Anne
    • COURTAULDS FIBRES (HOLDINGS) LIMITED
    • C08B01/00
    • D01D1/02C08B1/003D01F2/00
    • A method is described for forming a solution of cellulose in a tertiary amine oxide (such as N-methylmorpholine N-oxide) and a non-solvent for cellulose (such as water). The method involves the preparation of a mixture containing excess non-solvent, and removing the excess by heating the mixture to a temperature in excess of the boiling point of the non-solvent at a predetermined sub-atmospheric pressure, and feeding the heated mixture into the introduction zone of a mixing chamber at the predetermined sub-atmospheric pressure, so as to cause flash evaporation of some of the excess non-solvent. The mixture in the mixing chamber is then agitated by a rotor and transported through the mixing chamber whilst further evaporation of the non-solvent occurs. The cellulose solution thus formed is extracted from the mixing chamber, and the evaporated non-solvent withdrawn in cocurrent mode from the same end of the mixing chamber. Apparatus for carrying out the method is also described.
    • 描述了在叔胺氧化物(例如N-甲基吗啉N-氧化物)和纤维素(例如水)的非溶剂中形成纤维素溶液的方法。 该方法包括制备含有过量非溶剂的混合物,并通过在预定的低于大气压的压力下将混合物加热至超过非溶剂沸点的温度,并将加热的混合物加入 在预定的低于大气压的混合室的引入区,以使一些过量的非溶剂闪蒸。 然后将混合室中的混合物用转子搅拌并通过混合室运送,同时发生非溶剂的进一步蒸发。 由此形成的纤维素溶液从混合室中抽出,蒸发的非溶剂从混合室的同一端以并流模式排出。 还描述了用于执行该方法的装置。