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161 条记录 (耗时 0.022 秒)

    PROCESS FOR TREATING PULP MILL CONDENSATES USING A HOLLOW FIBER CONTACTOR
    2.
    发明授权
    PROCESS FOR TREATING PULP MILL CONDENSATES USING A HOLLOW FIBER CONTACTOR 有权
    使用中空纤维接触器处理造纸厂凝结物的方法

    公开(公告)号：EP2188216B1

    公开(公告)日：2018-04-25

    申请号：EP08783286.1

    申请日：2008-07-24

    申请人： FPInnovations

    发明人： JEMAA, Naceur ,  PALEOLOGOU, Michael ,  O'CONNOR, Brian

    IPC分类号： C02F1/20 ,  B01D61/24 ,  D21C11/00

    CPC分类号： B01D63/02 ,  B01D61/246 ,  B01D2311/13 ,  C02F1/20 ,  C02F2103/28 ,  C02F2301/063 ,  D21C11/00

    摘要： A method and apparatus for the treatment of pulp mill condensates is described. A hollow fiber contactor, incorporating a hydrophobic membrane, was used to remove several undesirable compounds from pulp mill condensates. For example, TRS compounds and SO2 were efficiently stripped from kraft and sulphite mill evaporator condensates, respectively. Methanol was also removed from kraft mill condensates but at a lower efficiency than TRS. Furthermore, other undesirable compounds found in condensates of pulp mills that contribute to the BOD and COD loading to effluent treatment systems were also removed. These contactors are cost effective since air, vacuum or a suitable solvent or scrubbing solution can be used as the stripping medium to drive off through the membrane several undesirable compounds from the feed solution. The undesirable compounds removed can thus be burned in the recovery boiler, lime kiln or a dedicated boiler.

    Liquid-liquid extraction method
    3.
    发明授权
    Liquid-liquid extraction method 有权
    液 - 液萃取法

    公开(公告)号：EP2404663B1

    公开(公告)日：2017-11-08

    申请号：EP10181540.5

    申请日：2004-01-22

    申请人： 3M Innovative Properties Co.

    发明人： Fanselow, Dan L. ,  Johnson, Todd W.

    IPC分类号： B01D63/08 ,  B01D63/10 ,  B01D69/10 ,  B01D61/24 ,  B01D11/04

    CPC分类号： B01D65/00 ,  B01D11/0415 ,  B01D11/0484 ,  B01D61/246 ,  B01D63/082 ,  B01D63/10 ,  B01D2313/086 ,  B01D2313/14 ,  B01D2313/20 ,  B01D2315/06

    摘要： The invention relates to a method of extracting a dissolved solute from a first liquid to a second liquid comprising the step of providing an extraction device including opposing first and second frames wherein each frame defines a plurality of open regions and a plurality of fluid pathways. The extraction device further including a microporous membrane sealed between the frames. As a further step the method comprises the step of introducing the first liquid into the first frame, such that the first liquid passes through the first frame pathways. Furthermore, introducing the second liquid into the second frame such that the second liquid passes through the second frame pathways. The first and second liquids contact the microporous membrane at the open regions of the first and second frames, respectively. The method finally comprises the step of transferring the solute from the first liquid to the second liquid across pores of the microporous membrane.