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    • 2. 发明申请
    • Crystallized pellet/liquid separator
    • 结晶丸/液分离器
    • US20070062872A1
    • 2007-03-22
    • US11501606
    • 2006-08-09
    • Kenny ParkerRobert LinRaymond IsaacDuane Hall
    • Kenny ParkerRobert LinRaymond IsaacDuane Hall
    • B01D61/00
    • C08G63/89B01D61/18B01D61/20B01J8/006B01J8/007B01J8/22B01J8/228B01J2208/00539B01J2208/00672B01J2208/00761B01J2208/00778B01J2219/00162B01J2219/00252
    • A process and apparatus which reduces the fines in a liquid discharge stream and/or increases the dryness of a solids discharge stream while under a pressure equal to or greater than the vapor pressure of the liquid. There is provided a process for separating particles such as polyethylene terephthalate or polyethylene naphthalate from a liquid in a slurry comprising: a. feeding a slurry comprising solid particles and a liquid into a within a separation zone maintained at a pressure equal to or greater than the vapor pressure of the liquid; b. contacting the slurry in the separation zone with a porous filter, optionally a microfilter, nanofilter, reverse osmosis filter, or ultrafilter, and separating liquid from the particles, wherein the liquid flows through the filter into an outer annulus defined as a space between the wall of the separation device and the filter, and said porous filter optionally having a terminal point beyond which the separated liquid does not pass from the outer annulus back through the filter; c. accumulating no liquid in the outer annulus or accumulating liquid in the outer annulus at a level below or in front of the terminal point, and continuously discharging the separated liquid from the outer annulus through a liquid outlet; d. decoupling the particles from the separation zone through the solids outlet to a low pressure below the vapor pressure of the liquid at the liquid temperature within the separation zone while maintaining a pressure on the particles prior to decoupling at or above the vapor pressure of the liquid within the separation zone.
    • 一种在液体排出流中减少细粉和/或在等于或大于液体的蒸气压的压力下增加固体排出流的干度的方法和装置。 提供了一种用于从浆液中的液体分离颗粒如聚对苯二甲酸乙二醇酯或聚萘二甲酸乙二醇酯的方法,包括:a。 将包含固体颗粒和液体的浆料进料到保持在等于或大于液体的蒸气压的压力的分离区内; b。 使分离区中的浆料与多孔过滤器,任选的微过滤器,纳米过滤器,反渗透过滤器或超滤器接触,并将液体从颗粒中分离,其中液体流过过滤器,形成外壁,其被定义为壁之间的空间 分离装置和过滤器,并且所述多孔过滤器任选地具有终点,超过该终点,分离的液体不从外环通过过滤器; C。 在外环形空间中没有液体或在外环空中积聚液体在终点下方或前方的水平,并且通过液体出口连续排出来自外环的分离的液体; d。 在分离区内的液体温度下将来自分离区的颗粒通过固体出口分离成低于液体蒸气压的低压,同时在等于或高于液体的蒸汽压力的去耦之前保持颗粒上的压力, 分离区。