IMMERSIBLE ROTARY DISC FILTRATION DEVICE
    1.
    发明公开
    IMMERSIBLE ROTARY DISC FILTRATION DEVICE 失效
    带有旋转WASHERS潜水过滤装置

    公开(公告)号:EP0902723A4

    公开(公告)日:1999-07-21

    申请号:EP96941456

    申请日:1996-11-22

    申请人: MEMBREX INC

    摘要: Rotary disc filtration devices and filtration processes using those devices are disclosed. The devices have one or more fluid filtration gaps into which fluid to be filtered into permeate and retentate is placed. Each fluid filtration gap is defined by a disc and a filter, one of which rotates with respect to the other. The filter is carried on a filter member. The discs and interleaved filter members may be suspended from the top of the device, the top may rest on a vessel containing the fluid to be filtered, the discs may be attached to a single shaft for rotation, and the filter members may be suspended from a sleeve around the shaft, which sleeve keeps the filters centered with respect to the discs. Removal of the device's top removes the discs and filter members together, facilitating maintenance. Each filter member may have a peripheral lip and the lips of adjacent filter members may be sufficiently close to one another to substantially restrict the flow of retentate out of the fluid filtration gap. Retentate flowing out of each fluid filtration gap may be directed into the vessel to counteract the tendency of the fluid in the vessel to rotate in the same direction as the discs are rotated, or the retentate may be recycled directly to the fluid filtration gaps. The liquid level in the vessel may be held constant using a dual-pipe system and three-head peristaltic pump.

    ROTARY DISC FILTRATION DEVICE WITH MEANS TO REDUCE AXIAL FORCES
    3.
    发明授权
    ROTARY DISC FILTRATION DEVICE WITH MEANS TO REDUCE AXIAL FORCES 有权
    旋转圆盘过滤设备与用于减少推力负荷

    公开(公告)号:EP1059985B1

    公开(公告)日:2004-08-25

    申请号:EP99907124.4

    申请日:1999-02-18

    申请人: Membrex, Inc.

    摘要: Rotary disc filtration devices and filtration processes using those devices are disclosed. The devices have one or more fluid filtration gaps into which fluid to be filtered into permeate and retentate is placed. Each fluid filtration gap is defined by a disc and a filter, one of which rotates with respect to the other. The filter is carried on a filter support member. Fresh feed is introduced to each fluid filtration gap near the longitudinal axis of the shaft on which the discs are rotated. Holes through the disc in the active area of the disc, which is the area opposite the filter, counteract the tendency of the disc and filter to move towards one another.

    IMMERSIBLE ROTARY DISC FILTRATION DEVICE
    4.
    发明授权
    IMMERSIBLE ROTARY DISC FILTRATION DEVICE 失效
    带有旋转WASHERS潜水过滤装置

    公开(公告)号:EP0902723B1

    公开(公告)日:2003-06-25

    申请号:EP96941456.4

    申请日:1996-11-22

    申请人: Membrex, Inc.

    IPC分类号: B01D63/16 B01D29/07 B01D29/54

    摘要: Rotary disc filtration devices and filtration processes using those devices are disclosed. The devices have one or more fluid filtration gaps into which fluid to be filtered into permeate and retentate is placed. Each fluid filtration gap is defined by a disc and a filter, one of which rotates with respect to the other. The filter is carried on a filter member. The discs and interleaved filter members may be suspended from the top of the device, the top may rest on a vessel containing the fluid to be filtered, the discs may be attached to a single shaft for rotation, and the filter members may be suspended from a sleeve around the shaft, which sleeve keeps the filters centered with respect to the discs. Removal of the device's top removes the discs and filter members together, facilitating maintenance. Each filter member may have a peripheral lip and the lips of adjacent filter members may be sufficiently close to one another to substantially restrict the flow of retentate out of the fluid filtration gap. Retentate flowing out of each fluid filtration gap may be directed into the vessel to counteract the tendency of the fluid in the vessel to rotate in the same direction as the discs are rotated, or the retentate may be recycled directly to the fluid filtration gaps. The liquid level in the vessel may be held constant using a dual-pipe system and three-head peristaltic pump.

    EP0586591A4 -
    5.
    发明公开
    EP0586591A4 - 失效
    EP0586591A4 - Google专利

    公开(公告)号:EP0586591A4

    公开(公告)日:1994-04-27

    申请号:EP92913641

    申请日:1992-05-28

    申请人: MEMBREX, INC.

    摘要: A rotary disc filtration device having a fluid filtration gap between a filtration surface and a disc is disclosed. The disc and/or filter has one or more spiral grooves in fluid communication with fluid in the gap. The disc and/or filter is rotated and one or both may be axially oscillated and/or vibrated to create the shear at the filter surface that increases permeate flux through the filter. Several discs and filters may be interleaved to increase filtration device capacity and make more efficient use of equipment space. In such a device, the discs can be mounted on a common shaft for rotation in unison and can have spiral grooves on both major faces of each disc. The filters are held stationary in that device and are fluidly connected to facilitate collection of the permeate.

    摘要翻译: 公开了在过滤表面(62)和盘(36)之间具有流体过滤间隙(图14中的56)的旋转盘过滤装置(图12中的30)。 盘(36)和/或过滤器(34)具有与间隙(56)中的流体流体连通的一个或多个螺旋凹槽(52)。 盘(36)和/或过滤器(34)旋转,并且其中一个或两个可以轴向振荡和/或振动以在过滤器表面(62)产生增加通过过滤器(34)的渗透通量的剪切力。 多个盘(图24中的36)和过滤器(34)可以交错以增加过滤设备容量并且更有效地使用设备空间。 在这样的装置(106)中,盘(36)可以安装在共同的轴(图25中的104)上以便一致旋转并且可以在每个主面(132,134)上具有螺旋形凹槽 盘(36)。 过滤器(34)在该装置(106)中保持静止并流体连接以便于收集渗透物。

    ROTARY FILTRATION DEVICE WITH FLOW-THROUGH INNER MEMBER
    7.
    发明公开
    ROTARY FILTRATION DEVICE WITH FLOW-THROUGH INNER MEMBER 审中-公开
    旋转滤光设备符合胸臆流出元

    公开(公告)号:EP1094877A1

    公开(公告)日:2001-05-02

    申请号:EP99912619.6

    申请日:1999-03-18

    申请人: Membrex Inc.

    IPC分类号: B01D33/06 B01D65/08

    摘要: Rotary filtration devices and processes are disclosed. The devices have at least one inner member and at least one outer member, one or both of which rotate so that they rotate with respect to one another and which define a fluid filtration gap therebetween. There are one or more filters facing the fluid filtration gap and which are located either on the inner member or on the outer member or on both. During the filtration process, permeate passes from the feed fluid in the fluid filtration gap through the one or more filters. The inner member has an internal pathway for the flow of feed fluid. Fluid from the body of fluid to be filtered flows from the body of feed fluid to be filtered through the internal pathway, reverses direction, and then flows through the fluid filtration gap back to the body of feed fluid. Alternatively, fluid from the body of fluid to be filtered passes from the body of feed fluid to be filtered through the fluid filtration gap, reverses direction, and then flows through the internal pathway back to the body of feed fluid. The outer member may be closed so that feed fluid keeps circulating in the fluid filtration gap until it leaves through the filter as permeate or reenters the surrounding reservoir of feed fluid via, for example, a pressure control valve that relieves any overpressure condition in the fluid filtration gap.

    ROTARY FILTRATION DEVICE AND FILTER PACK THEREFOR
    8.
    发明授权
    ROTARY FILTRATION DEVICE AND FILTER PACK THEREFOR 失效
    旋转过滤器和过滤嘴THEREFOR

    公开(公告)号:EP0588902B1

    公开(公告)日:1999-08-04

    申请号:EP92912603.5

    申请日:1992-05-28

    申请人: Membrex, Inc.

    IPC分类号: B01D29/39 B01D29/05 B01D33/23

    摘要: A rotary filtration system comprising a device having a fluid filtration gap between a filter and a rotating member (e.g., a disc), a filter pack for use in the rotary filtration device, and a cartridge formed by structurally connecting (and optionally fluidly connecting) two or more of the filter packs is disclosed. In the filter pack, the filter lies adjacent a permeate collection member, which also desirably can support the filter. The permeate collection member has one or more passageways for collecting the permeate that flows through the filter and is connected to a permeate collection header in the device. The filter pack and device are designed so that the filter pack may be easily inserted into and removed from the device, preferably by moving the filter pack in a direction generally perpendicular to the longitudinal axis of the shaft that rotates the rotating member. Desirably the rotating member and/or filter has one or more spiral grooves in fluid communication with fluid in the gap. Several rotating members and filter packs may be interleaved to increase filtration device capacity and make more efficient use of equipment space. In such a device, the rotating members can be mounted on a common shaft for rotation in unison and can have spiral grooves on both major faces of each rotating member.

    HYDROPHILIC ARTICLE AND METHOD OF PRODUCING SAME
    10.
    发明授权
    HYDROPHILIC ARTICLE AND METHOD OF PRODUCING SAME 失效
    亲水性产品及其制造方法。

    公开(公告)号:EP0299063B1

    公开(公告)日:1993-12-08

    申请号:EP88902998.9

    申请日:1988-01-28

    申请人: Membrex, Inc.

    IPC分类号: B01D71/56 B01D71/58

    摘要: Matrix comprising molecules of a nitrile-containing polymer which provides solely on the surface of the matrix sufficient uncharged substituted amide groups to render the surface hydrophilic. The invention also provides an article of manufacture comprising the matrix. Another aspect of the invention provides a method of producing a matrix having a hydrophilic surface which comprises treating molecules of a nitrile-containing polymer so as to derivatize a portion of the nitrile groups of the polymer and provide solely on the surface of the matrix sufficient uncharged, hydrophilic substituted amide groups to render the surface hydrophilic. Another embodiment of the invention concerns improved methods of filtration, ultrafiltration, microfiltration, reverse osmosis, dialysis, pervaporation, sieving, affinity chromatography, affinity purification, affinity separation, or affinity adsorption which comprises using the article of manufacture.