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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.
CPC分类号： B01D29/055 , B01D29/39 , B01D29/54 , B01D29/86
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.
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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.
发明人： ROLCHIGO, Philip, M. , HODGINS, Leonard, T. , JEN, Chang, W. , KAHN, Malcolm, R. , YU, Guanghua
CPC分类号： B01D65/08 , B01D29/055 , B01D29/39 , B01D29/54 , B01D29/86 , B01D63/16 , B01D2321/185 , B01D2321/2033
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.
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公开(公告)号：EP0588902A1
公开(公告)日：1994-03-30
申请号：EP92912603.0
申请日：1992-05-28
申请人： Membrex, Inc.
CPC分类号： B01D65/00 , B01D29/055 , B01D29/39 , B01D29/54 , B01D29/86 , B01D29/945 , B01D29/96 , B01D33/23 , B01D33/39 , B01D33/722 , B01D33/763 , B01D33/803 , B01D35/06 , B01D36/001 , B01D63/084 , B01D63/16 , B01D65/08 , B01D2321/2058 , B01D2321/2083
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.
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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.
CPC分类号： B01D63/16 , B01D29/115 , B01D29/117 , B01D29/118 , B01D29/86 , B01D29/885 , B01D29/904 , B01D35/027 , B01D35/06 , B01D35/147 , B01D35/157 , B01D35/26 , B01D36/001 , B01D65/08 , B01D2201/287 , B01D2315/02 , B01D2321/2058 , B01D2321/2083 , Y10T436/255
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.
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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.
CPC分类号： B01D65/00 , B01D29/055 , B01D29/39 , B01D29/54 , B01D29/86 , B01D29/945 , B01D29/96 , B01D33/23 , B01D33/39 , B01D33/722 , B01D33/763 , B01D33/803 , B01D35/06 , B01D36/001 , B01D63/084 , B01D63/16 , B01D65/08 , B01D2321/2058 , B01D2321/2083
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.
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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.
CPC分类号： B01D67/0093 , B01D71/42 , B01D2323/30 , B01D2323/38 , B01J20/321 , B01J20/3248 , B01J20/3251 , B01J20/3274 , B01J20/3278 , B01J20/3282
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.
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公开(公告)号：EP0299063A1
公开(公告)日：1989-01-18
申请号：EP88902998.0
申请日：1988-01-28
申请人： Membrex, Inc.
IPC分类号： B01D15 , B01D67 , B01D69 , B01D71 , B01J20 , C08J9 , D06M13 , D06M14 , G01N30 , G01N33 , D06M101
CPC分类号： B01D67/0093 , B01D71/42 , B01D2323/30 , B01D2323/38 , B01J20/321 , B01J20/3248 , B01J20/3251 , B01J20/3274 , B01J20/3278 , B01J20/3282
摘要： On utilise une matrice comprenant des molécules d'un polymère contenant du nitrile qui forme uniquement à la surface de la matrice des groupes amides substitués non chargés en quantité suffisante pour rendre la surface hydrophyle. L'invention décrit également un article de fabrication comprenant la matrice. Un autre aspect de l'invention concerne un procédé de production d'une matrice ayant une surface hydrophyle et qui consiste à traiter des molécules d'un polymère contenant du nitrile de manière à dériver une portion des groupes nitriles du polymère et former uniquement sur la surface de la matrice des groupes amides substitués hydrophyles non chargés en quantité suffisante pouvant rendre la surface hydrophyle. Un autre mode de réalisation de l'invention concerne des procédés améliorés de filtration, d'ultrafiltration, de microfiltration, d'osmose inverse, de dialyse, d'évaporation à travers une membrane, de tamisage, de chromatographie par affinité, de purification par affinité, de séparation par affinité, ou d'adsorption par affinité qui impliquent l'utilisation de l'article de fabrication.
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公开(公告)号：EP1059985A1
公开(公告)日：2000-12-20
申请号：EP99907124.4
申请日：1999-02-18
申请人： Membrex, Inc.
IPC分类号： B01D33/15
CPC分类号： B01D29/055 , B01D29/39 , B01D29/54 , B01D29/86
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.
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公开(公告)号：EP0902723A1
公开(公告)日：1999-03-24
申请号：EP96941456.0
申请日：1996-11-22
申请人： Membrex, Inc.
发明人： ROLCHIGO, Philip, M. , HODGINS, Leonard, T. , JEN, Chang, W. , KAHN, Malcolm, R. , YU, Guanghua
CPC分类号： B01D65/08 , B01D29/055 , B01D29/39 , B01D29/54 , B01D29/86 , B01D63/16 , B01D2321/185 , B01D2321/2033
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.
摘要翻译： 公开了使用这些装置的旋转圆盘过滤装置和过滤工艺。 这些装置具有一个或多个过滤间隙，待过滤的流体渗入渗透物或渗余物中。 每个流体过滤间隙由盘（46）和过滤器（44）限定，其中一个相对于另一个旋转。 过滤器装在过滤器部件上。 盘和交错的过滤器构件可以从设备的顶部（32,34）悬挂，顶部可以搁置在容纳待过滤流体的容器上，盘可以连接到单个轴（38）以旋转， 并且过滤构件可以从围绕轴的套筒（42）悬挂下来，该套筒使过滤器相对于圆盘保持居中。 拆下设备的顶部可将光盘和过滤器部件拆卸在一起，便于维护。
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