公开(公告)号：US5102549A

公开(公告)日：1992-04-07

申请号：US654121

申请日：1991-02-14

Applicant: Kathleen F. George ,  Lise Dahuron ,  John H. Robson ,  George E. Keller, II ,  Benjamin Bikson

Inventor： Kathleen F. George ,  Lise Dahuron ,  John H. Robson ,  George E. Keller, II ,  Benjamin Bikson

IPC: B01D61/02 ,  B01D67/00 ,  B01D69/02 ,  C07C29/76 ,  C07C31/20 ,  C07C41/36 ,  C07D301/10 ,  C07D301/32

CPC classification number: B01D67/0093 ,  B01D61/025 ,  B01D69/02 ,  C07C29/76 ,  C07C41/36 ,  C07D301/10 ,  C07D301/32

Abstract: Operative fluids containing lower glycol are contacted with semi-permeable membranes under reverse osmosis conditions to permeate lower glycol to provide a reclaimed lower glycol product. Exemplary operative fluids include antifreeze solutions, heat transfer fluids, deicers, quenchants, hydraulic fluids, lubricants, solvents and absorbents.

Abstract translation: 含有低级二醇的手术液在反渗透条件下与半透膜接触以渗透低级二醇以提供再生的低级二醇产物。 示例性的操作流体包括防冻溶液，传热流体，除冰剂，淬火剂，液压流体，润滑剂，溶剂和吸收剂。

公开(公告)号：US5067971A

公开(公告)日：1991-11-26

申请号：US609625

申请日：1990-11-06

Applicant: Benjamin Bikson ,  Salvatore Giglia ,  Joyce K. Nelson

Inventor： Benjamin Bikson ,  Salvatore Giglia ,  Joyce K. Nelson

IPC: B01D53/22 ,  B01D53/26 ,  B01D71/52 ,  B01D71/68

CPC classification number: B01D63/02 ,  B01D53/22 ,  B01D53/268 ,  B01D63/021 ,  B01D71/52 ,  B01D71/68 ,  B01D2313/44

Abstract: Process for the dehydration of gases using composite permeable membranes, preferably hollow fiber composite membranes comprised of a porous support coated with an ultrathin layer of a defined sulfonated polysulfone or sulfonated polyether ketone. The processes also contemplate the use of a sweep or purge gas on the water-enriched permeate side of the composite membrane to increase the efficiency of the dehydration process.

Abstract translation: 使用复合渗透膜进行气体脱水的方法，优选中空纤维复合膜，其由涂覆有限定的磺化聚砜或磺化聚醚酮的超薄层的多孔载体组成。 该方法还考虑在复合膜的富水渗透物侧使用扫气或吹扫气体以提高脱水过程的效率。

公开(公告)号：US4881955A

公开(公告)日：1989-11-21

申请号：US242602

申请日：1988-09-12

Applicant: Benjamin Bikson ,  Slavatore Giglia

Inventor： Benjamin Bikson ,  Slavatore Giglia

IPC: B01D53/22 ,  B01D63/02 ,  C01B13/02 ,  C01B21/04

CPC classification number: B01D53/22 ,  B01D63/025 ,  B01D2313/44

Abstract: Feed gas is introduced into the bores of a helically wound hollow fiber membrane cartridge containing hollow fibers of essentially uniform active lengths. Permeate gas flow is maintained countercurrent to the feed and raffinate gas entrance and exit axis, respectively, while the directional flow axis of permeate withdrawal can be at a substantial angle to the helically wound hollow fiber membrane surface. Complete radial mixing of the permeate stream on the outer, permeate side and essentially no axial mixing on either the permeate or the raffinate side of the hollow fiber membrane cartridge are maintained.

Abstract translation: 将进料气体引入到包含基本上均匀的有效长度的中空纤维的螺旋缠绕中空纤维膜滤芯的孔中。 渗透气体流量分别与进料和残液气体入口和出口轴线逆流保持，而渗透物抽出的方向流动轴线可以与螺旋缠绕的中空纤维膜表面成大致的角度。 维持渗透物流在外部，渗透侧上的完全径向混合，并且基本上不会在中空纤维膜滤芯的渗透物或萃余液侧上的轴向混合。

公开(公告)号：US4877421A

公开(公告)日：1989-10-31

申请号：US115927

申请日：1987-11-02

Applicant: Benjamin Bikson ,  Salvatore Giglia

Inventor： Benjamin Bikson ,  Salvatore Giglia

IPC: B01D53/22 ,  B01D67/00 ,  B01D69/12 ,  B01D71/12 ,  B01D71/16 ,  B01D71/22 ,  B01D71/40 ,  B32B5/18 ,  C08J5/18 ,  C08L1/00 ,  C08L1/08 ,  C08L33/04 ,  C08L33/12 ,  D01F2/28 ,  D01F6/00 ,  D01F6/60 ,  D01F6/76 ,  D06M15/07 ,  D06M15/263 ,  D06M101/00 ,  D06M101/16 ,  D06M101/18 ,  D06M101/30 ,  D06M101/34

CPC classification number: B01D67/0083 ,  B01D53/228 ,  B01D69/12 ,  B01D71/12 ,  B01D71/16 ,  B01D71/40 ,  B01D71/76 ,  C08L33/12 ,  C08L1/00

Abstract: A method for enhancing the long term performance of gas separation membranes. The permeable membranes are heated at a moderate temperature of from about 50.degree. C. to 140.degree. C. Use of this method enables restoration and reclamation of permeable membranes that have suffered degradation in performance in gas separation processes.

Abstract translation: 一种提高气体分离膜长期性能的方法。 渗透膜在约50℃至140℃的中等温度下加热。使用这种方法可以恢复和回收在气体分离过程中性能下降的渗透膜。

公开(公告)号：US4840819A

公开(公告)日：1989-06-20

申请号：US35781

申请日：1987-04-08

Applicant: Samuel C. Williams ,  Benjamin Bikson ,  Joyce K. Nelson ,  Robert D. Burchesky

Inventor： Samuel C. Williams ,  Benjamin Bikson ,  Joyce K. Nelson ,  Robert D. Burchesky

IPC: B01D53/22 ,  B01D61/36 ,  B01D67/00 ,  B01D69/12 ,  B01D71/16 ,  B01D71/22 ,  B01D71/68 ,  C08J9/36 ,  D01F6/00 ,  D01F6/76 ,  D01F8/02 ,  D01F8/16

CPC classification number: B01D53/228 ,  B01D69/12

Abstract: Composite membranes having advantageous combinations of selectivity and permeability are prepared by the coating of a separation layer on a porous support layer containing a controlled amount of liquid in the range of from about 10% to about 90% by weight of the liquid present in the fully wet support layer.

Abstract translation: 具有选择性和渗透性的有利组合的复合膜通过在多孔支撑层上涂覆分离层来制备，所述多孔支撑层含有受控量液体的约10重量％至约90重量％ 湿支撑层。

公开(公告)号：US4826599A

公开(公告)日：1989-05-02

申请号：US72056

申请日：1987-07-10

Applicant: Benjamin Bikson ,  Joyce K. Nelson

Inventor： Benjamin Bikson ,  Joyce K. Nelson

IPC: B01D67/00 ,  B01D69/08 ,  B01D69/12 ,  B01D71/16 ,  B01D71/52 ,  B01D71/68 ,  C08J9/36 ,  D01F8/02 ,  B01D13/01

CPC classification number: B01D69/12 ,  B01D69/08

Abstract: A method for producing a composite hollow fiber membrane by coating a porous hollow fiber substrate with a dilute solution of a membrane-forming composition containing a membrane-forming material and a solvent therefor by contacting the porous hollow fiber substrate with the composition, partially evaporating some of the solvent from the coated porous hollow fiber substrate, contacting the partially dried coating porous hollow fiber substrate with a coagulant and recovering the composite hollow fiber membrane. Also included are the composite hollow fiber membranes so produced and their use as permeable membranes for separating at least one fluid from at least one other fluid in a fluid mixture.

公开(公告)号：US06740140B2

公开(公告)日：2004-05-25

申请号：US09947366

申请日：2001-09-07

Applicant: Salvatore Giglia ,  Bradley Quinn Johnson ,  Benjamin Bikson

Inventor： Salvatore Giglia ,  Bradley Quinn Johnson ,  Benjamin Bikson

IPC: B01D5322

CPC classification number: B01D63/02 ,  B01D53/268 ,  B01D63/025 ,  B01D2313/18

Abstract: The present invention provides a hollow fiber membrane gas separation assembly having an integral purge control aperture or purge reflux system which is internal to the hollow fiber apparatus. The assembly is particularly useful for separating water vapor from a gas stream.

Abstract translation: 本发明提供了一种中空纤维膜气体分离组件，其具有在中空纤维装置内部的整体清洗控制孔或吹扫回流系统。 该组件对于从气流中分离水蒸汽是特别有用的。

公开(公告)号：US06540813B2

公开(公告)日：2003-04-01

申请号：US09839920

申请日：2001-04-20

Applicant: Joyce Katz Nelson ,  Benjamin Bikson ,  James Timothy Macheras

Inventor： Joyce Katz Nelson ,  Benjamin Bikson ,  James Timothy Macheras

IPC: B01D5322

CPC classification number: B01D67/0095 ,  B01D53/228 ,  B01D69/08 ,  B01D69/12 ,  B01D71/44 ,  Y10S55/05

Abstract: A method for fabricating a composite membrane includes coating a substrate, such as, for example, an asymmetrical porous hollow fiber substrate, with a solution which includes a perfluorinated polymer and a perfluorinated solvent. Prior to coating, the substrate is impregnated with an impregnation fluid which is immiscible with the perfluorinated solvent. The method of the invention further includes removing the perfluorinated solvent and the impregnation fluid. A composite membrane includes a porous asymmetric hollow fiber substrate having an outer surface coated with a perfluoropolymer coating. Separation devices which include composite membranes and methods of separating a fluid mixture into a fraction enriched in a first component and a fraction depleted in that component also are described.

公开(公告)号：US5964925A

公开(公告)日：1999-10-12

申请号：US968943

申请日：1997-11-12

Applicant: Yurdagul F. Ozcayir ,  Gertrud Goetz ,  Benjamin Bikson

Inventor： Yurdagul F. Ozcayir ,  Gertrud Goetz ,  Benjamin Bikson

IPC: B01D53/22 ,  B01D71/64 ,  C08G73/10

CPC classification number: B01D71/64 ,  B01D53/228 ,  C08G73/1039 ,  C08G73/1042 ,  C08G73/1064

Abstract: Gas separation membranes are prepared from sulfonated polyimides exhibiting desirable gas separation characteristics, combined with good film-forming properties and desirable solubility characteristics.

Abstract translation: 气体分离膜由显示出所需气体分离特性的磺化聚酰亚胺制备，结合良好的成膜性能和所需的溶解度特性。

公开(公告)号：US5871680A

公开(公告)日：1999-02-16

申请号：US907624

申请日：1997-08-08

Applicant: James Timothy Macheras ,  Thomas Anthony Bolan ,  Benjamin Bikson

Inventor： James Timothy Macheras ,  Thomas Anthony Bolan ,  Benjamin Bikson

IPC: B01D67/00 ,  B01D69/08 ,  D01D5/24 ,  B29C47/88

CPC classification number: D01D5/24 ,  B01D67/0016 ,  B01D69/02 ,  B01D69/08 ,  B01D69/087 ,  B01D2323/10 ,  B01D2323/12 ,  B01D2323/40 ,  B01D2323/42 ,  B01D2325/022

Abstract: A process for the preparation of anisotropic hollow fibers useful as permselective separation membranes and for producing composite membranes thereof, involves extruding a spinning dope through a spinneret that extends into a coagulation chamber maintained at subatmospheric pressure, conveying the nascent hollow fiber through a column that extends into the reduced pressure chamber, and contains at least two different abutting liquids arranged in sequence. An apparatus for conducting the process includes the vacuum chamber, the spinneret and the column that extends into the vacuum chamber and is equipped with entrance and exit ports for introduction and removal of at least two abutting liquid coagulation media.

Abstract translation: 用于制备用于选择渗透分离膜并用于制备其复合膜的各向异性中空纤维的方法包括将纺丝原液通过喷丝板挤出，所述喷丝头延伸到保持在低于大气压力的凝固室中，通过延伸的柱输送初生中空纤维 并且包含依次布置的至少两个不同的邻接液体。 用于进行该方法的装置包括真空室，喷丝头和延伸到真空室中的柱，并且配备有用于引入和去除至少两个邻接的液体凝结介质的入口和出口。