公开(公告)号：US5725633A

公开(公告)日：1998-03-10

申请号：US656953

申请日：1996-06-06

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

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

IPC: B01D53/22 ,  B01D71/64 ,  C08G73/10 ,  B01D71/68

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

Abstract: Novel polyimide gas separation membranes and the process of using such membranes to separate gases are disclosed. The polyimides are formed from rigid aromatic dianhydrides and aromatic diamines that contain sulfonic acid, salified sulfonic acid, or sulfonic ester groups. Methods of preparing improved composite gas separation membranes from the sulfonated polyimides of this invention are disclosed.

Abstract translation: 公开了新型聚酰亚胺气体分离膜和使用这种膜分离气体的方法。 聚酰亚胺由含有磺酸，磺化磺酸或磺酸酯基团的刚性芳族二酸酐和芳族二胺形成。 公开了从本发明的磺化聚酰亚胺制备改进的复合气体分离膜的方法。

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.