公开(公告)号：EP0483332B1

公开(公告)日：1994-09-21

申请号：EP91909911.9

申请日：1991-05-23

申请人： TITALYSE S.A.

发明人： NGUYEN, Trong, Thinh ,  WIAUX, Jean-Pol ,  RAETZO, Patrick

IPC分类号： C02F1/46 ,  C25C7/04

CPC分类号： C02F1/46109 ,  C02F1/4678 ,  C02F2001/46157 ,  C02F2101/20 ,  C02F2201/4611 ,  C02F2201/46115 ,  C25C7/04

摘要： A flow-through electrolytic cell for removing heavy metals from waste water has a cell housing (1) with an inlet (7) and an outlet (8) for solution to be treated at opposite ends. Foam metal cathodes (3) are arranged in the cell housing transverse to the housing and extending over its entire width, with coated titanium mesh anodes (4) interleaved between the cathodes. The anodes (4) are contained in diaphragm-forming boxes (2) of microporous ion-permeable material. Each box (2) forms an anode compartment and has means (5, 6) for circulating anolyte therethrough. The boxes (2) extend partly across and are offset alternately from opposite sides of the cell housing (1) to provide a serpentine path for liquid to be treated (catholyte) flowing from the inlet (7) to the outlet (8) through the cathodes (3). The anolyte circulation includes a siphon (20) for controlling the anolyte head to prevent unwanted mixing of the anolyte and catholyte. The cell is useful for the treatment of rinse waters from chloride-containing baths, organic-containing plating baths, rinse waters containing multi-oxidation-state metallic ions, and spent baths from the electroless plating of nickel.

公开(公告)号：EP0099693A1

公开(公告)日：1984-02-01

申请号：EP83303878.9

申请日：1983-07-04

申请人： Asahi Kasei Kogyo Kabushiki Kaisha

发明人： Yoshida, Muneo ,  Tamura Yoshitomo

IPC分类号： C25B1/46 ,  C25B9/00 ,  C25C7/04

CPC分类号： C25B9/206 ,  C25B1/46 ,  C25B9/08 ,  C25B15/08

摘要： In an electrolytic cell divided into anode and cathode compartments by an ion exchange membrane, the space in the compartments between the electrode 4 and cell wall 2 incorporates an open ended duct 11. The duct has a horizontal part 14 with a lower opening 16 adjacent a fresh electrolyte inlet 7, and a vertical part or parts 13 with an upper opening 15 adjacent a spent electrolyte outlet 8. Gas bubbles in the electrolyte from gas evolved at the electrode 4 cause a difference in gross density between electrolyte outside the duct 11 and within the duct 11. resulting in a down-flow of electrolyte through the duct.

摘要翻译： 在通过离子交换膜分成阳极和阴极隔室的电解池中，电极4和电池壁2之间的隔间中的空间包含开口管道11.管道具有水平部分14，下部开口16邻近 新鲜的电解液入口7和垂直部分13，其上部开口1邻近废电解液出口8.在电极4处放出的气体中的电解液中的气泡引起导管11外的电解质之间的密度差异， 导管11导致电解质通过导管的下流。

公开(公告)号：EP0006875A1

公开(公告)日：1980-01-23

申请号：EP78900046

申请日：1979-02-14

申请人： INNOVA INC

发明人： MOEGLICH KARL

IPC分类号： B01D61/08 ,  B01D61/46 ,  B01D63/00 ,  B01D69/12 ,  C25B13/00 ,  C25B13/04 ,  C25B13/08 ,  C25C7/04

CPC分类号： C25C7/04 ,  B01D61/46 ,  B01D69/12 ,  C25B13/04

摘要： Une couche poreuse (22) est disposee sur l'une ou sur les deux faces d'une membrane semi-permeable (20) afin d'accroitre ou de modifier le passage des ions. La membrane (20) peut etre un film de polymere et couche poreuse (22) peut etre une couche a la surface de la membrane ou une structure poreuse independante mise en contact avec la membrane. La ou les couches poreuses (22) rendent certains films de polymere, qui sont normalement impermeables aux ions, capables de laisser le passage aux ions dans un systeme du type a electrodialyse.