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41. 发明专利

JPH06146046A CATHODE FOR ELECTROLYSIS AND ITS PRODUCTION 失效
公开(公告)号：JPH06146046A
公开(公告)日：1994-05-27
申请号：JP32128592
申请日：1992-11-05
申请人： PERMELEC ELECTRODE LTD
发明人： TANAKA MASASHI , FURUKAWA NAOHARU , IWAKURA CHIAKI , NAKAMATSU HIDEJI
IPC分类号： C25B1/34 , C25B11/04 , C25B11/08 , C25D15/02
摘要： PURPOSE:To provide the platinum group metal type cathode contg. a material negating the reverse current to deteriorate an electrode active material within the electrode and to enable plating of both electrode active materials discretely under optimum conditions at the time of coating two kinds of the electrode active materials by dispersion plating. CONSTITUTION:The coating layer of the cathode active material contg. a hydrogen occlusion alloy and platinum group metal or its oxide is formed on a conductive base body. The occluded hydrogen negates the reverse current and protects the platinum group metal when the hydrogen formed by electrolysis is occluded in the hydrogen occlusion alloy and the reverse current begins to be generated. This coating layer is constituted of two kinds of dispersion plating layers and the hydrogen occlusion alloy is incorporated into the plating layer on the conductive base body side and the platinum group metal into the plating layer on the outer side. Since both electrode active materials are coated and formed by the separate plating conditions, the hydrogen occlusion alloy and the platinum group metal are formable at optimum coverage, etc.

42. 发明专利

JPH0633481B2 失效
公开(公告)号：JPH0633481B2
公开(公告)日：1994-05-02
申请号：JP17708687
申请日：1987-07-17
申请人： PERMELEC ELECTRODE LTD
发明人： NISHIKI YOSHINORI , NAKAMATSU HIDEJI , SHIMAMUNE TAKAYUKI
IPC分类号： C25B11/06 , C25B11/04

43. 发明专利

JPH0581677B2 失效
公开(公告)号：JPH0581677B2
公开(公告)日：1993-11-15
申请号：JP29767387
申请日：1987-11-27
申请人： PERMELEC ELECTRODE LTD
发明人： NISHIKI YOSHINORI , NAKAMATSU HIDEJI , SHIMAMUNE TAKAYUKI
IPC分类号： C25B1/13 , C25B9/10 , C25B11/04 , C25B11/06 , C25B11/10 , C25B11/16
摘要： An electrode catalyst comprising a lead dioxide electrically deposited layer, said layer having particles containing beta -lead dioxide powder dispersed therein, and a method for producing the electrode catalyst are disclosed. The particles contain beta -lead dioxide powder and optionally an electrolytic cocatalyst selected from PTFE, agar, gelatin, a perfluoro ion exchange resin and the like. The present electrode catalyst is useful for production of ozone by electrolysis of water and for production of peroxides by electrolysis of aqueous solutions.

44. 发明专利

JPH0243987A BIPOLAR SYSTEM ELECTROLYTIC CELL 失效
公开(公告)号：JPH0243987A
公开(公告)日：1990-02-14
申请号：JP11438988
申请日：1988-05-11
申请人： PERMELEC ELECTRODE LTD
发明人： NISHIKI YOSHINORI , SAWAMOTO ISAO , NAKAMATSU HIDEJI , SHIMAMUNE TAKAYUKI
IPC分类号： C02F1/46 , C02F1/461 , C25B9/00 , C25B9/04 , C25B9/08 , C25B9/18
摘要： PURPOSE:To nearly halve the number of a pole chambers in comparison with a conventional electrolytic cell by using a structural electrode body equipped with a pair of same kind of electrode bodies having large distance between electrodes as a central structural electrode body and utilizing city water, etc., large in liquid resistance as an electrolyte. CONSTITUTION:A pair of right and left pole chambers are constituted of the electrolytic chambers 7 which are provided to the side walls 2 of an electrolytic cell 1 and have electrode bodies 4 only on the single side. A pole chamber constituted of at least one electrode chamber 7' which has a pair of same polar electrode bodies 4 on both sides is laminated between the above-mentioned right and left pole chambers via the diaphragms 8 so as to position the different kind of electrode bodies 4 on both sides of the diaphragms 8. The distance between a pair of same polar electrode bodies 4 is made sufficiently large so that electrolysis is not substantially caused while keeping both electrode bodies 4 as an anode and a cathode. Furthermore these electrode bodies 4 are connected with the electrode bodies 4 of the side wherein the different kind of electrode bodies 4 adjacent via the diaphragms 8 are not opposed thereto. In other words, the structure is simple as the electrolytic cell for electrolyzing an electrolyte large in liquid resistance and the number of the pole chambers is nearly halved.

45. 发明专利

JPH022825A ELECTROLYTIC OZONIZER HAVING WASTE GAS DECOMPOSING FUNCTION AND METHOD FOR DECOMPOSING WASTE GAS WITH THE SAME OZONIZER 失效
公开(公告)号：JPH022825A
公开(公告)日：1990-01-08
申请号：JP11438888
申请日：1988-05-11
申请人： PERMELEC ELECTRODE LTD
发明人： NISHIKI YOSHINORI , SAWAMOTO ISAO , NAKAMATSU HIDEJI , SHIMAMUNE TAKAYUKI
IPC分类号： B01D53/34 , B01D53/38 , B01D53/86 , C02F1/78
摘要： PURPOSE:To efficiently decompose O3 by connecting the anode chamber of an electrolytic cell for electrolyzing water to a waste gas decomposition part packed with a waste gas decomposition catalyst through an O3 treatment part and by also connecting the cathode chamber to the waste gas decomposition part. CONSTITUTION:When water is electrolyzed in an electrolytic cell 4 divided into anode and cathode chambers 2, 3 with a partition wall 1, O3-O2 mixed gas is generated in the anode chamber 2 and H2 in the cathode chamber 3. The mixed gas is introduced into an O3 treatment part 6 and used to treat a medium to be treated such as tap water with O3 and the waste gas having a lowered concn. of O3 is sent to a waste gas treatment part 8. The H2 in the cathode chamber 3 is also sent to the part 8 and converted into steam by burning with an H2 decomposition catalyst 10. By heat generated during the burning, O3 adjacent to the H2 with a partition wall 11 in-between is decomposed to produce O2.

46. 发明专利

JPH01288390A ELECTROLYTIC CELL 失效
公开(公告)号：JPH01288390A
公开(公告)日：1989-11-20
申请号：JP11891588
申请日：1988-05-16
申请人： PERMELEC ELECTRODE LTD
发明人： SHIMAMUNE TAKAYUKI , NISHIKI YOSHINORI , NAKAMATSU HIDEJI
IPC分类号： C02F1/46 , C02F1/461 , C02F1/467 , C02F1/76 , C25B9/00 , C25B9/08 , C25B9/10
摘要： PURPOSE:To efficiently treat a liquid to be treated, by a method wherein a gas permeable and liquid impermeable window part is formed to the electrode chamber of an electrolytic cell and the gas formed in the electrode chamber is passed through the window part to be brought into contact with the liquid to be treated of the outside. CONSTITUTION:A solid electrolyte electrode 6 composed of an ion exchange membrane 5 having a cathodic substance layer 3 and an anodic substance layer 4 formed to the under and upper surfaces thereof is arranged to the opening part of the lower base body 2 of an electrolytic cell and, when an electrolyte is supplied from a liquid supply port 7, a chlorine gas is generated in an anode chamber by the oxidation of a chlorine ion. The chlorine gas reaches a window part 12 to be brought into contact with the liquid 14 to be treated in the pipe 15 to be treated positioned on the upper surface of the window part 12 and the sterilizing or disinfecting treatment of the liquid 14 to be treated is performed. Caustic soda is formed in a cathode chamber and a hydrogen gas is also generated therein and caustic soda is taken out to the outside from a liquid take-out port 1. By this method, the contamination of the electrolyte can be avoided.

47. 发明专利

JPH01287289A PLURAL ELECTRODES-TYPE ELECTROLYTIC CELL 失效
公开(公告)号：JPH01287289A
公开(公告)日：1989-11-17
申请号：JP11439088
申请日：1988-05-11
申请人： PERMELEC ELECTRODE LTD
发明人： NISHIKI YOSHINORI , SAWAMOTO ISAO , NAKAMATSU HIDEJI , SHIMAMUNE TAKAYUKI
IPC分类号： C25B9/10 , C02F1/461 , C02F1/78 , C25B1/13 , C25B1/30 , C25B9/00 , C25B9/04 , C25B9/08 , C25B9/18
摘要： PURPOSE:To simplify the structure of an electrolytic cell for an electrolyte having large liq. resistance by providing plural solid electrolyte electrodes each obtained by covering both sides of an ion-exchange membrane respectively with an anode and a cathode to form plural electrode chambers, and specifying the electrical connection. CONSTITUTION:Plural solid electrolyte electrodes 10 each obtained by covering one side of an ion-exchanged membrane 7 with an anode material 8 and the other side with a cathode material 9 are arranged in an electrolytic cell 1 so that the anode materials 8 are opposed to each other and the cathode materials 9 are opposed to each other. Consequently, the cell 1 is separated into an anode chamber 11, a cathode chamber 12, an anode chamber 11', and a cathode chamber 12'. An anode current collector 13 is connected to the anode material 8 of the electrode 10, and a cathode current collector 14 is connected to the cathode material 9 of the right electrode 10. The cathode material 9 of the left electrode 10 and the anode material 8 of the central electrode 10 are connected by a connector 15, and the cathode material 9 of the central electrode and the anode material 8 of the right electrode 10 are connected by a connector 15'. As a result, only a normal electrode reaction between unlike electrode materials is selectively caused. This plural electrodes-type electrolytic cell is used for the production of ozone, etc., by water electrolysis.

48. 发明专利

JPH01139786A ELECTRODE STRUCTURE 失效
公开(公告)号：JPH01139786A
公开(公告)日：1989-06-01
申请号：JP29767487
申请日：1987-11-27
申请人： PERMELEC ELECTRODE LTD
发明人： NISHIKI YOSHINORI , NAKAMATSU HIDEJI , SHIMAMUNE TAKAYUKI
IPC分类号： C25B9/10 , C25B11/04 , C25B11/16
摘要： PURPOSE:To provide the title electrolytic electrode structure having prescribed thickness And activity by interposing a deposit layer contg. the fine particles contg. beta-lead dioxide powder between a fluorine-based ion-exchange membrane and a lead dioxide electrodeposition coating layer at the time of forming the coating layer on the membrane. CONSTITUTION:The deposit layer contg. the fine particles contg.-lead dioxide powder is formed on one surface of the fluorine-based ion-exchange membrane as the solid electrolyte. The lead dioxide electrodeposition coating layer is then formed on the surface of the deposit layer, and a solid electrolyte-type electrolytic electrode structure is obtained. Since the deposit layer contg. the fine particles contg. beta-lead dioxide powder is interposed between the ion- exchange membrane and the lead dioxide electrodeposition coating layer, and an active substance is not infiltrated into the ion-exchange membrane. In addition, a side reaction is not caused, the current efficiency can be increased, and further the conventional hot pressing which exercises unfavorable influence on the membrane can be dispensed with.

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