专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

GB2291887A Use of insoluble electrode comprising an iridium oxide-containing coating as anode in electrolytic reduction of a disulphide compound 未知
公开(公告)号：GB2291887A
公开(公告)日：1996-02-07
申请号：GB9514975
申请日：1995-07-21
申请人： PERMELEC ELECTRODE LTD
发明人： MATSUMOTO YUKIEI , KOBAYASHI ATSUSHI , YAMANE GENZO
IPC分类号： C07C319/06 , C07C323/58 , C25B3/25 , C25B3/04
摘要： PURPOSE:To electrolytically reducing a disulfide compound stably for a long time. CONSTITUTION:In a cathode chamber of an electrolytic cell separated into an anode chamber and the cathode chamber by a diaphragm, a cathode having an electrode active surface composed of >=2 kinds of alloys selected from among titanium, tantalum, niobium or zirconium or titanium, tantalum, niobium, zirconium, silver, tin, aluminum, iron, molybdenum, gold, antimony, bismuth, palladium or zinc is used. On the other hand, as the anode, and insoluble anode cathode by an electrode active material containing iridium oxide on a corrosion resistant metal composed of titanium, tantalum, niobium, zirconium or their alloy is used. Thus, the operation high in current efficiency and stable for a long time is attained.

2. 发明专利

FR2723107A1 未知
公开(公告)号：FR2723107A1
公开(公告)日：1996-02-02
申请号：FR9509211
申请日：1995-07-28
申请人： PERMELEC ELECTRODE LTD
发明人： MATSUMOTO YUKIEI , KOBAYASHI ATSUSHI , YAMANE GENZO
IPC分类号： C07C319/06 , C07C323/58 , C25B3/25 , C25B11/04 , C25B3/04
摘要： PURPOSE:To electrolytically reducing a disulfide compound stably for a long time. CONSTITUTION:In a cathode chamber of an electrolytic cell separated into an anode chamber and the cathode chamber by a diaphragm, a cathode having an electrode active surface composed of >=2 kinds of alloys selected from among titanium, tantalum, niobium or zirconium or titanium, tantalum, niobium, zirconium, silver, tin, aluminum, iron, molybdenum, gold, antimony, bismuth, palladium or zinc is used. On the other hand, as the anode, and insoluble anode cathode by an electrode active material containing iridium oxide on a corrosion resistant metal composed of titanium, tantalum, niobium, zirconium or their alloy is used. Thus, the operation high in current efficiency and stable for a long time is attained.

3. 发明专利

DE19527642A1 未知
公开(公告)号：DE19527642A1
公开(公告)日：1996-02-22
申请号：DE19527642
申请日：1995-07-28
申请人： PERMELEC ELECTRODE LTD
发明人： MATSUMOTO YUKIEI , KOBAYASHI ATSUSHI , YAMANE GENZO
IPC分类号： C07C319/06 , C07C323/58 , C25B3/25 , C25B3/04 , C25B11/06 , C25B11/03 , C25B11/10
摘要： In the electrolytic reduction of a disulfide compound e.g. cystine to produce cysteine in a cathode chamber of an electrolytic bath partitioned by a diaphragm into an anode chamber and the cathode chamber is disclosed, the cathode has active surface comprising a metal selected from titanium, tantalum, niobium, and zirconium or an alloy of at least two metals selected from titanium, tantalum, niobium, zirconium, silver, tin, aluminum, iron, molybdenum, gold, antimony, bismuth, palladium and zinc, and the anode is an insoluble electrode comprising a corrosion resistant metal comprising titanium, tantalum, niobium or zirconium, or an alloy of any two or more thereof having coated thereon an electrode active substance containing iridium oxide. By the method, the electrolysis can be operated stably over a long period of time with a high current efficiency.

4. 发明专利

JPH10230293A MICROORGANISM ELECTRODE AND WATER TREATING DEVICE AND METHOD USING THE SAME 失效
公开(公告)号：JPH10230293A
公开(公告)日：1998-09-02
申请号：JP5258097
申请日：1997-02-21
申请人： EBARA CORP , SAKAKIBARA YUTAKA , KURODA MASAKAZU , PERMELEC ELECTRODE LTD
发明人： NISHII TAKANORI , KONO TAKU , SAKAKIBARA YUTAKA , KURODA MASAKAZU , KOBAYASHI ATSUSHI
IPC分类号： C02F3/10 , C02F3/34 , C25B11/02 , C25B11/03 , C25B11/04
摘要： PROBLEM TO BE SOLVED: To provide a water treating device and method capable of making a current density uniform and cathode surface areas larger, improving the contact efficiently of water to be treated and cathodes, making the part near the cathode surfaces which are the field of reaction into an oxygen-free state and denitrifying the nitric acid ions in the water with high efficiency. SOLUTION: Microorganism electrodes formed by immobilizing denitrifying bacteria to meshed electrodes are used as the cathodes of the water treating device 1 which has an anode 2 and the cathodes 3 to 7, is provided with an inflow port 10 for the water to be treated on the cathode side and an outflow port 11 on the anode side and used for the denitrification treatment of the water. The cathode described above are preferably installed in plural or multiple stages to the anode and the anode is the meshed electrode or the microorganism electrode formed by immobilizing the nitrifying bacteria thereto and may be used in single stage or plural or multiple stages. Further, the electrodes installed in a plurality or the multiple stages preferably have control mechanism capable of independently controlling the currents which may be respective impressed thereon.

5. 发明专利

JPH03100453A METHOD AND DEVICE FOR MEASURING OZONE CONCENTRATION 失效
公开(公告)号：JPH03100453A
公开(公告)日：1991-04-25
申请号：JP23787889
申请日：1989-09-13
申请人： PERMELEC ELECTRODE LTD
发明人： KOBAYASHI ATSUSHI , AOKI KOICHI , KATOU NAKABIDE , NISHIKI YOSHINORI
IPC分类号： G01N27/30 , G01N27/416
摘要： PURPOSE:To extremely improve sensitivity and to enable measurement of ozone concn. over a wide range by using a carbon-reinforced electrode as an electrode. CONSTITUTION:Ozonized water 2 flowing in a piping 1 comes into contact with a sensor 3 installed at the intermediate point of the piping 1 and the ozone concn. is measured. A sensor 3 has 3 kinds of electrodes; the carbon-reinforced electrode 4 which is the core of a sharp pencil, a reference electrode 5 which is a satd. calomel electrode and a counter electrode 6 which is platinum electrode. The front end part of the carbon-reinforced electrode 4, the front end part of the reference electrode 5 and the counter electrode 6 are disposed in proximity to each other to a sensor fixing member 7 so as to minimize the change in the current value occurring in liquid resistance. The sensor 3 is generally installed in the ozonized water in a suitable container or inside of the piping. The current generated in the sensor 3 is detected as a current value through a potentiostat 8 and the detected value is displayed or recorded in a display part 9. The sensitivity of the device is extremely improved in this way and the measurement of the ozone concn. over a wide range is enabled.

6. 发明专利

JPH05296968A 失效
公开(公告)号：JPH05296968A
公开(公告)日：1993-11-12
申请号：JP12994892
申请日：1992-04-23
申请人： PERMELEC ELECTRODE LTD
发明人： AOKI KOICHI , KOBAYASHI ATSUSHI , NISHIKI YOSHINORI
IPC分类号： G01N27/28 , G01N27/30
摘要： PURPOSE:To stabilize the potential of an instrument so that the instrument can make accurate measurement for a long period and can be made compact by using an insoluble solid metallic electrode as a reference electrode. CONSTITUTION:A sensor 3 is brought into contact with an ozone solution 2 flowing through a pipeline 1 and measures the concentration of the ozone solution 2. The sensor 3 is provided with a working electrode 4 reinforced with carbon, etc., reference electrode 5 made of an insoluble solid metal, such as gold, etc., and counter electrode 6 made of platinum, etc., and the electrodes 4, 5, and 6 are united in one body with a sensor fixing member 7 made of a vinyl chloride resin, etc., with their front ends being brought nearer to each other. While the electrode 5 is maintained within a fixed potential range within which the ozone solution 2 can make oxidation reduction reactions, the electrode 4 can detect the concentration of the solution 2 by generating a stable current in according to the concentration, since the counter electrode 6 is used. In addition, since the insoluble solid metal of the electrode 5 does not melt in the solution 2 and the electrode 5 has a strong strength, this instrument can be made compact.

7. 发明专利

JPH0841671A ELECTROLYTICAL REDUCTION OF DISULFIDE COMPOUND 失效
公开(公告)号：JPH0841671A
公开(公告)日：1996-02-13
申请号：JP17864994
申请日：1994-07-29
申请人： PERMELEC ELECTRODE LTD
发明人： MATSUMOTO YUKIE , KOBAYASHI ATSUSHI , YAMANE GENZO
IPC分类号： C07C319/06 , C07C323/58 , C25B3/04 , C25B11/06 , C25B11/10
摘要： PURPOSE:To electrolytically reducing a disulfide compound stably for a long time. CONSTITUTION:In a cathode chamber of an electrolytic cell separated into an anode chamber and the cathode chamber by a diaphragm, a cathode having an electrode active surface composed of >=2 kinds of alloys selected from among titanium, tantalum, niobium or zirconium or titanium, tantalum, niobium, zirconium, silver, tin, aluminum, iron, molybdenum, gold, antimony, bismuth, palladium or zinc is used. On the other hand, as the anode, and insoluble anode cathode by an electrode active material containing iridium oxide on a corrosion resistant metal composed of titanium, tantalum, niobium, zirconium or their alloy is used. Thus, the operation high in current efficiency and stable for a long time is attained.

8. 发明专利

JPH0587775A OZONE SENSOR 失效
公开(公告)号：JPH0587775A
公开(公告)日：1993-04-06
申请号：JP4445391
申请日：1991-02-15
申请人： PERMELEC ELECTRODE LTD
发明人： NISHIKI YOSHINORI , YAMADA KUNIAKI , KOBAYASHI ATSUSHI
IPC分类号： G01N27/30 , G01N27/38 , G01N27/416
摘要： PURPOSE:To obtain an ozone sensor generating no change in the detected concn. of ozone even when a core electrode is renewed when the concn. of ozone is measured using the core electrode such as a carbon reinforced electrode. CONSTITUTION:A core electrode control part 7 is arranged around the core electrode 3 of a sensor body 18 having the core electrode 3 and an opposed electrode 16 and the interval between the false plane formed to the leading end part of the control part 7 and the opening part 11 permitting the core electrode 3 to protrude is made constant. When a knock is pushed to push out the core electrode 3 from a core electrode body while the leading end of the control part 7 is brought into contact with a plane at the time of the renewal of the core electrode 3, the leading end of the pushed-out core electrode 3 comes into contact the plane to stop. Since the interval between the opening part 11 and the plane is kept constant, the surface area of the exposed core electrode 3 becomes constant and the measuring error caused by the change of the surface area can be eliminated.

9. 发明专利

JPH04131759A METHOD AND DEVICE FOR DETECTING OZONE CONCENTRATION 失效
公开(公告)号：JPH04131759A
公开(公告)日：1992-05-06
申请号：JP25373390
申请日：1990-09-21
申请人： PERMELEC ELECTRODE LTD
发明人： NISHIKI YOSHINORI , UCHIDA CHINATSU , KOBAYASHI ATSUSHI , KATO MASAAKI
IPC分类号： G01N27/416
摘要： PURPOSE:To rapidly and precisely detect ozone concentration by using a gas diffusion electrode as an ozone reducing electrode at the time of electrochemically detecting the ozone concentration in an ozone-containing gas. CONSTITUTION:When an ozone-containing gas is supplied from a gas inlet port 5, the gas reaches a gas diffusion electrode 10 through a terminal plate 12, is further transmitted by the electrode 10 and reaches the area making contact with the solid electrolyte 2 of the electrode 10 by which a catalytic particle is supported. The ozone in the gas is decomposed by oxygen to generate a current according to the decomposed quantity, whereby the ozone concentration in the gas can be detected. The oxygen produced by decomposition is returned into an acting electrode chamber 3 through the electrode 10 together with the gas other than ozone in the gas, and discharged to the outside from a discharge hole 6. Thus, the ozone concentration of the gas can be rapidly and precisely detected.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式