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1. 发明专利

JPH10249350A CMPO DECOMPOSING METHOD 失效
公开(公告)号：JPH10249350A
公开(公告)日：1998-09-22
申请号：JP6432597
申请日：1997-03-18
申请人： DORYOKURO KAKUNENRYO , MITSUI SHIPBUILDING ENG , CHLORINE ENG CORP LTD
发明人： OZAWA MASAKI , TANAKA YASUMASA , HOSHINO YOSHIHIRO , TANUMA HIROYUKI , KAWAKAMI CHISAKO , KISHI TAKEMICHI
IPC分类号： A62D101/26 , C02F1/461 , C02F1/467 , G21F9/06
摘要： PROBLEM TO BE SOLVED: To rapidly decompose CMPO (octyl(phenyl)-N,N- diisocutylcarbamoilmethylphsophine oxide) safely, surely and by a mild condition. SOLUTION: The CMPO-containing matter is emulsified in an electrolyte containing an oxidation accelerating agent (silver ion) by an emulsifying machine of an emulsifying tank 6, and the electrolyte is fed to an anode chamber, and an electrolytic oxidation reaction is executed by energizing. An electrolysis is accelerated since a surface area of the CMPO containing with the electrolyte is enlarged by emulsifying the CMPO-containing matter. Since a sufficient CMPO decomposition is not attained by passing only once the electrolyte through an electrolytic cell, a batch type oxidizing method is adopted, and the anode liq. is circulated between the anode chamber, a thermostatic bath 7a and the emulsifying tank 6 by using a circulating pump 3a, and the electrolysis is continued in a state in which the CMPO-containing matter is always emulsified in the electrolyte. The cathode liq. is circuilaed between a cathode chamber and the thermostatic bath 7b by using the circulating pump 3b. And in the anode 4 and the cathode 5 is the electrical cell 1, a supplied current is controlled by a rectifier 8.

2. 发明专利

JP2000227497A SEPARATION RECOVERY METHOD OF PLATINUM GROUP ELEMENT, TECHNETIUM, TELLURIUM AND SELENIUM 失效
公开(公告)号：JP2000227497A
公开(公告)日：2000-08-15
申请号：JP2699599
申请日：1999-02-04
申请人： JAPAN NUCLEAR CYCLE DEV INST , CHLORINE ENG CORP LTD
发明人： OZAWA MASAKI , SANO YUICHI , TANAKA YASUMASA , KISHI TAKEMICHI , KATO AKIRA
IPC分类号： G21C19/46 , G21F9/06 , G21F9/10
摘要： PROBLEM TO BE SOLVED: To provide a method for separating and recovering platinum group elements, technetium, tellurium and selenium selectively with a high recovery rate, from nitric acid dissolved liquid treated in a reprocessing plant of spent nuclear fuel, or from radioactive process waste liquid produced in a process. SOLUTION: Nitric acid solution containing one kind or two or more kinds of elements selected from a group comprising platinum group elements other than palladium, technetium, tellurium and selenium is electrolyzed with a constant current in the coexistence of palladium, and the platinum group elements, technetium, tellurium and selenium are separated and recovered by electrolytic reductive deposition of the elements on a cathode. The reductive deposition can be accelerated by dividing and adding palladium additionally.

3. 发明专利

JPH08296079A ACTIVE CATHODE AND ITS PRODUCTION 失效
公开(公告)号：JPH08296079A
公开(公告)日：1996-11-12
申请号：JP12591195
申请日：1995-04-26
申请人： CHLORINE ENG CORP LTD
发明人： KISHI TAKEMICHI , ARIMOTO OSAMU
IPC分类号： C23C2/04 , C23C18/31 , C23C28/02 , C25B11/04 , C25B11/06 , C25B11/08
摘要： PURPOSE: To produce an active cathode capable of stably keeping a sufficiently low hydrogen overvoltage, hardly causing contamination of an ion exchange membrane when it is used in an electrolytic cell and preventing degradation or ignition due to oxidation. CONSTITUTION: In the active cathode, a first layer consisting essentially of nickel or cobalt is formed on a metallic base body and a second layer consisting essentially of platinum or ruthenium is formed on the first layer. It is preferable that the first layer is formed by incorporating a Raney nickel, and the second layer has a vast cathodic actuating area. Further it is preferable that the first layer is made of nickel oxide or cobalt oxide, and the second layer has the vast cathodic actuating area consisting of fine platinum particles or ruthenium particles.

4. 发明专利

JPH0835089A ANODE FOR PRODUCING HYPOCHLORITE AND ITS PRODUCTION 失效
公开(公告)号：JPH0835089A
公开(公告)日：1996-02-06
申请号：JP17068494
申请日：1994-07-22
申请人： CHLORINE ENG CORP LTD
发明人： ARIMOTO OSAMU , KISHI TAKEMICHI
IPC分类号： C25B11/10 , C25B1/26
摘要： PURPOSE:To form a high concn. hypochlorite ion at a high current efficiency by incorporating the oxide of cobalt, lanthanum or the like in a coating film composed of the oxide of palladium, ruthenium or titanium and platinum in an electrode having an electrode activated coating film on a conductive base body. CONSTITUTION:The anode for producing hypochlorite has the coating film containing at least one or more kind of the metal oxide of cobalt, lanthanum, cerium and yttrium with palladium oxide of 10-45, ruthenium oxide of 15-45, titanium dioxide of 10-40, platinum of 10-20 by wt.%. The anode is produced by preparing a slurry like coating solution obtained by dispersing palladium oxide and the oxides of at least one or more kind of cobalt, lanthanum, cerium and yttrium in a solution containing each compound of ruthenium, titanium and platinum, applying the coating solution on the electrode base body and firing in an oxygen containing atmosphere.

5. 发明专利

JPH0833830A METHOD FOR ELECTRODIALYTICALLY REFINING AQUEOUS IRON ION-CONTAINING SOLUTION 失效
公开(公告)号：JPH0833830A
公开(公告)日：1996-02-06
申请号：JP19182694
申请日：1994-07-22
申请人： CHLORINE ENG CORP LTD
发明人： KISHI TAKEMICHI
IPC分类号： B01D61/44 , B01D61/52 , C23G1/36
摘要： PURPOSE:To stably refine an aq. iron ion-contg. soln. such as waste pickling soln. by electrodialysis for a long period while preventing the deterioration of an ion- exchange membrane by pressurizing the cathode compartment and conducting electrodialysis at a pressure higher than that in an anode compartment. CONSTITUTION:This electrolytic cell consists of an anode compartment and a cathode compartment, the anode compartment and the cathode compartment are isolated from each other with an ion-exchange membrane, an aq. iron ion-contg. soln. is introduced into the anode compartment as an anolyte, and an aq. soln. contg. an inorg. salt (e.g. Na2SO4) and a PH buffer is charged into the cathode compartment as a catholyte. The cathode compartment is pressurized, and electrodialysis is conducted at a pressure higher than that in the cathode compartment. Consequently, the cation- exchange membrane is not approached to the cathode, the stagnation of the catholyte is prevented, the trouble such as the scorching of the cation-exchange membrane causing deposition of magnetite on the ion-exchange membrane is prevented, and the waste pickling soln. contg. iron ion is stably operated for a long period as compared with the conventional process.

6. 发明专利

JPH07316898A REMOVING METHOD OF SULFATE ION IN CHROMIUM PLATING SOLUTION 失效
公开(公告)号：JPH07316898A
公开(公告)日：1995-12-05
申请号：JP12978394
申请日：1994-05-18
申请人： CHLORINE ENG CORP LTD
发明人： KISHI TAKEMICHI
IPC分类号： C25D21/22
摘要： PURPOSE:To provide a removing method of sulfate ion in a chromium plating solution, which is simple in the posttreating without precipitating barium sulfate into the chromium plating solution. CONSTITUTION:Sulfate ion in the chromium plating solution is removed by allowing the chromium plating solution containing sulfate ion to contact with a barium containing perfluoro-based cation exchange resin. The barium containing perfluoro-based cation exchange resin is preferably a perfluoro-based cation exchange resin which is a barium type formed by replacing ion exchange group with barium or a barium carrying type formed by carrying barium chromate.

7. 发明专利

JP2010034521A Cleaning method by electrolytic sulfuric acid and method of manufacturing semiconductor device 有权
标题翻译：电解硫酸的清洗方法及制造半导体器件的方法
公开(公告)号：JP2010034521A
公开(公告)日：2010-02-12
申请号：JP2009139821
申请日：2009-06-11
申请人： Chlorine Eng Corp Ltd , Shibaura Mechatronics Corp , Toshiba Corp , クロリンエンジニアズ株式会社 , 株式会社東芝 , 芝浦メカトロニクス株式会社
发明人： DOMON HIROKI , OGAWA YUSUKE , KATO MASAAKI , KISHI TAKEMICHI , HAYAMIZU NAOYA , TAYA MAKIKO , KUROKAWA SADAAKI , KOBAYASHI NOBUO
IPC分类号： H01L21/304 , C25B1/30 , C25B11/12 , H01L21/027
CPC分类号： C11D11/007 , C11D7/08 , C11D11/0047 , C25B1/285 , G03F7/423 , H01L21/31133
摘要： PROBLEM TO BE SOLVED: To provide a cleaning method by electrolytic sulfuric acid improved in the current efficiency for producing the electrolytic sulfuric acid, and enhancing cleaning/peeling efficiency of resist or the like at the same time; and to provide a method of manufacturing a semiconductor device. SOLUTION: The cleaning method by electrolytic sulfuric acid includes steps of: supplying a first sulfuric acid solution from outside to a sulfuric acid electrolysis tank 1 to perform electrolysis to produce a first electrolytic sulfuric acid containing an oxidizing substance in the sulfuric acid electrolysis tank 1; supplying a second sulfuric acid solution, which is higher in concentration than the first sulfuric acid solution previously supplied, from the outside to the sulfuric acid electrolysis tank 1 to mix the second sulfuric acid with the first electrolytic sulfuric acid in the sulfuric acid electrolysis tank 1, and performing electrolysis to produce a cleaning solution comprising a second electrolytic sulfuric acid containing sulfuric acid and an oxidizing substance in the sulfuric acid electrolysis tank 1; and performing a cleaning treatment for a cleaning object 23 by using the cleaning solution. The method of manufacturing a semiconductor device using the cleaning method is also provided. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供电解硫酸的清洗方法，其提高电解硫酸的生产效率，同时提高抗蚀剂等的清洗/剥离效率; 并提供一种制造半导体器件的方法。解决方案：电解硫酸的清洗方法包括以下步骤：将第一硫酸溶液从外部供给至硫酸电解槽1，以进行电解以在硫酸电解中产生含有氧化物质的第一电解硫酸罐1; 从外部向硫酸电解槽1供给浓度高于先前供给的第一硫酸溶液的第二硫酸溶液，以将硫酸电解槽1中的第二硫酸与第一电解硫酸混合并且在硫酸电解槽1中进行电解以产生包含硫酸和氧化物质的第二电解硫酸的清洗溶液; 并通过使用清洁溶液对清洁对象23进行清洁处理。还提供了使用清洁方法制造半导体器件的方法。版权所有（C）2010，JPO＆INPIT

8. 发明专利

JP2005126760A Ion exchange membrane electrolysis method 有权
标题翻译：离子交换膜电解法
公开(公告)号：JP2005126760A
公开(公告)日：2005-05-19
申请号：JP2003362982
申请日：2003-10-23
申请人： Chlorine Eng Corp Ltd , クロリンエンジニアズ株式会社
发明人： HASHIMOTO TERUMI , ARIMOTO OSAMU , KISHI TAKEMICHI
IPC分类号： C02F1/46 , C25B9/00 , C25B15/00
摘要： PROBLEM TO BE SOLVED: To prevent the damage at the start of operating an ion exchange membrane fitted to an electrolytic cell in an ion exchange membrane electrolysis method.
SOLUTION: In the ion exchange membrane electrolysis method, an ion exchange membrane is fitted to an ion exchange membrane electrolytic cell, thereafter, an alkali metal chloride aqueous solution having a concentration and a temperature in the range exhibiting an elongation percentage of -1.5 to 0% compared with the elongation in pure water at 25°C of the ion exchange membrane is filled into an anode chamber, and, after the completion of the change in the ion exchange membrane, the electrolytic liquid is exchanged with that having a concentration and a temperature at the time of regular operation.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了防止在离子交换膜电解方法中操作安装在电解槽上的离子交换膜开始时的损伤。解决方案：在离子交换膜电解方法中，将离子交换膜装配到离子交换膜电解槽中，然后将浓度和温度在伸长率的范围内的碱金属氯化物水溶液与离子交换膜的25℃下的纯水中的伸长率相比为1.5〜0％，填充到阳极室中，在离子交换膜的变化完成后，将电解液与具有浓度和正常运行时的温度。版权所有（C）2005，JPO＆NCIPI

9. 发明专利

JP2004099914A Method for producing peroxodisulfate 审中-公开
公开(公告)号：JP2004099914A
公开(公告)日：2004-04-02
申请号：JP2002259218
申请日：2002-09-04
申请人： Chlorine Eng Corp Ltd , Permelec Electrode Ltd , クロリンエンジニアズ株式会社 , ペルメレック電極株式会社
发明人： KISHI TAKEMICHI , TANAKA HOZUMI , NISHIKI YOSHINORI , SEKIMOTO MASAO , WAKITA SHUHEI , FURUTA TSUNETO
IPC分类号： C01B15/08 , C25B1/28 , C25B11/12
摘要： PROBLEM TO BE SOLVED: To solve the problem that, when a no-diaphragm electrolytic cell with a simple structure is used for producing peroxodisulfate from sulfuric acid ions and/or hydrogen sulfate ions by electrolysis as the conventional method, peroxodisulfate as a product is decomposed by cathode reduction, and current efficiency declines.
SOLUTION: An electrolytic solution 7 comprising sulfuric acid ions and/or hydrogen sulfate ions is electrolyzed in a non-diaphragm electrolytic cell 1 to produce peroxodisulfate. In this case, hexavalent chromium ions are dissolved in the electrolytic solution, so that the reducing decomposition of the resultant peroxodisulfate is suppressed by the hexavalent chromium ions to realize high current efficiency.
COPYRIGHT: (C)2004,JPO

10. 发明专利

JPH1161445A ELECTROLYTIC TREATMENT OF IRON CHLORIDE AQUEOUS SOLUTION 失效
公开(公告)号：JPH1161445A
公开(公告)日：1999-03-05
申请号：JP22567697
申请日：1997-08-06
申请人： ASTEC IRIE KK , CHLORINE ENG CORP LTD
发明人： KISHI TAKEMICHI , SHINOMIYA YOSHITSUGU , ISHITA TSUTOMU , ASAKUMA TAKAAKI , MATSUMOTO HIROYUKI
IPC分类号： C01G49/10 , C23F1/46
摘要： PROBLEM TO BE SOLVED: To provide an electrolytic treatment capable of efficiently recovering chlorine ions in an iron chloride aq. solution and performing the electrolytic treatment at a low electric power cost. SOLUTION: This electrolytic treatment comprises: supplying a first iron chloride aq. solution to the anode chamber 12 of an electrolytic equipment 10 having an electrolytic tank 10a provided with an anode chamber 12 and a cathode chamber 13, both of which are separated from each other with a diaphragm 11, to oxidize ferrous iron ions in the first iron chloride aq. solution to ferric ions; and also supplying a second iron chloride aq. solution to the cathode chamber 13 of the electrolytic equipment 10 to reduce the ferric ions in the second iron chloride aq. solution to ferrous ions. In the treatment, the ferrous iron concn. of the first iron chloride aq. solution to be supplied to the anode chamber 12 is controlled so as to inhibit the formation of gaseous chlorine, and also, electrolytic conditions including electrolytic solution temp. and electrolytic current density are controlled so as to inhibit the deposition of metal on a cathode 17 placed within the cathode chamber 13.

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