-
公开(公告)号：US06375827B1
公开(公告)日：2002-04-23
申请号：US09497644
申请日：2000-02-03
IPC分类号： C02F1461
CPC分类号： B01D53/326 , A61L2/035 , C02F1/46109 , C02F1/4672 , C02F1/4676 , C02F2001/46138 , C02F2101/305
摘要： An electrochemical treating apparatus comprising an electrolytic cell comprising an anode and a cathode spaced apart from the anode, the anode including an electrode material made of diamond and the cathode including an electrode material made of diamond. Also disclosed is an electrochemical treating method for electrochemically decomposing a substance contained in a gas or solution, which comprises introducing a gas or solution containing a substance to be treated into the electrolytic cell, passing an electric current through the electrolytic cell, and recovering a treated gas or solution. In a preferred embodiment, the electrolytic cell comprises an anode including an electrode material made of diamond, a cathode including an electrode material made of diamond and an ion exchange resin or an ion exchange membrane as an electrolyte disposed between the anode and the cathode.
摘要翻译： 一种电化学处理装置，包括电解槽，阳极和阴极与阳极间隔开，阳极包括由金刚石制成的电极材料，阴极包括由金刚石制成的电极材料。 还公开了一种用于电化学分解包含在气体或溶液中的物质的电化学处理方法，其包括将含有待处理物质的气体或溶液引入电解槽中，使电流通过电解槽，并回收处理过的 气体或溶液。 在优选实施例中，电解槽包括由金刚石制成的电极材料的阳极，包含由金刚石制成的电极材料的阴极和离子交换树脂或者设置在阳极和阴极之间的电解质的离子交换膜。
-
公开(公告)号：US5538585A
公开(公告)日：1996-07-23
申请号：US245562
申请日：1994-05-18
IPC分类号： C25B11/08 , C25B1/13 , C25B11/12 , H01M4/86 , H01M4/88 , H01M4/96 , H01M8/10 , B32B31/20 , B05D5/12
CPC分类号： H01M8/1004 , C25B1/13 , C25B11/12 , H01M4/885 , H01M4/8882 , H01M4/96 , H01M2300/0082 , Y02P70/56
摘要： A process for producing a gas electrode is disclosed, comprising sintering a mixture of carbon powder and a fluorine resin powder to form a sheet as a gas electrode base, coating one side of the sheet base with an organic solution prepared by dissolving a platinum group metal salt in an organic solvent capable of forming an organic complex with the metal salt, drying the coating layer, and calcining the coating layer at a temperature of from 250.degree. to 380.degree. C. in an inert atmosphere to reduce the platinum group metal oxide thereby forming a catalyst layer on the sheet base. Reduction (calcination) of the platinum group metal salt can be effected without using dangerous hydrogen gas and without being accompanied by decomposition of the fluorine resin and provides a uniform catalyst layer comprising fine platinum particles having a large surface area with a minimized thickness.
摘要翻译： 公开了一种制造气体电极的方法，包括将碳粉和氟树脂粉末的混合物烧结以形成作为气体电极基底的片材，用通过溶解铂族金属制备的有机溶液涂覆片材基底的一侧 盐在能够与金属盐形成有机配合物的有机溶剂中，干燥涂层，并在惰性气氛中在250-380℃的温度下煅烧涂层，从而减少铂族金属氧化物 在片材基材上形成催化剂层。 铂族金属盐的还原（煅烧）可以在不使用危险氢气的情况下进行而不伴随氟树脂的分解，并且提供包含具有最小厚度的具有大表面积的细铂颗粒的均匀催化剂层。
-
3.发明授权Electrolytic cell and processes for producing alkali hydroxide and hydrogen peroxide 失效电解池和碱氢氧化物和过氧化氢的制备方法
公开(公告)号：US5437771A
公开(公告)日：1995-08-01
申请号：US196442
申请日：1994-02-15
摘要： The electrolytic cell 1 for producing alkali hydroxide or hydrogen peroxide is divided into the anode compartment 3 and the cathode compartment 4 by the cation exchange membrane 2. The cathode compartment 4 is further divided by the anion exchange membrane 6 into the solution compartment 7 containing a concentrated aqueous solution of alkali hydroxide and the gas compartment accommodating the gas cathode 8. The anion exchange membrane 6 prevents the gas cathode 8 from coming into direct or indirect contact with the aqueous solution of alkali hydroxide. This leads to the extended life of the gas cathode. The above-mentioned arrangement is effective in large-sized electrolytic cells. Thus, the present invention can be applied to industrial electrolysis which has never been achieved with the conventional gas electrode.
摘要翻译： 用于生产碱金属氢氧化物或过氧化氢的电解池1通过阳离子交换膜2分成阳极室3和阴极室4.阴极室4进一步被阴离子交换膜6分成溶液室7， 碱性氢氧化物的浓缩水溶液和容纳气体阴极8的气室。阴离子交换膜6防止气体阴极8与碱金属氢氧化物水溶液直接或间接接触。 这导致气体阴极的寿命延长。 上述布置在大尺寸电解槽中是有效的。 因此，本发明可以应用于以往的气体电极从未实现的工业电解。
-
公开(公告)号：US06547947B1
公开(公告)日：2003-04-15
申请号：US09526061
申请日：2000-03-15
IPC分类号： C02F1461
CPC分类号： C02F1/4672 , C02F1/4602 , C02F1/4618 , C02F1/4674 , C02F1/722 , C02F2001/46138 , C02F2001/46157 , C02F2001/46161 , C02F2001/46166 , C02F2303/04 , C25B1/30
摘要： A method and apparatus for water treatment. The method comprises supplying an oxygen-containing gas to cathode 6 to yield hydrogen peroxide, supplying an inorganic acid to anode 5 through an acid solution addition opening 4 to yield an oxidation product, e.g., hypochlorous acid, and using both the hydrogen peroxide and oxidation product thus generated to treat a liquid to be treated. The atmosphere around the cathode surface is kept neutral to acidic due to the acidity of the coexisting oxidation product to thereby inhibit the deposition of metal hydroxides.
摘要翻译： 一种水处理方法和装置。 该方法包括向阴极6供给含氧气体以产生过氧化氢，通过酸溶液添加开口4向阳极5供应无机酸，得到氧化产物，例如次氯酸，并使用过氧化氢和氧化 因此产生用于处理待处理液体的产品。 由于共存的氧化产物的酸度，阴极表面周围的气氛保持中性至酸性，从而抑制金属氢氧化物的沉积。
-
公开(公告)号：US06296754B1
公开(公告)日：2001-10-02
申请号：US09421854
申请日：1999-10-20
申请人： Yasuki Yoshida , Setsuro Ogata , Yoshinori Nishiki , Shuji Nakamatsu , Hiroshi Inoue , Chiaki Iwakura
发明人： Yasuki Yoshida , Setsuro Ogata , Yoshinori Nishiki , Shuji Nakamatsu , Hiroshi Inoue , Chiaki Iwakura
IPC分类号： C25B100
CPC分类号： B01D53/326
摘要： A method of reducing nitrous oxide which comprises introducing nitrous oxide into a reaction chamber disposed in contact with an electrolytic chamber having an anode and a cathode comprising a hydrogen-absorbing material, the cathode serving as a diaphragm separating the reaction chamber and the electrolytic chamber, and contacting the nitrous oxide with the diaphragm to thereby continuously reduce the nitrous oxide with hydrogen atoms electrolytically generated on the cathode, absorbed by the hydrogen-absorbing material and passing through the diaphragm. The cathode preferably has catalyst comprising a platinum group metal black deposited on the side of the cathode opposite the anode. Also disclosed is an electrolytic cell for the reduction of nitrous oxide partitioned with a diaphragm into an electrolytic chamber having an anode and a reduction reaction chamber, the diaphragm comprising a hydrogen-absorbing material, and the side of the diaphragm facing the electrolytic chamber serving as a cathode.
摘要翻译： 一种还原一氧化二氮的方法，其包括将一氧化二氮引入与具有包含吸氢材料的阳极和阴极的电解室接触的反应室中，所述阴极用作分隔反应室和电解室的隔膜， 并使一氧化二氮与隔膜接触，由此在阴极上电解生成的氢原子连续地还原一氧化二氮，被氢吸收材料吸收并通过隔膜。 阴极优选具有沉积在与阳极相对的阴极侧的铂族金属黑的催化剂。 还公开了一种用于将用隔膜分隔的一氧化二氮还原成具有阳极和还原反应室的电解室的电解池，该隔膜包括吸氢材料，并且隔膜的面向电解室的侧面用作 一个阴极。
-
公开(公告)号：US5565082A
公开(公告)日：1996-10-15
申请号：US325612
申请日：1994-10-19
申请人： Shuji Nakamatsu , Yoshinori Nishiki
发明人： Shuji Nakamatsu , Yoshinori Nishiki
CPC分类号： C25B1/46
摘要： A method for brine electrolysis using a gas electrode and an electrolytic cell therefor, in which gas electrode 31 permeable to gas and liquid is arranged in cathode chamber 24 in contact with ion-exchange membrane 22. Sodium hydroxide produced on electrode substance 30 of gas electrode 31 easily penetrates the gas electrode and is recovered from the cathode chamber. No sodium hydroxide is produced within the ion-exchange membrane so that penetration of sodium hydroxide into the anode chamber is thereby prevented.
摘要翻译： 一种使用气体电极及其电解槽的盐水电解方法，其中气体和液体可透气的气体电极31设置在与离子交换膜22接触的阴极室24中。在气体电极的电极物质30上产生的氢氧化钠 31容易地穿透气体电极并从阴极室回收。 在离子交换膜内不产生氢氧化钠，从而防止氢氧化钠渗入阳极室。
-
公开(公告)号：US4935110A
公开(公告)日：1990-06-19
申请号：US276732
申请日：1988-11-28
摘要： Electrode structures of solid polymer electrolyte type for use in electrolysis are disclosed, (i) in which an adhering layer containing fine particles loaded with a .beta.-lead dioxide powder is formed on one surface of an ion-exchange membrane serving as a solid polymer electrolyte, and an electrodeposited layer of lead dioxide being formed on the surface of the adhering layer, and (ii) in which an electrodeposited layer of lead dioxide having dispersed therein fine particles loaded with a .beta.-lead dioxide powder is formed electrolytically between an ion-exchange membrane serving as a solid polymer electrolyte and a current collector positioned close to the ion-exchange membrane, to thereby form a unitary assembly. The present electrode structures are useful for production of ozone by electrolysis of water and for production of peroxides by electrolysis of aqueous solutions.
-
公开(公告)号：US5900127A
公开(公告)日：1999-05-04
申请号：US825866
申请日：1997-04-02
申请人： Masamori Iida , Yoshinori Nishiki , Takayuki Shimamune , Setsuro Ogata , Masashi Tanaka , Shuhei Wakita , Shun Takahashi
发明人： Masamori Iida , Yoshinori Nishiki , Takayuki Shimamune , Setsuro Ogata , Masashi Tanaka , Shuhei Wakita , Shun Takahashi
CPC分类号： C25B11/0478 , C02F1/46109 , C02F1/4618 , C02F1/722 , C02F1/78 , C02F2001/46138 , C02F2001/46161 , C02F2201/4611 , C02F2201/46115 , C02F2201/46195
摘要： An electrode for electrolysis comprising an electrode base material and an electrode substance having an electrically conductive diamond structure covering the surface of the electrode base material. The electrode substance having an electrically conductive diamond structure may be a diamond containing an impurity selected from boron, phosphorus and graphite. Alternatively, the electrode substance having an electrically conductive diamond structure may comprise a composite of a diamond and an electrically conductive material. In a preferred embodiment, the electrode further comprises an interlayer comprising at least one of the carbide of a valve metal and silicon carbide disposed between the electrode base material and the electrode substance having an electrically conductive diamond structure. Also disclosed is an electrolytic cell having two chambers including an anode chamber and a cathode chamber partitioned by an ion-exchange membrane. At least one of the anode placed in the anode chamber and a cathode placed in the cathode chamber is an electrode comprising an electrode base material and an electrode substance having an electrically conductive diamond structure covering the surface of the electrode base material. An electrolytic cell having three chambers is also disclosed, including an anode chamber, an intermediate chamber and a cathode chamber partitioned by ion-exchange membranes. At least one of an anode placed in the anode chamber and a cathode placed in the cathode chamber is an electrode comprising an electrode base material and an electrode substance having an electrically conductive diamond structure covering the surface of the electrode base material.
摘要翻译： 一种电解用电极，其特征在于，具有电极基材和覆盖所述电极基材表面的导电性金刚石结构的电极物质。 具有导电金刚石结构的电极物质可以是含有选自硼，磷和石墨的杂质的金刚石。 或者，具有导电金刚石结构的电极物质可以包括金刚石和导电材料的复合物。 在优选实施例中，电极还包括中间层，其包括设置在电极基材和具有导电金刚石结构的电极物质之间的阀金属和碳化硅的碳化物中的至少一种。 还公开了一种具有两个腔室的电解池，该腔室包括由离子交换膜隔开的阳极室和阴极室。 放置在阳极室中的阳极中的至少一个和放置在阴极室中的阴极是包括电极基材和覆盖电极基材表面的导电金刚石结构的电极物质的电极。 还公开了一种具有三个室的电解池，包括由离子交换膜分隔的阳极室，中间室和阴极室。 放置在阳极室中的阳极中的至少一个和放置在阴极室中的阴极是包括电极基材的电极和具有覆盖电极母材表面的导电金刚石结构的电极物质。
-
公开(公告)号：US5827412A
公开(公告)日：1998-10-27
申请号：US881361
申请日：1997-06-24
CPC分类号： C25B1/46 , C25B11/035
摘要： A liquid-permeable gas-diffusion cathode adapted for caustic soda electrolysis in contact with an ion-exchange membrane partitioning an electrolytic cell into an anode chamber and a cathode gas chamber. Plural horizontal concave grooves and/or convex portions are provided in an interval with one another on the surface of the gas-diffusion cathode facing the gas chamber. Plural vertical concave grooves may also be provided in an interval on the surface of the cathode crossing the horizontal grooves and/or convex portions. Aqueous caustic soda solution thus formed flows downward along the grooves, etc., without covering other portions of the cathode surface, and is easily released therefrom without clogging perforations in the gas-diffusion layer of the cathode.
摘要翻译： 一种液体可渗透的气体扩散阴极，其适于与将电解槽分隔成阳极室和阴极气体室的离子交换膜接触的苛性钠电解。 在面对气室的气体扩散阴极的表面上，间隔地设有多个水平凹槽和/或凸部。 也可以在与水平槽和/或凸部交叉的阴极表面上的间隔内设置多个垂直凹槽。 这样形成的碱性苛性钠溶液不会覆盖阴极表面的其它部分而沿着凹槽等向下流动，并且容易地从阴极的气体扩散层中堵塞穿孔而释放。
-
公开(公告)号：US5536379A
公开(公告)日：1996-07-16
申请号：US416366
申请日：1995-04-04
CPC分类号： C25B11/035 , H01M4/86
摘要： A gas diffusion electrode comprising a water permeable gas diffusion and reaction layer and a porous and electrically conductive electrode current collector having a water repellency bonded to the gas diffusion and reaction layer.
摘要翻译： 一种气体扩散电极，其特征在于，具有透水性气体扩散反应层和具有与气体扩散反应层接合的斥水性的多孔导电性电极集电体。
-
-
-
-
-
-
-
-
-
搜索结果
86 条记录 (耗时 0.023 秒)
