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51.发明授权Gas-diffusion cathode and salt water electrolytic cell using the gas-diffusion cathode 失效使用气体扩散阴极的气体扩散阴极和盐水电解槽
公开(公告)号：US5879521A
公开(公告)日：1999-03-09
申请号：US922604
申请日：1997-09-03
CPC分类号： C25B9/08 , C25B11/035 , H01M4/8626
摘要： A gas-diffusion cathode disposed in contact with an ion-exchange membrane partitioning an electrolytic cell into an anode chamber and a cathode chamber, wherein at least one guide piece is disposed in the gas-diffusion cathode and a salt water electrolytic cell using the above-described gas-diffusion cathode. By using the above-described gas-diffusion cathode for salt water electrolysis, an aqueous caustic alkali solution formed descending in the direction of gravity in the cathode changes direction of movement by contact with a guide piece, whereby the decreased electrode performance resulting from the hindrance of the supply of raw material gas and the discharge of the gas formed caused by the retention of the descending caustic alkali solution is prevented and a large-sized electrolytic cell can be used without problems generally encountered in conventional electrolytic systems.
摘要翻译： 与将电解槽隔离成阳极室和阴极室的离子交换膜接触的气体扩散用阴极，其中，至少一个引导片设置在气体扩散阴极中，使用上述盐水电解池 描述的气体扩散阴极。 通过使用上述的用于盐水电解的气体扩散阴极，在阴极重力方向上下降的苛性碱水溶液通过与引导件接触而改变运动方向，由此产生的阻碍电极性能降低 的原料气体的供给和由下降的苛性碱溶液的保留引起的气体的排放被防止，并且可以使用大尺寸的电解池，而没有常规电解系统中通常遇到的问题。
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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。
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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.
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公开(公告)号：US6117286A
公开(公告)日：2000-09-12
申请号：US173686
申请日：1998-10-16
CPC分类号： C25B9/08
摘要： A zero-gap type electrolytic cell 11 characterized as having a hydrophilic liquid-permeable material 16 interposed between an ion-exchange membrane 12 and a gas diffusion cathode 17. The reaction product passes through the liquid-permeable material and disperses toward edges of the liquid-permeable material before being withdrawn. Hence, the withdrawal direction for the target reaction product is not opposite the feed direction for the reactant gas.
摘要翻译： 零间隙型电解池11，其特征在于，具有介于离子交换膜12和气体扩散阴极17之间的亲水性透液性材料16.反应产物通过透液性物质并分散在液体的边缘 不渗透材料被取出之前。 因此，目标反应产物的排出方向与反应气体的进料方向不相反。
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公开(公告)号：US06113757A
公开(公告)日：2000-09-05
申请号：US12001
申请日：1998-01-22
摘要： An electrolytic cell for producing an alkali hydroxide using a gas diffusion cathode. A moistened oxygen-containing gas is uniformly supplied to the surface of the gas diffusion cathode by means of a gas distributing mechanism, such as at least one gas diffuser pipe having a plurality of openings facing the cathode surface.
摘要翻译： 一种使用气体扩散阴极生产碱性氢氧化物的电解槽。 润湿的含氧气体通过诸如至少一个具有面向阴极表面的多个开口的气体扩散管的气体分配机构均匀地供应到气体扩散阴极的表面。
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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。
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57.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。
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公开(公告)号：US5290406A
公开(公告)日：1994-03-01
申请号：US899306
申请日：1992-06-16
CPC分类号： C02F1/4672 , C25B1/13 , C02F1/78 , Y02E60/366
摘要： A method for producing ozone which comprises electrolyzing water using a fluororesin-type ion-exchange membrane as a solid electrolyte thereby to generate an ozone-containing gas, and cooling the gas thereby to remove a fluorine-containing substance present in the gas generated.
摘要翻译： 一种生产臭氧的方法，其包括使用氟树脂型离子交换膜作为固体电解质电解水，从而产生含臭氧气体，并冷却气体，从而除去所产生的气体中存在的含氟物质。
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公开(公告)号：US5246556A
公开(公告)日：1993-09-21
申请号：US610663
申请日：1990-11-08
申请人： Isao Sawamoto , Yoshinori Nishiki
发明人： Isao Sawamoto , Yoshinori Nishiki
CPC分类号： C02F1/78 , C02F2201/782
摘要： A process for producing high concentration ozone water, which comprises contacting an ozone-containing gas with fine droplets of water to dissolve ozone in the ozone-containing gas into the fine droplets of water.
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60.发明授权Electrolytic ozonizer and method of decomposing ozone-containing waste gas using said ozonizer 失效电解臭氧发生器和使用所述臭氧发生器分解含臭氧废气的方法
公开(公告)号：US5180502A
公开(公告)日：1993-01-19
申请号：US701014
申请日：1991-05-13
IPC分类号： B01D53/86
CPC分类号： B01D53/8675
摘要： The present invention is directed toward an electrolytic ozonier for treating ozone-containing waste gas and a method of treating ozone-containing waste gas using the ozonier, wherein the method includes evolving oxygen and ozone in an anode compartment of an electrolytic cell by electrolysis of water while evolving hydrogen in a cathode compartment; directing the evolved hydrogen into a waste gas treating section that contains a waste gas decomposition catalyst so as to convert the hydrogen to a harmless form by means of the catalyst; bringing the oxygen and ozone into contact with a medium to be treated in an ozone contactor so as to treat the medium; and subsequently directing waste gas containing oxygen and ozone produced as a result of treatment of the medium into the waste gas treating section where they are brought into either direct or indirect contact with the catalyst so that the ozone in the waste gas is converted into a harmless form.
摘要翻译： 本发明涉及一种用于处理含臭氧废气的电解臭氧化物和使用该臭氧臭氧物处理含臭氧废气的方法，其中该方法包括通过电解电解在电解槽的阳极室中放出氧气和臭氧 同时在阴极室中演化氢气; 将放出的氢气导入含有废气分解催化剂的废气处理段，以便通过催化剂将氢转化成无害形式; 使氧气和臭氧与臭氧接触器中要处理的介质接触，以便处理介质; 并且随后将由于处理介质而产生的含有氧气和臭氧的废气引导到废气处理部分中，在那里它们与催化剂直接或间接接触，使得废气中的臭氧转化为无害的 形成。
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