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公开(公告)号：US3969217A
公开(公告)日：1976-07-13
申请号：US513009
申请日：1974-10-07
CPC分类号： C25B11/0484
摘要： An improved electrode, useful as an anode for the electrolysis of brines comprises an electrically conductive substrate having adhered thereto and extending over at least a portion of the surface thereof, a coating of mixed oxides comprising about 10 to about 80 mole percent indium oxide and about 10 to about 90 mole percent of a platinum group metal oxide. Up to about 20 mole percent of tin oxide may be incorporated in the coating to lower the electrical resistivity thereof.
摘要翻译： 可用作电解盐水的阳极的改进的电极包括粘附到其上并在其表面的至少一部分上延伸的导电基底，包含约10至约80摩尔％的氧化铟和约 10至约90摩尔％的铂族金属氧化物。 可以在涂层中加入高达约20摩尔％的氧化锡以降低其电阻率。
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公开(公告)号：US4012296A
公开(公告)日：1977-03-15
申请号：US627428
申请日：1975-10-30
CPC分类号： C25B1/46 , C25B11/0484
摘要： An electrode, for use in electrolytic processes, especially as an anode for use in the electrolysis of aqueous solutions of alkali metal halides, comprises a valve metal substrate coated on at least a portion of the surface thereof with a mixed oxide of hafnium and ruthenium wherein the molar ratio of ruthenium:hafnium is from about 0.25 to about 4.0.
摘要翻译： 用于电解工艺的电极，特别是用作电解碱金属卤化物水溶液的阳极，包括在其表面的至少一部分上涂覆有铪和钌的混合氧化物的阀金属基底，其中 钌：铪的摩尔比为约0.25至约4.0。
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公开(公告)号：US3950240A
公开(公告)日：1976-04-13
申请号：US574477
申请日：1975-05-05
CPC分类号： C25B11/0484
摘要： An electrode useful as an anode for the electrolysis of aqueous solutions of ionizable chemical compounds, and especially the electrolysis of brines comprises an electroconductive substrate, such as a valve metal having a coating thereon of electroconductive tin oxide containing about 0.1 to about 15 mole percent of niobium based on the moles of tin. An additional electrocatalytic phase may be present as a minor component of the tin oxide coating and/or as a coating thereon.
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公开(公告)号：US5639422A
公开(公告)日：1997-06-17
申请号：US691476
申请日：1996-08-02
CPC分类号： C01B7/07
摘要： Disclosed is a method of reducing the corrosion of a carbon steel reboiler in which a reboiler fluid containing nitrogen trichloride is heated to decompose the nitrogen trichloride. About 1 to about 100 ppm, based on the reboiler fluid weight, of a source of iodine, is added to the reboiler.
摘要翻译： 公开了一种减少碳钢再沸器的腐蚀的方法，其中加热含有三氯化碳的再沸器流体以分解三氯化氮。 将约1至约100ppm（基于再沸器流体重量）的碘源加入到再沸器中。
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公开(公告)号：US5082567A
公开(公告)日：1992-01-21
申请号：US610626
申请日：1990-11-08
IPC分类号： B01J49/00
CPC分类号： B01J49/0008
摘要： Disclosed is a method of regenerating a cationic exchange resin that has been exposed to chlorate ion. The resin is treated with an acidic regenerating solution that contains sulfite ion in an amount at least stoichiometric with the amount of chlorate remaining on the resin. The resin can either be rinsed with water first and then contacted with an acidic regenerating solution containing sulfite, or the resin can be washed with acidic water containing sulfite ion and then treated with an acidic regenerating solution.
摘要翻译： 公开了一种已经暴露于氯酸根离子的阳离子交换树脂的再生方法。 该树脂用酸性再生溶液处理，该酸性再生溶液含有至少化学计量的亚硫酸根离子与树脂上剩余的氯酸盐的量。 首先用水冲洗树脂，然后与含有亚硫酸盐的酸性再生溶液接触，或者用含有亚硫酸盐离子的酸性水洗涤树脂，然后用酸性再生溶液处理。
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公开(公告)号：US5425856A
公开(公告)日：1995-06-20
申请号：US233577
申请日：1994-04-26
摘要： Disclosed is a method of making an alkali metal alcoholate by performing the reaction ##STR1## where M is sodium or potassium, ROH is methanol, ethanol, propanol, or butanol, and D.C. is direct current. The process can be used to make sodium methylate in a modified Hybinette cell having a separator in between a cathode compartment and an anode compartment. The cell is filled with methanol and a solution of sodium chloride in methanol is added to the cathode compartment. When direct current is passed between the cathode and the anode, a solution of sodium methylate in methanol collects in the anode compartment. The solution of sodium methylate can be continuously removed and cooled to separate any sodium chloride in it which can be recycled back to the cathode compartment. Alternatively, the sodium chloride can be added to the anode compartment while an inert salt is added to the cathode compartment. The process can also be performed in a three-compartment cell.
摘要翻译： 公开了通过进行M为钠或钾，ROH为甲醇，乙醇，丙醇或丁醇的反应“IMAGE”制备碱金属醇化物的方法，直流D.C是直流。 该方法可用于在阴极室和阳极室之间的具有隔膜的改良的Hybinette电池中制备甲基化钠。 将电池充满甲醇，并将氯化钠在甲醇中的溶液加入阴极室。 当直接电流在阴极和阳极之间通过时，甲醇钠在甲醇中的溶液收集在阳极室中。 可以连续除去甲醇钠溶液并冷却，分离其中可以再循环回阴极室的任何氯化钠。 或者，可以将氯化钠加入到阳极室中，同时将惰性盐加入到阴极室中。 该方法也可以在三室细胞中进行。
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公开(公告)号：US4456518A
公开(公告)日：1984-06-26
申请号：US332908
申请日：1981-12-21
申请人： Tilak V. Bommaraju
发明人： Tilak V. Bommaraju
CPC分类号： C25B1/265 , C25B11/0478
摘要： Cathodes comprising a conductive metal substrate, such as ferrous metal or titanium, having thereon an intermediate protective layer and an overcoating of a mixture of platinum and another noble metal are prepared. These cathodes function in aqueous alkali metal salt solution electrolytic cells or alkali metal halate electrolytic cells to reduce the cathode overvoltage in comparison with conventional ferrous metal electrodes.
摘要翻译： 制备包括导电金属基底（例如黑色金属或钛）的阴极，其上具有中间保护层和铂和另一种贵金属的混合物的外涂层。 这些阴极在碱性金属盐水溶液电解池或碱金属卤化物电解池中起作用，与传统的黑色金属电极相比，可以降低阴极过电压。
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公开(公告)号：US6156185A
公开(公告)日：2000-12-05
申请号：US330616
申请日：1999-06-11
申请人： Chao-Peng Chen , Tilak V. Bommaraju
发明人： Chao-Peng Chen , Tilak V. Bommaraju
CPC分类号： C25B11/0484 , C25B11/00
摘要： Disclosed is a method of reactivating a deactivated anode that has a coating of a noble metal or noble metal oxide on a substrate. A coating of a noble metal is deposited on the anode electrolessly. The noble metal in the deposited coating can be platinum, palladium, iridium, rhodium, ruthenium, osmium, or a mixture thereof.
摘要翻译： 公开了一种在基材上还原具有贵金属或贵金属氧化物涂层的失活阳极的方法。 在阳极上无电镀沉积贵金属涂层。 沉积涂层中的贵金属可以是铂，钯，铱，铑，钌，锇或它们的混合物。
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公开(公告)号：US5108722A
公开(公告)日：1992-04-28
申请号：US572828
申请日：1990-08-27
摘要： Disclosed is a method of removing sulfate ion from an aqueous sodium chlorate liquor. A crystallization temperature is selected between about -15.degree. and about 0.degree. C. and the maximum concentration of sodium chlorate that is soluble in the liquor at that temperature is determined. The liquor is diluted so that the concentration of sodium chlorate in the liquor is less than that miximum concentration and the liquor is cooled to that temperature so that the sulfate ion in the liquor crystallizes as sodium sulfate decahydrate but the sodium chlorate does not crystallize.
摘要翻译： 公开了从氯酸钠水溶液中除去硫酸根离子的方法。 选择约-15℃至约0℃的结晶温度，并确定在该温度下可溶于液体中的氯酸钠的最大浓度。 将液体稀释，使得液体中氯酸钠的浓度小于该混合物的浓度，并将液体冷却至该温度，使得液体中的硫酸根离子以十水合硫酸钠结晶，但氯酸钠不结晶。
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公开(公告)号：US4470890A
公开(公告)日：1984-09-11
申请号：US332907
申请日：1981-12-21
摘要： A method is provided for preventing the dissolution of transition metal-based cathodes used in chlor-alkali diaphragm cells by adding a small amount of a corrosion inhibitor, such as sodium silicate or trisodium phosphate, to the electrolytic solution during periods of interrupted current flow to the cell. The corrosion inhibitor is adsorbed on the surface of the cathode and forms an adherent protective film on the cathode. This film protects the cathode by preventing dissolution of the transition metal in the cathode coating due to oxidation by sodium hypochlorite.
摘要翻译： 提供一种方法，用于通过在电流中断期间向电解液中加入少量的腐蚀抑制剂如硅酸钠或磷酸三钠来防止氯碱隔膜电池中使用的过渡金属基阴极的溶解 细胞。 腐蚀抑制剂被吸附在阴极表面，并在阴极上形成粘附保护膜。 该膜通过防止由于次氯酸钠的氧化而使阴极涂层中的过渡金属溶解而保护阴极。
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