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1.发明授权
公开(公告)号：US4539083A
公开(公告)日：1985-09-03
申请号：US634523
申请日：1984-07-26
申请人： Yasushi Samejima , Minoru Shiga , Toshiji Kano , Takamichi Kishi
发明人： Yasushi Samejima , Minoru Shiga , Toshiji Kano , Takamichi Kishi
摘要： Disclosed is a method for preventing a low hydrogen overvoltage cathode from degradation in activity characterized by adding a reducing agent to a cathode compartment of an electrolytic cell which electrolysis an aqueous alkali metal halide solution. According to the invention, no degradation takes place even after repeated shutdown of operation.
摘要翻译： 公开了一种防止低氢过电压阴极的活性降低的方法，其特征在于向电解池中的碱金属卤化物水溶液电解电解槽的阴极室添加还原剂。 根据本发明，即使在重复关闭操作之后也不会发生劣化。
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公开(公告)号：US4643808A
公开(公告)日：1987-02-17
申请号：US657545
申请日：1984-10-04
申请人： Yasushi Samejima , Minoru Shiga , Toshiji Kano , Takamichi Kishi
发明人： Yasushi Samejima , Minoru Shiga , Toshiji Kano , Takamichi Kishi
摘要： A method for controlling chlorates in an aqueous alkali metal hydroxide liquor produced by an ion exchange membrane electrolysis is provided, which comprises adding a reducing agent to brine to keep the concentration of chlorates to a specified value or less. The present invention provides an alkali metal hydroxide liquor with low content of chlorates.
摘要翻译： 提供了一种通过离子交换膜电解产生的碱金属氢氧化物水溶液中氯酸盐的控制方法，其包括向盐水中加入还原剂以将氯酸盐的浓度保持在规定值以下。 本发明提供具有低含量氯酸盐的碱金属氢氧化物液体。
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3.发明授权Method for removing sulfate ions from aqueous solution of alkali metal chloride 失效从碱性金属氯化物水溶液中除去硫酸离子的方法
公开(公告)号：US5071563A
公开(公告)日：1991-12-10
申请号：US606270
申请日：1990-10-31
申请人： Minoru Shiga , Toshiji Kano , Takamichi Kishi
发明人： Minoru Shiga , Toshiji Kano , Takamichi Kishi
CPC分类号： C01D3/16
摘要： A method for removing sulfate ions from an aqueous solution of an alkali metal chloride is disclosed, in which the aqueous solution of the alkali metal chloride containing sulfate ions and zirconium hydrous oxide are brought into contact with each other in a slurry form under acidic conditions to thereby cause the sulfate ions to be adsorbed to the zirconium hydrous oxide by an ion exchange reaction, the zirconium hydrous oxide adsorbing sulfate ions is separated from the aqueous solution and then dispersed in another aqueous liquid to thereby cause it to react with an alkali so as to cause sulfate ions to be desorbed into the aqueous liquid. According to this method, adsorption and desorption take place rapidly and efficiently.
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公开(公告)号：US4568433A
公开(公告)日：1986-02-04
申请号：US649570
申请日：1984-09-12
申请人： Yasushi Samejima , Minoru Shiga , Toshiji Kano , Kiyoshi Yamada
发明人： Yasushi Samejima , Minoru Shiga , Toshiji Kano , Kiyoshi Yamada
摘要： An electrolytic process using a horizontal electrolytic cell partitioned by a cation exchange membrane into an anode compartment and a cathode compartment is disclosed which is characterized by supplying into the cathode compartment catholyte liquor at a flow rate satisfying the equation;Y.gtoreq.9 log.sub.10 X+11wherein Y is initial linear velocity (cm/sec) of the catholyte liquor containing no cathode gas or containing cathode gas in an extremely small amount, and X is length (m) of a passageway of the catholyte liquor in the cathode compartment.
摘要翻译： 公开了一种使用由阳离子交换膜分隔成阳极室和阴极室的水平电解槽的电解方法，其特征在于以满足该方程式的流量供入阴极室阴极液; Y> / = 9 log 10X + 11其中，Y是不含阴极气体或含有阴极气体的阴极电解液的初始线速度（cm / sec），X是阴极电解液通道的长度（m） 阴极室中的液体。
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5.发明授权Electrolytic process of an aqueous alkali metal halide solution and electrolytic cell used therefor 失效碱金属卤化物水溶液和用于其的电解池的电解过程
公开(公告)号：US4586994A
公开(公告)日：1986-05-06
申请号：US558661
申请日：1983-12-06
摘要： Disclosed is an electrolytic process using a horizontal type cation exchange membrane electrolytic cell in which catholyte liquor is supplied into a cathode compartment with initial linear velocity of at least 8 cm/sec and gas content of at most 0.6 at a catholyte liquor outlet. Also disclosed is an electrolytic cell used for the foregoing process. The invention enables not only conversion of a mercury electrolytic cell to a cation exchange membrane electrolytic cell with low cost, but the long-term and stable operation.
摘要翻译： 公开了一种使用水平型阳离子交换膜电解池的电解方法，其中阴极电解液在阴极电解液出口处以初始线速度至少为8cm / sec，气体含量为0.6以下供入阴极室。 还公开了用于上述方法的电解槽。 本发明不仅能够以低成本将汞电解池转化为阳离子交换膜电解槽，而且能够长期稳定地进行操作。
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公开(公告)号：US4596639A
公开(公告)日：1986-06-24
申请号：US434737
申请日：1982-10-18
申请人： Tsutomu Nishio , Yasushi Samejima , Minoru Shiga , Toshiji Kano , Koji Saiki
发明人： Tsutomu Nishio , Yasushi Samejima , Minoru Shiga , Toshiji Kano , Koji Saiki
摘要： Disclosed is an electrolysis process which is characterized by carrying out the electrolysis of an aqueous alkali metal halide solution while supplying a cathode liquor into a cathode compartment formed between a cation exchange membrane positioned substantially horizontal and a cathode plate of gas-liquid impermeability, with which the membrane is wetted, then a mixed stream of the cathode liquor and cathode gas being removed from the cathode compartment.Also disclosed is an electrolytic cell which is comprised of an upper anode compartment and a lower cathode compartment partitioned by a cation exchange membrane positioned substantially horizontal, said anode compartment having therein substantially horizontal anodes and an anolyte solution inlet and outlet, and said cathode compartment having a cathode plate with gas-liquid impermeability and a cathode liquor inlet and an outlet of a mixed stream of the cathode liquor and cathode gas.
摘要翻译： 公开了一种电解方法，其特征在于，在将碱性金属卤化物水溶液进行电解的同时，将阴极液供给到形成在基本水平的阳离子交换膜和气液不透性的阴极板之间的阴极室中， 将膜浸湿，然后从阴极室除去阴极液体和阴极气体的混合物流。 还公开了一种电解池，其由上阳极室和由阳离子交换膜分隔开的下阴极室组成，阳离子交换膜位于基本上水平的位置，所述阳极室具有基本上水平的阳极和阳极电解液入口和出口，所述阴极室具有 具有气液不透性的阴极板和阴极液入口以及阴极液和阴极气体的混合流的出口。
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公开(公告)号：US4574037A
公开(公告)日：1986-03-04
申请号：US566931
申请日：1983-12-30
摘要： Disclosed is a vertical type electrolytic cell partitioned by an ion exchange membrane into an anode compartment and a cathode compartment, the cathode compartment being divided by a non-perforated cathode plate into a cathode gas generation room and a cathode gas separation room. Also disclosed is an electrolytic process using the electrolytic cell wherein the catholyte is circulated between the two rooms as a result of a gas lift effect produced by the cathode gas.
摘要翻译： 公开了一种由离子交换膜分隔成阳极室和阴极室的垂直型电解槽，阴极室由非穿孔阴极板分成阴极气体发生室和阴极气体分离室。 还公开了使用电解池的电解方法，其中阴极气体由于由阴极气体产生的气举效应而在两个房间之间循环。
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公开(公告)号：US4556470A
公开(公告)日：1985-12-03
申请号：US599135
申请日：1984-04-11
申请人： Yasushi Samejima , Minoru Shiga , Toshiji Kano , Kiyoshi Yamada
发明人： Yasushi Samejima , Minoru Shiga , Toshiji Kano , Kiyoshi Yamada
CPC分类号： C25B9/08
摘要： An electrolytic cell is disclosed comprising an upper anode compartment and a lower cathode compartment partitioned by a cation exchange membrane, in which partitioning spacers are provided on a cathode plate in order to eliminate the troubles owing to non-uniform flow of catholyte liquor, non-uniformity of anode-cathode gap, coarse surface of the cathode plate and the like.
摘要翻译： 公开了一种电解池，包括由阳离子交换膜分隔的上阳极室和下阴极室，其中分隔间隔件设置在阴极板上，以消除由于阴极电解液不均匀流动引起的故障， 阳极 - 阴极间隙的均匀性，阴极板的粗糙表面等。
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公开(公告)号：US4293395A
公开(公告)日：1981-10-06
申请号：US148394
申请日：1980-05-09
IPC分类号： C25B1/46
CPC分类号： C25B1/46
摘要： Process for the electrolysis of an aqueous alkali metal chloride solution using a cation exchange membrane, wherein the gas-liquid interface, at which halogen gas is separated, is maintained larger than the sum total of the cross section area of the unit anode chambers opposing to cathodes, and further, higher than the upper end of the cation exchange membrane. The invention has numerous advantages including substantial absence of halogen gas, operation at a low voltage, a high pure product, simplification of operation control and the like.
摘要翻译： 使用阳离子交换膜电解碱金属氯化物水溶液的方法，其中分离卤素气体的气液界面保持大于与单位阳极室相对的横截面面积的总和 阴极，进一步高于阳离子交换膜的上端。 本发明具有许多优点，包括基本上不存在卤素气体，在低电压下操作，高纯度产品，简化操作控制等。
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10.发明授权Electrolytic process of an aqueous alkali metal halide solution and electrolytic cell 失效碱金属卤化物水溶液和电解池的电解过程
公开(公告)号：US4370208A
公开(公告)日：1983-01-25
申请号：US208843
申请日：1980-11-20
申请人： Tokuzo Iijima , Yasushi Samejima , Kazuo Kishimoto , Toshiji Kano , Kiyoshi Yamada , Yoshio Hatta
发明人： Tokuzo Iijima , Yasushi Samejima , Kazuo Kishimoto , Toshiji Kano , Kiyoshi Yamada , Yoshio Hatta
摘要： An electrolytic process is provided for the electrolysis of an aqueous alkali metal halide solution, which comprises effecting the electrolysis in a cell being separated by a cation exchange membrane into an anode compartment and a cathode compartment, wherein washing liquid is supplied into a liquid seal pot provided at a cathode gas outlet of a cathode compartment and cathode gas evolved from the cell is contacted with the washing liquid in the liquid seal pot.
摘要翻译： 提供一种用于电解碱金属卤化物水溶液的电解方法，该方法包括在由阳离子交换膜分离的电池中进行电解，进入阳极室和阴极室，其中将洗涤液体供应到液体密封罐 设置在阴极室的阴极气体出口处，并且从电池放出的阴极气体与液体密封罐中的洗涤液接触。
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