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公开(公告)号：US4615775A
公开(公告)日：1986-10-07
申请号：US490515
申请日：1983-05-02
摘要： Halogen is produced by electrolyzing an aqueous halide in a specially designed cell. The cell comprises an anolyte chamber and a catholyte chamber separated by a permeable membrane or diaphragm, notably an ion exchange (generally cation exchange) polymer. At least one electrode comprises at least two sections. One section comprises a gas and electrolyte permeable layer, sheet or mat having a catalytic surface, i.e. one having a low overvoltage, (low hydrogen overvoltage if the cathode and low halogen overvoltage if the anode). This layer is spaced from the membrane by a second portion comprising an electroconductive resiliently compressible layer or mat, which is in contact with the membrane on one side thereof, the other side thereof being in contact with the main cathode.This second or spacer section advantageously has an electrode surface having a higher overvoltage than the first electrode surface. Preferably the cathode has the above construction.Upon electrolysis of alkali metal chloride or other halide in such a cell and with a cathode of the type described above, a low voltage is obtained even at high current densities and the cathode efficiency is high.
摘要翻译： 卤素通过在专门设计的电池中电解卤化物水溶液而产生。 电池包括由可渗透膜或隔膜分开的阳极电解液室和阴极电解液室，特别是离子交换（通常为阳离子交换）聚合物。 至少一个电极包括至少两个部分。 一个部分包括气体和电解质可渗透层，具有催化表面的片材或垫，即具有低过电压的片材或垫片（如果阴极和低卤素过电压（如果阳极，则为低氢过电压））。 该层与膜间隔开第二部分，该第二部分包括导电弹性可压缩层或垫，该导电弹性可压缩层或垫在其一侧与膜接触，其另一侧与主阴极接触。 该第二或间隔部分有利地具有比第一电极表面更高的过电压的电极表面。 阴极优选具有上述结构。 在这种电池中和碱金属氯化物或其他卤化物电解时，即使在高电流密度下也能获得低电压，阴极效率高。
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公开(公告)号：US4452683A
公开(公告)日：1984-06-05
申请号：US452268
申请日：1982-12-22
申请人： Oronzio de Nora , Giuseppe Bianchi
发明人： Oronzio de Nora , Giuseppe Bianchi
CPC分类号： C23F13/02 , Y10T29/49117 , Y10T29/49169 , Y10T29/49185 , Y10T29/49192 , Y10T29/49199
摘要： An advantageous anodic structure, particularly useful for cathodic protection of metal structures having a large linear extension, is made of an insulated power cable having suitable terminal at least at one end for the electrical connection to the positive pole of the electrical source and of a series of anodic segments distributed over the length of the power cable, coaxial with the cable itself and electrically connected through a leak-proof connection with the conductive core of the insulated power cable without interruption of the core continuity.
摘要翻译： 特别适用于具有大线性延伸的金属结构的阴极保护的有利的阳极结构由绝缘电力电缆制成，绝缘电力电缆至少在一端具有用于与电源的正极的电连接和串联 阳极段分布在电力电缆的长度上，与电缆本身同轴，并通过与绝缘电力电缆的导电芯的防漏连接电连接，而不会中断磁芯的连续性。
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公开(公告)号：US4295952A
公开(公告)日：1981-10-20
申请号：US133521
申请日：1980-03-24
申请人： Oronzio de Nora , Luigi Giuffre , Giovanni Modica
发明人： Oronzio de Nora , Luigi Giuffre , Giovanni Modica
CPC分类号： C08J5/2287 , C08J2339/08 , C08J2353/02
摘要： Cationic membranes permeable to ions but fluid impermeable comprising a partly sulfonated terpolymer of styrene, divinylbenzene and at least one member of the group consisting of 2-vinylpyridine, 4-vinylpyridine and acrylic acid, the degree of sulfonation varying through the membrane cross-section from a maximum or the anodic surface to a minimum at the cathodic surface, their preparation, their use in electrolysis cells and electrochemical processes.
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公开(公告)号：US4186076A
公开(公告)日：1980-01-29
申请号：US13830
申请日：1979-02-22
申请人： Oronzio de Nora , Luigi Giuffre , Giovanni Modica
发明人： Oronzio de Nora , Luigi Giuffre , Giovanni Modica
CPC分类号： C25B1/46 , C08J5/2231 , C08J5/2243 , C25B13/04 , C08J2339/08
摘要： Porous and electrolyte permeable composite diaphragms for electrolysis cells comprising a chemically inert, fibrous porous matrix or substrate impregnated with a copolymer of divinylbenzene and at least one member of the group consisting of 2-vinylpyridine and 4-vinylpyridine, method of electrolysis of an electrolyte using the said diaphragms and an electrolysis cell containing said diaphragms.
摘要翻译： 用于电解槽的多孔和电解质渗透性复合隔膜包括浸渍有二乙烯基苯共聚物和2-乙烯基吡啶和4-乙烯基吡啶的至少一种成员的化学惰性的纤维多孔基体或基底，电解质的电解方法使用 所述隔膜和包含所述隔膜的电解槽。
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公开(公告)号：US4118306A
公开(公告)日：1978-10-03
申请号：US773069
申请日：1977-02-28
申请人： Vittorio De Nora , Oronzio De Nora
发明人： Vittorio De Nora , Oronzio De Nora
摘要： Provides an imperforate valve metal blanket between the cell base of a electrolysis cell and the cell can, which acts as a conductor from the positive current leads to dimensionally stable anodes and provides hollow anodes with perforate and imperforate sections to promote anolyte circulation within the cell.
摘要翻译： 在电解池的电池基体和电池罐之间提供无孔的阀金属覆盖层，电池罐作为来自正电流的导体导致尺寸稳定的阳极，并提供具有穿孔和无孔部分的中空阳极，以促进电池内的阳极电解液循环。
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6.发明授权
公开(公告)号：US4073715A
公开(公告)日：1978-02-14
申请号：US655493
申请日：1976-02-05
申请人： Oronzio De Nora , Vittorio De Nora
发明人： Oronzio De Nora , Vittorio De Nora
摘要： Describes an electrolysis cell and method of operation in which metal anodes (preferably titanium) provided with an electrically conducting electrocatalytic coating, in an anode compartment, face metal cathodes (preferably diaphragm covered) in a cathode compartment, in which the anodes are spaced from an imperforate valve metal separating partition by a separating wall behind which the anolyte can recirculate downward. The anodic gases rising in the anode compartment discharge into a brine box above the anode compartment near the center thereof and the anolyte recirculates downward near at least one end of the anode compartment, and a method of operation which provides circulation from front to back of the anode compartment and from center to the sides of the anode compartment.
摘要翻译： 描述电解槽和操作方法，其中在阳极室中设置有导电电催化涂层的金属阳极（优选钛）面对阳极隔室中的金属阴极（优选隔膜覆盖），其中阳极与 无孔阀门金属分离隔板由隔离壁后面，阳极电解液可以向下再循环。 在阳极室中升高的阳极气体排放到靠近阳极室的阳极室上方的盐水箱中，阳极电解液在阳极室的至少一端附近向下再循环，并且提供一种操作方法，其从 阳极室和阳极室的中心到侧面。
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7.发明授权Method of converting mercury cathode chlor-alkali electrolysis cells into diaphragm cells and cells produced thereby 失效将汞阴极氯碱电解槽转换成膜片电池及由此制成的电池的方法
公开(公告)号：US3923614A
公开(公告)日：1975-12-02
申请号：US45664674
申请日：1974-04-01
发明人： DE NORA VITTORIO , DE NORA ORONZIO
CPC分类号： C25B9/08
摘要： Describes a method for converting mercury cathode chlor-alkali electrolysis cells into diaphragm cells, in place, in a mercury cell plant, the method for converting a mercury cell plant into a diaphragm cell plant while continuing operation of the plant and new diaphragm cells produced.
摘要翻译： 介绍了一种在汞电池厂中将汞阴极氯碱电解槽转换为膜片电池的方法，将汞电池装置转换为膜片电池装置，同时生产植物和新膜片电池的持续运转。
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8.发明授权A process for decomposing alkali metal amalgams into mercury, hydrogen and alkali metal hydroxide solutions 失效将碱性金属铵分解成汞，氢和碱金属氢氧化物溶液的方法
公开(公告)号：US3833357A
公开(公告)日：1974-09-03
申请号：US27105572
申请日：1972-07-12
摘要： Graphite impregnated with at least one valve metal oxide such as zirconium oxide, tantalum oxide, titanium oxide, aluminum oxide or molybdenum oxide alone or optionally co-deposited with an oxide of a metal of the eighth group of the periodic table which is useful in an amalgam denuder and a process for the preparation and use of the said impregnated graphite to decompose an alkali metal amalgam to mercury and alkali metal hydroxide.
摘要翻译： 用至少一种阀金属氧化物如氧化锆，氧化钽，氧化钛，氧化铝或氧化钼浸渍的石墨，或者任选地与元素周期表第八族金属的氧化物共沉积，其可用于 汞齐剥蚀剂以及用于制备和使用所述浸渍的石墨以将碱金属汞齐分解成汞和碱金属氢氧化物的方法。
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公开(公告)号：US3668104A
公开(公告)日：1972-06-06
申请号：US3668104D
申请日：1969-09-17
摘要： A circuit breaker for fluent electrical conductors, such as mercury, which consists of a chamber with a perforated plate at the top, a mercury and water inlet, a mercury outlet at the bottom and a water outlet located at an intermediate point. Mercury and water are introduced onto the perforated plate and are allowed to drip through the perforations into the chamber below. Electrical circuit through the mercury is broken when mercury is allowed to drip through the perforated plate in a discontinuous stream of drops. In the chamber, mercury being heavier than water, settles in a layer on the bottom, and water settles on the top of the mercury layer. Withdrawal of mercury is controlled by a trap in the mercury outlet line to maintain the desired level of mercury in the chamber. The method and apparatus can be used on single or multiple mercury streams and to break the amalgam circuit in a mercury amalgam denuder.
摘要翻译： 用于流明电导体（例如汞）的断路器，其由顶部具有多孔板的室，汞和水入口，底部的汞出口和位于中间点处的出水口组成。 将汞和水引入多孔板上，并允许穿过穿孔进入下面的室中。 当允许汞以不连续的液滴滴穿过多孔板时，通过汞的电路断开。 在室内，水银比水重，沉降在底部的一层，水沉淀在汞层的顶部。 汞的排出通过汞排出管道中的陷阱控制，以保持室内所需的汞含量。 该方法和装置可用于单个或多个汞流并且在汞汞齐分解器中破坏汞齐电路。
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