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公开(公告)号：EP0090435A1
公开(公告)日：1983-10-05
申请号：EP83200194.5
申请日：1983-02-08
发明人： Vance, Christopher John , Nguyen, Thinh , Fresnel, Jean-Marie , Beer, Henri Bernard , Ernst, Siegfried
IPC分类号： C25D3/12 , C25D3/22 , C25D3/26 , C25D3/30 , C25D3/34 , C25D3/56 , C25D5/44 , C25D5/34 , C25D3/38 , C25D3/46 , C25D3/54
摘要： An electrode in particular an oxygen-evolving anode for metal electrowinning from an acid electrolyte comprises a body of aluminium or other metal coated with lead or a lead alloy by electroplating preferably from a non-aqueous electrolyte. The substrate can be a sheet of aluminium or compacted particles of aluminium plated with lead or a lead alloy. A sheet of lead or lead alloy is clad to the electroplated substrate and advantageously an electrocatalytic material such as surface-activated valve metal sponge is applied to the surface of the lead or lead alloy.
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2.发明授权Dimensionally stable coated electrode for electrolytic process, comprising protective oxide interface on valve metal base, and process for its manufacture 失效用于电镀工艺的尺寸稳定的涂覆电极，包含阀门金属基底上的保护氧化物界面及其制造方法
公开(公告)号：EP0046449B1
公开(公告)日：1985-07-03
申请号：EP81810323.6
申请日：1981-08-11
CPC分类号： C25C7/02 , C25B11/0484 , C25B11/16
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3.发明公开Coated metal electrode with improved barrier layer and methods of manufacture and use thereof 失效与阻挡层和它们的制备和使用方法涂覆的金属电极。
公开(公告)号：EP0027051A1
公开(公告)日：1981-04-15
申请号：EP80303526.0
申请日：1980-10-07
CPC分类号： C25B11/0484
摘要： An electrode for use in electrolytic processes comprises a substrate of film-forming metal such as titanium having a porous electrocatalytic coating comprising at least one platinum-group metal and/or oxide thereof possibly mixed with other metal oxides, in an amount of at least about 2 g/m 2 of the platinum-group metal(s) per projected surface area of the substrate. Below the coating is a pre- formed barrier layer constituted by a surface oxide film grown up from the substrate. This preformed barrier layer has rhodium and/or iridium as metal or compound incorporated in the surface oxide film during formation thereof in an amount of up to 1 g/m 2 (as metal) per projected surface area of the substrate.
摘要翻译： 在电解过程中使用的电极包括成膜金属的底物：如具有多孔电催化涂层，其包含至少一种铂族金属和/或它们的氧化物可能与其它金属氧化物混合以至少约2量钛 克/米<2>每基底的投影表面积的铂族金属（多个）。 下面的涂层是由构成的预成形阻挡层的表面氧化膜生长从基板向上。 此预成型阻挡层具有铑和/或铱作为金属或化合物中的每基板的投影表面积至多为1g / m <2>（以金属计）一个量期间其在表面形成氧化膜形成并入。
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公开(公告)号：EP0079625B1
公开(公告)日：1986-11-26
申请号：EP82201263.9
申请日：1982-10-12
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5.发明公开Composite catalytic material particularly for electrolysis electrodes and method of manufacture 失效催化复合材料特别适用于电解的电极，以及它们的制备方法。
公开(公告)号：EP0174413A1
公开(公告)日：1986-03-19
申请号：EP84810446.9
申请日：1984-09-13
发明人： Beer, Henri Bernard , van den Keybus, Frans , Bishara, Jeries Issa , Kovatch, William A. , Hinden, Jean Marcel
CPC分类号： C25B11/035 , C25B11/0484
摘要： A porous high surface area composite electroconductive catalytic material, particularly as electrocatalyst for electrolysis electrodes, comprises a porous pre-formed matrix which is a catalytic mixed crystal material of at least one platinum group metal oxide and at least one valve metal oxide throughout which a subsequently-added additional catalyst preferably consisting of at least one platinum group metal and or oxide is dispersed by chemideposition in an oxidizing or reducing atmosphere preferably followed by an annealing post heat treatment. The porous matrix may be ruthenium-titanium oxide and the additional catalyst advantageously comprises at least two oxides of ruthenium, rhodium, palladium and iridium, other combinations being possible.
摘要翻译： 一种多孔的高表面积的复合导电催化剂材料，特别是用于电解的电极作为电催化剂，包括多孔预成形的矩阵中的所有其是至少一种铂族金属氧化物的催化混合晶体材料和至少一种阀金属氧化物在整个哪些随后 催化剂添加的额外优选在氧化性或还原性气氛优选通过退火后热处理随后由至少一种铂族金属和或氧化物通过chemideposition分散的。 多孔基体可以是钌氧化钛和附加催化剂有利地包括钌，铑，钯和铱的组合等是可能的至少两种氧化物。
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6.发明公开Electrode with lead base and method of making same 失效Elektrode mit Bleibasis和Verfahren zu ihrer Herstellung。
公开(公告)号：EP0087186A1
公开(公告)日：1983-08-31
申请号：EP83200195.2
申请日：1983-02-08
发明人： Beer, Henri Bernard , Katz, Michael , Hinden, Jean
摘要： An electrode with a base of lead or lead alloy provided with catalytic particles of an inert refractory oxide activated by means of a catalyst, which particles are partly embedded, anchored and electrically connected to the base. The underlying lead or lead alloy remains electrochemically inactive and the base thereby serves only as a stable conductive support. Preferably, the electrode is an anode for oxygen evolution with titanium particles at the surface of its base, which particles are catalytically activated by means of ruthenium-manganese oxide.
The anode may be used more particularly in cells for electrowinning metals with a higher degree of purity with respect to conventional cells equipped with anodes consisting of lead or a lead alloy.摘要翻译： 具有铅或铅合金基底的电极，其具有通过催化剂活化的惰性耐火氧化物的催化颗粒，所述催化剂颗粒部分地嵌入，锚定并电连接到基底。 下面的铅或铅合金保持电化学惰性，从而仅用作稳定的导电载体。 优选地，电极是用于在其基底的表面具有钛颗粒的析氧的阳极，该颗粒通过钌 - 锰氧化物催化活化。 相对于配备有由铅或铅合金构成的阳极的常规电池，阳极可以更具体地用于电解冶金具有更高纯度的金属的电池中。
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7.发明公开
公开(公告)号：EP0081251A1
公开(公告)日：1983-06-15
申请号：EP82201333.0
申请日：1982-10-26
摘要： A narrow gap electrolysis cell has anode and cathode compartments (10, 11) divided by an ionically-permeable separator (12), such as an ion-exchange membrane or a fibrous diaphragm, and a current feeder grid (18, 19) in electrical contact with a surface-activated particulate electrocatalytic material (14, 15) carried on a face of the separator (12). The particulate material has cores of a corrosion-resistant material preferably valve metal particles or sponge, or compounds thereof, as well as asbestos fibres and fibres of ion-exchange copolymeric perfluorocarbons, coated with a platinum-group metal catalyst in metal or oxide form. The surface-activated particles may be at least partly carried by a flexible electronically conductive foil (16, 17) between the current feeder grid (18, 19) and the separator (12).
摘要翻译： 窄间隙电解槽具有阳离子室和阴极隔室（10,11），其被离子透过性分离器（12）分离，例如离子交换膜或纤维隔膜，以及电流供给栅格（18,19） 与承载在分离器（12）的表面上的表面活化的颗粒状电催化材料（14,15）接触。 颗粒材料具有防腐蚀材料的核心，优选为金属或海绵的金属或海绵，或其化合物，以及用金属或氧化物形式的铂族金属催化剂涂覆的离子交换共聚全氟化碳的石棉纤维和纤维。 表面活化的颗粒可以至少部分地由当前馈送栅格（18,19）和分离器（12）之间的柔性电子导电箔（16,17）承载。
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公开(公告)号：EP0081251B1
公开(公告)日：1985-12-18
申请号：EP82201333.0
申请日：1982-10-26
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9.发明公开Precipitation or depositing of particles from a solution 失效Fällungoder Abscheidung von Teilchen aus einerLösung。
公开(公告)号：EP0079625A1
公开(公告)日：1983-05-25
申请号：EP82201263.9
申请日：1982-10-12
发明人： Beer, Henri Bernard , van den Keybus, Frans Alfons Maria , Suykerbuyk, Ludovicus Franciscus Maria
摘要： The precipitation or depositing of particles from a solution in a cell (61) in which an electric field is applied between an anode (65,67,68) and a cathode (66), typically an electrolysis cell for the co-precipitation of mixed oxides but also cells for electrodeposition or the electrophoretic deposition of colloidal particles, is controlled by measuring the pH of the solution in the cell using a probe (72) shielded in a tube (73) from the migrating electric current and from gas bubbles. The pH of the solution is then adjusted to a selected value as a function of the measured pH, e.g. by varying the electrolysis current or by bubbling in acid vapour, air or base vapour.
摘要翻译： 通过在阳极（65,67,68）和阴极（66）之间施加电场的电池（61）中的溶液中沉淀或沉积颗粒，通常用于混合的共沉淀的电解池 氧化物，还有用于电沉积或胶体颗粒的电泳沉积的电池，通过使用屏蔽在管（73）中的探针（72）从迁移电流和气泡中测量电池中的溶液的pH来控制。 然后将溶液的pH调节至作为测量的pH的函数的选定值，例如， 通过改变电解电流或通过在酸性蒸汽，空气或碱蒸气中鼓泡。
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公开(公告)号：EP0046727A1
公开(公告)日：1982-03-03
申请号：EP81810324.4
申请日：1981-08-11
发明人： Beer, Henri Bernard
CPC分类号： C25B11/0478 , C25B11/0415 , C25B11/0484 , C25C7/02
摘要： An anode with a base of lead or lead alloy is provided with catalytic particles of titanium which comprise a very small amount of platinum group metal or an oxide thereof.
These catalytic particles are partly embedded, anchored and electrically connected to the base, so that oxygen. is evolved on these particles at a reduced potential at which the underlying lead or lead alloy of the base remains electrochemically inactive, and the anode base thereby serves only as a stable conductive support to the catalytic particles.
Operation of this anode at a reduced potential provides energy savings. It may be used more particularly in cells for electrowinning metals with a higher degree of purity at a reduced energy cost with respect to conventional cells equipped with anodes consisting of lead or a lead alloy.
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