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公开(公告)号：US5454925A
公开(公告)日：1995-10-03
申请号：US237569
申请日：1994-05-03
IPC分类号： C25B11/03
CPC分类号： C25B11/03 , Y10T29/49718 , Y10T29/49728 , Y10T29/4973 , Y10T29/49737 , Y10T29/49742
摘要： Electrodes such as mesh electrodes can be in configurations where they are separated from electrode back pans by standoffs. The mesh electrodes are very adherently secured to the standoffs. When the electrodes are in need of repair, removal and refurbishing can be a problem. There is now disclosed a method of electrode repair which in large part retains original structure by first removing the mesh electrode and then at least substantially the top of the standoff. A replacement standoff assembly is placed against the retained portion of the original standoff and secured thereto. Refurbished or new electrode mesh can be adhered to the resulting replacement standoff. This may include welding of mesh electrode strands utilizing weld nuggets which are substantially the size of the strands. The refurbishing technique can maintain original separation distances between the back pan and the electrode. The structure provided can be in an "as new" condition without need for repair at an off site location from where the electrode will be used.
摘要翻译： 诸如网状电极的电极可以是通过间隔与电极背板分离的构造。 网状电极非常牢固地固定在支座上。 当电极需要修理时，拆卸和翻新可能是一个问题。 现在公开了一种电极修复方法，其通过首先除去网状电极，然后至少基本上保持支架的顶部，大部分保持原始结构。 将替换的支架组件放置在原始支架的保持部分上并固定到其上。 翻新或新的电极网可以粘附到所产生的替换支架上。 这可以包括使用基本上是股线的尺寸的焊接块来焊接网状电极股线。 翻新技术可以保持背板和电极之间的原始间隔距离。 所提供的结构可以处于“一个新的”状态，而不需要在使用电极的非现场位置进行修复。
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公开(公告)号：US06998029B2
公开(公告)日：2006-02-14
申请号：US10218368
申请日：2002-08-14
申请人： Kenneth L. Hardee , Michael S. Moats , Carl W. Brown, Jr. , Robert L. Wilhelm , Edward M. Halko , Zane A. Wade
发明人： Kenneth L. Hardee , Michael S. Moats , Carl W. Brown, Jr. , Robert L. Wilhelm , Edward M. Halko , Zane A. Wade
IPC分类号： C25B9/04
摘要： Various systems and methods for protecting electrowinning anodes having electrocatalytically active coatings in a bank of electrolytic cells from being damaged by reverse currents. In the first embodiment, one or more auxiliary power sources are provided that, when triggered by one or more predetermined conditions being met, keep the bank of electrolytic cells in an electrical state that is relatively harmless to the anodes having electrocatalytically active coatings. In a second embodiment, the invention is directed to a method of maintaining the polarization of anodes in an electrowinning cell positive of the cathodes (i.e. in a potential region where the anode coating is not susceptible to significant damage). In a final embodiment, the invention is directed to various methods for the installation of replacement anodes and maintenance of electrowinning cells.
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公开(公告)号：US5804055A
公开(公告)日：1998-09-08
申请号：US808978
申请日：1997-02-19
申请人： Richard J. Coin , Lynne M. Ernes , Andy W. Getsy , Edward M. Halko , Kenneth L. Hardee , Marilyn J. Niksa
发明人： Richard J. Coin , Lynne M. Ernes , Andy W. Getsy , Edward M. Halko , Kenneth L. Hardee , Marilyn J. Niksa
IPC分类号： B01D53/14 , B01D53/32 , C25B9/08 , C25B11/03 , C25B11/10 , C25B15/08 , C25C7/02 , C25B9/00 , C25B13/08
CPC分类号： C25B9/08 , B01D53/1425 , B01D53/326 , C25B11/03 , C25B11/035 , C25B15/08 , C25C7/02
摘要： An electrode, electrochemical cell, and electrochemical processes are disclosed. The electrode is a porous, multi-layered electrode which can have an element in flexible, strip form wound around a central, usually flat plate core, which core may serve as a current distributor. In any form, each layer can be represented by a very thin, highly flexible metal mesh. This can be a fine, as opposed to a coarse, mesh which has extremely thin strands and small voids. The electrode will have an active coating. For utilizing this electrode, the cell in one form will be a monopolar cell providing upward, parallel electrolyte flow through the porous, multi-layered electrode. A representative cell can have such electrode at least substantially filling an electrode chamber. The cells can be contained in a cell box that will provide the desired flow-through relationship for the electrolyte to the electrode. In cell operation, electrochemical processes which can be carried out include metal ion oxidation or reduction, oxidation of organic substituents, nitrate reduction as well as salt splitting.
摘要翻译： 公开了一种电极，电化学电池和电化学方法。 电极是多孔的多层电极，其可以具有缠绕在中心的，通常为平的板芯上的柔性带状的元件，该芯可以用作电流分布器。 以任何形式，每层可以由非常薄的，高度柔性的金属网表示。 这可以是细的，而不是具有极细线和小空隙的粗网。 电极将具有活性涂层。 为了利用该电极，一种形式的电池将是单极电池，其提供通过多孔多层电极的向上平行的电解质流。 代表性的电池可以具有至少基本上填充电极室的这种电极。 细胞可以包含在细胞盒中，其将为电解质提供期望的流通关系。 在电池操作中，可以进行的电化学过程包括金属离子氧化还原，有机取代基的氧化，硝酸盐的还原以及盐分解。
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公开(公告)号：US5705051A
公开(公告)日：1998-01-06
申请号：US632574
申请日：1996-04-15
申请人： Richard J. Coin , Lynne M. Ernes , Andy W. Getsy , Edward M. Halko , Kenneth L. Hardee , Marilyn J. Niksa
发明人： Richard J. Coin , Lynne M. Ernes , Andy W. Getsy , Edward M. Halko , Kenneth L. Hardee , Marilyn J. Niksa
CPC分类号： C25B9/08 , B01D53/1425 , B01D53/326 , C25B11/03 , C25B11/035 , C25B15/08 , C25C7/02
摘要： An electrode, electrochemical cell, and electrochemical processes are disclosed. The electrode is a porous, multi-layered electrode which can have an element in flexible, strip form wound around a central, usually flat plate core, which core may serve as a current distributor. In any form, each layer can be represented by a very thin, highly flexible metal mesh. This can be a fine, as opposed to a coarse, mesh which has extremely thin strands and small voids. The electrode will have an active coating. For utilizing this electrode, the cell in one form will be a monopolar cell providing upward, parallel electrolyte flow through the porous, multi-layered electrode. A representative cell can have such electrode at least substantially filling an electrode chamber. The cells can be contained in a cell box that will provide the desired flow-through relationship for the electrolyte to the electrode. In cell operation, electrochemical processes which can be carried out include metal ion oxidation or reduction, oxidation of organic substituents, nitrate reduction as well as salt splitting.
摘要翻译： 公开了一种电极，电化学电池和电化学方法。 电极是多孔的多层电极，其可以具有缠绕在中心的，通常为平的板芯上的柔性带状的元件，该芯可以用作电流分布器。 以任何形式，每层可以由非常薄的，高度柔性的金属网表示。 这可以是细的，而不是具有极细线和小空隙的粗网。 电极将具有活性涂层。 为了利用该电极，一种形式的电池将是单极电池，其提供通过多孔多层电极的向上平行的电解质流。 代表性的电池可以具有至少基本上填充电极室的这种电极。 细胞可以包含在细胞盒中，其将为电解质提供期望的流通关系。 在电池操作中，可以进行的电化学过程包括金属离子氧化还原，有机取代基的氧化，硝酸盐的还原以及盐分解。
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