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Titanium anode plate with precious metal combination coating

A coating and inner coating technology, applied in the direction of electrodes, electrolysis components, electrolysis process, etc., can solve the problems of short service life of anode, failure to solve, corrosion of anode material, etc., to extend service life, reduce cell voltage, improve Yield effect

Inactive Publication Date: 2011-05-18
仇文东
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Problems solved by technology

In actual production, the corrosion of the anode material of the hydrometallurgical electrolysis device is serious. The existing technology solves the anode corrosion problem of a single system by using Ru (ruthenium) or Ir (iridium) chloride coating on the titanium anode plate, but for mixed The corrosion problem of the anode material of the system has not been solved so far
The problem is that only oxygen is released when the anode works in the sulfate system, and only chlorine gas is released when the anode works in the chloride system, but both oxygen and chlorine gas must be released when the anode works in the mixed system. Therefore, the existing technology can no longer Solve the problem of anode corrosion in hybrid systems, resulting in very short anode life

Method used

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Embodiment Construction

[0009] Attached below figure 1 An embodiment of the present invention is described.

[0010] A titanium anode plate with a noble metal composite coating, has a titanium substrate 1, the surface of the titanium substrate 1 is coated with a ruthenium oxide coating, a mixed coating of molybdenum oxide, tantalum oxide and titanium oxide, and an iridium oxide coating. Oxide and palladium oxide mixed coating. The ruthenium oxide RuO2 is mixed with the binder and painted on the surface of the titanium substrate 1 to form an inner coating 2, and the molybdenum oxide MoO3, tantalum oxide Ta2O5 and titanium oxide TiO2 are mixed with the binder and painted on the surface of the titanium base material 1. An intermediate coating 3 is formed on the surface of the inner coating 2 , and the surface of the intermediate coating 3 is brushed after mixing iridium oxide IrO2 and palladium oxide PdO with a binder to form an outer coating 4 . The thicknesses of the inner coating 2 , the intermedia...

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Abstract

The invention provides a titanium anode plate with a precious metal combination coating. The titanium anode plate is provided with titanium base materials. The surface of the titanium base materials is orderly coated with a ruthenium oxide coating, a mixing coating of molybdenum oxide, tantalum oxide and titanium oxide, and a mixing coating of iridium oxide and palladium oxide. The titanium anode plate provided by the invention solves the anode corrosion problem in a mixing system of chloride and sulfate, prolongs the service life of a titanium anode, and is suitable for producing metal materials, such as nickel, cobalt, copper, and the like through hydrometallurgy electrolysis.

Description

technical field [0001] The invention belongs to the technical field of hydrometallurgy electrolysis, and in particular relates to a titanium anode plate with a noble metal combined coating. Background technique [0002] There are three types of electrolytes in hydrometallurgical electrolysis technology: sulfate system; chloride system; chloride and sulfate mixed system. In actual production, the corrosion of the anode material of the hydrometallurgical electrolysis device is serious. The existing technology solves the anode corrosion problem of a single system by using Ru (ruthenium) or Ir (iridium) chloride coating on the titanium anode plate, but for mixed The corrosion problem of the anode material of the system has not been solved so far. The problem is that only oxygen is released when the anode works in the sulfate system, and only chlorine gas is released when the anode works in the chloride system, but both oxygen and chlorine gas must be released when the anode wor...

Claims

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Application Information

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IPC IPC(8): C25B11/08C25B11/10
Inventor 仇文东
Owner 仇文东
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