A device and electrowinning method for producing nickel buttons by swirl electrowinning

Abstract

Disclosed is a swirling flow electrodeposition nickel button production device. The swirling flow electrodeposition nickel button production device comprises an electrodeposition cell, a to-be-electrodeposited liquid storage tank, a forced circulation system and a nickel-poor electrodeposition liquid storage tank. The electrodeposition cell comprises an electrodeposition cell body serving as an anode, a rotary type cathode and a transmission device. The rotary type cathode is horizontally placed in U-shaped clamping grooves at the two end faces of the electrodeposition cell body. A nickel button sliding plate outlet which is parallel to the axis of the rotary type cathode is formed in the side face of the electrodeposition cell body. An insulating coating where a plurality of holes are distributed adheres to the circumferential outer surface of the rotary type cathode, and one axial end of the rotary type cathode meshes with a gear of the transmission device. According to the swirling flow electrodeposition nickel button production device, the electrodeposition cell body serves as the anode, and the cathode is the rotary type cathode; the swirling flow electrodeposition nickel button production device is simple in structure, and the technological process is simple and short; the cathode and the anode are arranged in an inside-outside mode, and thus a starting sheet is not additionally used; a nickel button deposited on the cathode can be easily stripped, and the cathode and a product are not damaged; and the produce nickel button is uniform in appearance and high in quality, and secondary deep processing investment is reduced.

Description

technical field [0001] The invention relates to a reaction device for producing nickel buttons, in particular to a device for producing nickel buttons by swirl electrowinning. Background technique [0002] After limonite-like lateritic nickel ore is leached by sulfuric acid or nitric acid solution, the composition of the leach solution is relatively complex, containing nickel, cobalt, chromium, aluminum, iron, silicon dioxide and other ions. In the hydrometallurgical process, these ions are often separated and extracted one by one by chemical precipitation to obtain usable renewable secondary resources. However, when the chemical precipitation method is applied in the field of industrialization, there are disadvantages such as complex process flow, low metal recovery rate, high equipment investment cost and easy to produce secondary pollution. At the same time, the main extracted ion nickel is in the form of nickel hydroxide as the final product for downstream use. Users ne...

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Problems solved by technology

[0008] The present invention solves the problems in the prior art such as complex process and difficult separation by providing a device for producing nickel buttons by swirl electrowinning, and provides a method for producing nickel buttons by using the device to solve the existing problems. There is a problem of low purity in the technology

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