Turbulent electrodeposition method and matching device and modular expansion scheme

Abstract

The invention belongs to the technical field of electrodeposition, and in particular relates to a turbulent electrowinning method, which utilizes the high-speed turbulent surge of the electrolyte solution in the limited cathode and anode tubular spaces to eliminate the concentration difference caused by the electrodeposition reaction rate being greater than the ion diffusion reaction rate. It is a new type of electrodeposition technology that is especially suitable for metallurgy and non-ferrous metal resource regeneration industries to recover cathode precipitated metals from complex solution containing ferrous metal ions. The modular expansion scheme of the supporting equipment of the electrowinning method, compared with the traditional plate tank open electrodeposition tank, has fewer side reactions during the operation of the turbulent electrowinning equipment, high direct current efficiency, and the acid gas generated can be collected and disposed of in a centralized manner. The installation of the equipment unit is simple, the retention of solution in the system is small, and the process adaptability is strong. With the development of the market, the improvement of technology and the increase of users, it will eventually have the ability to replace traditional electrodeposition equipment. The new development direction of technology.

Description

technical field [0001] The invention belongs to the technical field of electrodeposition, and in particular relates to a turbulent electrodeposition method, a matching device and a modular expansion scheme. Background technique [0002] Electrodeposition technology refers to the process in which simple metal ions or complex ions are reduced to metal atoms on the surface of solid (conductor or semiconductor) by electrochemical methods and attached to the electrode surface, thereby obtaining a metal deposition layer. In various electrodeposition reactions, Regardless of the type of electrolyte solution, the discharge reaction of anions and cations on the anode and cathode electrodes follows the sequence of the ion's solution precipitation potential and electrochemical equivalent. It moves towards the anode and cathode, drains the solution on the surface of the plate, and then completes the discharge reaction on the cathode and anode. When the current intensity is low, the diff...

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Problems solved by technology

[0003] The present invention provides a turbulent electrowinning method, ancillary devices and a modular expansion scheme to solve the problem of concentration polarization in the prior art, which is caused by the electrodeposition reaction rate being greater than the ion diffusion reaction rate.

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