Electrolytic cell for molten salt electrolysis

Abstract

An electrolytic cell for molten salt electrolysis comprises a bracket, a cell being a U-shaped cylinder disposed on the bracket, with a liquid inlet and a liquid outlet disposed on the two ends of the cell, a seal cover plate disposed on one end of the cell, a reticulate cylindrical anode and a reticulate cylindrical cathode disposed in the cell, and a diaphragm disposed in the middle of the cell and between the anode and the cathode. The liquid inlet and the liquid outlet are disposed on the highest point and the lowest point of the two ends of the cell, respectively; the seal cover plate is connected with the cell in a concave-convex close fitting mode; the diameters of the anode and the cathode are equal to each other and less than or equal to the inside diameter of the cell; and the anode and the cathode are concentric with each other. The invention has a simple structure, easy independent replacement of electrodes and a small interelectrode distance, and therefore, the bubble effect is reduced, with small voltage and low power consumption.

Description

technical field [0001] The invention relates to an electrolytic cell for molten salt electrolysis, in particular to an electrolytic cell for producing rare earth metals. Background technique [0002] The electrolytic cell used for the production of rare earth metals by the molten salt electrolysis method now has both the cell body and the electrolytic electrodes as containers. When in use, put the electrode in the tank. Since the electrode is a container, when changing the tank or changing the electrode, it is necessary to stop the tank and cool down before taking out the electrode together with the electrolyte in it, resulting in a long time for changing the tank. Working hours are reduced, production is reduced, and a large amount of energy is consumed in the process of cooling down and restarting the tank. Moreover, the installation of the traditional electrolytic cell for molten salt electrolysis is not compact enough, the electrode spacing is large, and the electrodes ...

AI Technical Summary

Problems solved by technology

When in use, put the electrode in the tank. Since the electrode is a container, when changing the tank or changing the electrode, you must stop the tank to cool down before taking out the electrode together with the electrolyte in it, resulting in a long time for changing the tank. man-hours, reduce production, and consume a lot of energy in the process of cooling down and restarting the tank

Moreover, the installation of the traditional electrolytic cell for molten salt electrolysis is not compact enough, the electrode spacing is large, and the electrodes are not easy to connect. During the production process, because a large amount of gas is deposited on the surface of the electrode, a large number of bubbles will be generated, which will reduce the working area of ​​the electrode. , increase solution resistance, reduce production efficiency

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