Electrolyte for producing industrial metal sodium

Abstract

This invention belongs to the production technology of industrial metal natrium. The electrolyte used in electrolytic bath has the following weight %: Nacl 16-26%, Bacl2 44-54%, Cacl2 25-35%. The content of Bacl2 is increased from 5-15% to 44-54%, and the content of Cacl2 is reduced from 50-60% to 25-35%. So the temperature of electrolytic bath is reduced to 550-590DEG C. It also resolves the problem that calcium is easy to solidate during rising of natrium-calcium mix. Because barium will not mix and rise with natrium, and a few of calcium will not affect liquidity of natrium in electrolyte, so the viscosity of which is reduced significently. The average effeciency is more than 78%.

Description

technical field [0001] The invention belongs to the production technology of industrial sodium metal, and mainly relates to the production of electrolytes for industrial sodium metal electrolytic cells. Background technique [0002] In the production of industrial sodium metal, the electrolysis principle of the single-anode electrolytic cell salt method sodium production technology is: after the sodium chloride is heated and melted, the positively charged sodium ions become free to move and become the second type of ion-conducting conductor. Finally, under the action of the electric field, the positively charged sodium ions move to the cathode and become sodium atoms after receiving an electron on the cathode, the sodium atoms gather to form metallic sodium, and the negatively charged chloride ions move to the anode and Lose an electron to become a chlorine atom, and the chlorine atom produces chlorine gas. In the process of electrolysis, it must be carried out with the hel...

AI Technical Summary

Problems solved by technology

However, strictly speaking, the electrolytic efficiency of the sodium production process has a lot to do with the climate and environment in the area.

The technology of RMI company in the United States is introduced to reduce the temperature of the tank. Firstly, it depends on the proportion of electrolyte, and secondly, it relies on the axial flow fan on the top layer to perform forced air cooling. In the process of rising, calcium and sodium are a mixture, the temperature drops, and the calcium solidifies faster, which leads to the unsmooth sodium collection device of the rising pipe of the electrolytic cell, causing the electrolytic cell to hold sodium, but not to release sodium, the sodium pipeline is blocked, and the burning A series of problems, such as sodium, cannot be fundamentally solved, resulting in the deterioration of the working environment and the increase of labor intensity of workers