Al-F-Cl electrolyte system

Abstract

The present invention relates to electrolyte for producing refined aluminum, and is especially aluminum-refining F-Cl electrolyte system. The F-Cl electrolyte system consists of barium chloride 55-65 wt%, cryolite 19-23 wt%, aluminum fluoride 13-17 wt% and sodium chloride 3-5 wt%. The F-Cl electrolyte system has reasonable formulation and ideal use effect, and can be used to obtain reasonable initial crystallizing temperature and lower electrolyte loss and avoid firing, electrolyte overflow, etc.

Description

technical field [0001] The invention relates to an electrolyte used in the production of refined aluminum, in particular to a refined aluminum fluorine chlorine system electrolyte. Background technique [0002] The production of refined aluminum usually adopts a three-layer electrolysis method, in which the middle layer is the electrolyte layer. The electrolyte used in the production of refined aluminum is divided into two systems: fluorine chlorine system and pure fluorine system. Most enterprises in my country use fluorine-chlorine system electrolytes. Whether the formula of the electrolyte used is accurate and reasonable is directly related to the quality of refined aluminum. Unreasonable electrolyte ratio will cause fire, electrolyte overturning and other phenomena. The effect of the existing electrolyte ratio for refined aluminum production is not ideal. Contents of the invention [0003] The invention solves the problem of unsatisfactory use effect of the electro...

AI Technical Summary

Problems solved by technology

[0003] The invention solves the problem that the use effect of the electrolyte used in the production of refined aluminum is not ideal, and provides a refined aluminum fluorine chloride system electrolyte with reasonable proportion and ideal use effect