Resource-Saving Processing Technologies of Salt Slags on the Bottom of Aluminum Electrolyzers

摘要

The results of an investigation into salt slags on the bottom of an aluminum electrolyzcr under conditions of acting electrolysis production are presented. The mechanism of slag formation, the chemical composition, and some properties are considered. It is shown that this type of secondary raw material is potentially valuable for electrolysis production and that the effective search for efficient methods of its processing is necessary. Several variants are suggested that make it possible to include salt slags into production with minimal losses. Laboratory and pilot tests by the suggested methods are performed and the expected production and environmental effects are calculated.