Method for producing high-quality Al99.90 products by using 500kA aluminum electrolysis cell

The invention relates to the technical field of aluminum electrolysis production, in particular to a method for producing high-quality Al99.90 products by using a traditional electrolysis equipment 500kA aluminum electrolysis cell. By improving the specific process steps of electrolytic aluminum production, the content of impurities such as iron and silicon is controlled, the ratio of aluminum oxide of covering materials sealing an anode and a shell surface is increased, the iron removal effect of broken materials is improved, high-quality dry fluoride is used, technical conditions of an aluminum electrolysis production process with resistance to temperature change is adopted, the furnace side thickness and the electrolyte level are kept stable, a non-pollution aluminum oxide anodic steelclaw protection ring is used, a special aluminum discharging, mixing furnace and casting equipment technology is adopted, and high-quality above Al99.90 products are produced. The high-quality Al99.90products can be produced