In this paper,the differences in the content of various impurity elements in the primary aluminum products of a 420 kA aluminum reduction cell of an aluminum enterprise are compared and analyzed versus the required composition of 3N aluminum products.Based on this,the sources of impurities introduced into each step of the aluminum electrolysis production process are analyzed.In view of the source of impurities,this paper proposes an improve-ment measure for the direct production of 3N aluminum by ordinary aluminum reduction cell,thus successfully producing 3N aluminum products with sta-ble quality.
维普
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