[China Aluminum Industry Network] aluminum refining (refining of aluminium)
Remove the impurities of industrial pure aluminum and produce refined aluminum or high purity aluminum. General industrial pure aluminum refers to the production of aluminum in industrial aluminum reduction cells using cryolite-alumina molten salt electrolysis method, also known as primary aluminum, with a purity of 99.5% to 99.8%, which is a large amount of Aluminum products are widely used in various sectors of the national economy. However, in some special fields, it is necessary to use higher purity aluminum, including refined aluminum, with a purity of 99.99%, and high purity aluminum with a purity of 99.999% or more. Aluminum three-layer liquid electrolytic refining method is usually used to produce refined aluminum; while high-purity aluminum production is usually directional solidification method, regional melting method, organic solution electrolysis method, or a combination of several methods of refining methods.
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