Impurity removal Common metal impurities are nickel, titanium, chromium, iron, aluminum, silicon, copper, manganese, zinc, sodium, etc. Non-metallic impurities include chloride, oxide and nitride. These impurities have a bad influence on the performance of metallic magnesium. Impurities such as iron, nickel and chloride will deteriorate the corrosion resistance of magnesium. Non-metallic impurities such as […]

  To produce metallic aluminum (electrolytic aluminum), the first step is to produce alumina. Almost all the alumina in the world is produced by alkali method, which is divided into Bayer method, sintering method and Bayer-sintering combined method, with Bayer method as the main method. It takes two tons of alumina to produce one ton

Pure metals refer to metals that do not contain other impurities or other metal components. Pure metal has the advantages of high electrical conductivity, thermal conductivity and good plasticity, but due to the limitations of its performance, it can not meet the requirements of various occasions. In fact, due to smelting reasons, the purity of