ZINC REPRODUCTION METHOD OF ZINC DROSS

摘要

A Zn reproduce method of the Zn dross is provided to reproduce the zinc of the high purity of the property which desires since effectively removing impurity remaining behind among the molten metal by using a sublimate material or 1iquid nitrogen gas. A Zn reproduce method of the Zn dross performing the first process of exhausting and removing the impurity in which dissolves the Zn dross and in which agitates and which rises to the top of the molten metal, the first process of injecting aluminum in the molten metal in which the first process is performed and agitating and exhausting and removing the impurity which rises to the upper part of molten metal and the second process of exhausting and removing the impurity in which injects the sublimate material for promoting the inter metallic compound generation of impurity less than the triple point temperature 500°C in the molten metal in which the second process is performed and in which agitates and in which rises among the molten metal or which is precipitated.