06-06-2023 дата публикации
Номер: CN116219190A
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The invention discloses a zinc smelting method based on a chlorination process, which comprises the following steps: mixing zinc concentrate and auxiliary materials to obtain a mixed material; the mixed material is added into a smelting furnace, oxygen-enriched gas and chlorine are injected, smelting is conducted at the preset temperature, and smoke and smelting slag are obtained; the flue gas is subjected to condensation, and ZnCl2 is obtained; and ZnCl2 obtained through condensation is electrolyzed, and metal zinc and chlorine are obtained. According to the technology, chlorine and oxygen are adopted as oxidizing agents, ZnCl2 and FeCl2 are obtained through one-step smelting, zinc elements in raw materials are recycled while oxidative desulfurization smelting of the zinc concentrate is achieved, and investment is reduced. The Fe element in the raw materials can be recovered, and the metal recovery rate is high. Compared with other smelting processes, the adding amount of needed auxiliary ...
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