Method for producing zinc-containing material by using blast furnace dust

Abstract

The invention provides a method for producing a zinc-containing material by using blast furnace dust. According to the method, a zinc-containing compound in the blast furnace dust is effectively separated and extracted mainly by a wet refining manner, so that the zinc-containing compound is effectively prevented from being lost in other refining processes, and the enrichment degree of the zinc-containing compound in the blast furnace dust is further improved. In addition, the refining processes of the zinc-containing material are effectively simplified, so that the cost for recycling the zinc-containing material from the blast furnace dust is reduced.

Description

technical field [0001] The invention relates to the technical field of blast furnace dust recycling, in particular to a method for producing zinc-containing materials by using blast furnace dust. Background technique [0002] In the process of blast furnace steelmaking, a large amount of high-temperature and dispersed particulate dust will be produced, and these dusts usually contain a large amount of valuable metals. The dust contains many valuable metals such as lead and zinc, which means that the blast furnace dust produced by blast furnace steelmaking is not completely worthless. If blast furnace dust is allowed to scatter during blast furnace steelmaking, it will not only seriously pollute the environment, but also cause a huge waste of valuable metal materials. Although the prior art already exists to recover zinc oxide materials for blast furnace dust, the zinc oxide obtained by this recovery method is basically in the shape of coarse zinc oxide, which has a high imp...

AI Technical Summary

Problems solved by technology

If blast furnace dust is allowed to fly during blast furnace steelmaking, it will not only seriously pollute the environment, but also cause a huge waste of valuable metal materials

Although the prior art already exists to recover zinc oxide materials for blast furnace dust, the zinc oxide obtained by this recovery method is basically in the shape of coarse zinc oxide, which has a high impurity content and a reduced zinc content, which leads to the impact on blast furnace dust. The zinc recovery rate is low, and at the same time, the crude zinc oxide needs to be refined and purified, which further increases the process complexity and recovery cost of blast furnace dust recovery

It can be seen that the existing technology for recycling and refining zinc-containing materials from blast furnace dust is not only inefficient, but also has complicated procedures, which does not improve the economic and social benefits of blast furnace dust recovery

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