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Recycling of Zinc from the Steelmaking Dust in the Sintering Process

机译：从烧结过程中的炼钢粉尘回收锌的再循环

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摘要

During the steel scrap melting process in an electric arc furnaces, the generated dust may contain a significant amount of zinc. The content of zinc in case of melting galvanized steel scrap is variable and ranges from 15 to 40 wt%. This dust cannot be re-used for the steelmaking process. On the other hand the zinc content is too low to treat the steel dust as a feedstock in pyrometallurgy of zinc. When they are disposed in landfills they have adversely effect the environment. This work presents selected results of research and development of new technology, which was developed in order to utilization steelmaking dust in the sintering process. One of the products (zinc-rich) can be used as a high-quality raw material for production of zinc by pyro- or hydrometallurgical processes. The second one product from the shaft furnace can be used as a feedstock for the steelmaking process.
机译：在电弧炉中的钢废料过程中，所产生的灰尘可能含有大量的锌。熔化镀锌钢废料的情况下，锌的含量是可变的，范围为15至40wt％。这种灰尘不能重新用于炼钢过程。另一方面，锌含量太低，不能将钢粉尘视为锌的Pyromate冶金中的原料。当他们在垃圾填埋场中，它们对环境产生不利影响。这项工作提出了新技术的研究与开发的选定结果，该研究是为了在烧结过程中使用炼钢粉尘而开发的。其中一种产品（富含锌）可用作通过波形或湿法冶金工艺生产锌的优质原料。来自轴炉的第二个产品可用作炼钢工艺的原料。

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