FIELD: metallurgy.
SUBSTANCE: invention relates to integrated use of raw materials in ferrous metallurgy, in particular to processing of blast-furnace slurries containing iron, zinc, sulfur and accompanying metal oxides, and can be used for extraction of blast-furnace gas cleaning slurries harmful for ferrous metallurgy chemical compounds of zinc, which prevents iron-containing material from being involved in metallurgical processing. For de-zincing of blast-furnace slurries one performs preliminary mixing with iron ore in ratio 1:1. Crushing is performed to fractions from 0.041 mm to 0.071 mm, after which magnetic separation is carried out in magnetic field with intensity of 88–110 kA/m.
EFFECT: method provides higher efficiency of de-zincing of blast-furnace gas cleaning slurries due to reduction of mass fraction of zinc in magnetic fraction at maximum output of magnetic fraction.
1 cl, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| PROCESS FOR EXTRACTION OF ZINC FROM BLAST FURNACE PRODUCTION SLIMES | 2004 |
|
RU2277597C2 |
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| PROCESSING METHOD OF UNCONDITIONED IRON- AND ZINC-CONTAINING METALLURGICAL WASTES | 2009 |
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| METHOD OF PROCESSING ZINC-CONTAINING WASTE OF FERROUS METALLURGY | 2005 |
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| METHOD OF PROCESSING ZINC-CONTAINING WASTE OF METALLURGICAL TECHNOLOGY | 0 |
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SU1610197A1 |
| METHOD OF PROCESSING OF ZINC-CONTAINING DUSTS AND SLAGS OF METALLURGY AND MINING PRODUCTION | 2006 |
|
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| METHOD OF TREATMENT OF IRON AND ZINC CONTAINING MATERIALS | 2006 |
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| COMPLEX PROCESSING OF METALLURGICAL AND MINING SLIMES | 2014 |
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| METHOD OF PRODUCING IRON ORE PELLETS | 2023 |
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| METHOD OF REPROCESSING OF ZINC-CONTAINING WASTE PRODUCTS OF METALLURGICAL PRODUCTION | 2003 |
|
RU2269580C2 |
