RU1812234C - Blend for manufacturing agglomerate from vanadium-and titanium-containing materials - Google Patents

Abstract

Usage: black metallurgists, preparing raw materials for; melting. The inventive -3p, 0, solid fuel 3.0-7.0, aegirine 0, 0, iron ore: material 5.0-30.0, vanadium and titanium-containing material. Other: The resulting mixture is moistened, pelletized; sinter and cool. The implementation of the invention will allow expanding the raw material base, titanium magnet, increasing the strength of ag-: loyerate and the degree of extraction of vanadium into cast iron by sintering in the blast furnace furnace. 2 tab. -. -. :; :: V-:.; o C / T C

Description

The invention relates to the field of ferrous metallurgy, in particular to the preparation of raw materials for smelting. :: Additional introduction of aegi- .rin into the mixture during sintering of the agglomerate contributes to the destruction of spinels containing vanadium and to a decrease in their formation during sintering of the agglomerate. Replacing spinelides with more reducible phases contributes to an increase in vanadium recovery in cast iron. The content of aegirin in the mixture is determined by the process of spinelide destruction during sintering of the agglomerate. At less than 0.5% aegirin content in the charge, no damaging effect on spinelids was found. With greater than 6.0%

the content of aegirine in the mixture decreases the iron content in the sinter, increases the amount of slag-forming, which also reduces the extraction of vanadium in cast iron. Within the same limits, an increase in the strength of the agglomerate according to GOST 15137-77 is observed.

The invention is carried out as follows. The components of the mixture (composition in table, 1) are mixed; moisturize, pelletize, sinter and cool. As vanadium- and titanium-containing materials, chemical wastes of processing vanadium slag (experiments 1-6) and titanium-magnetite concentrate (experiments 7-12) are used. The size of the components of the charge is 0-3 mm. Additionally, aegirine is added to the charge in an amount

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0.25 ... 7.0%. The cooled agglomerate is tested for strength according to GOST 15137-77, after which it is melted in a mixture with coke to produce cast iron and slag. Chemical analysis determines the vanadium content of the smelting products and calculates the degree of extraction into cast iron. The test results are shown in table.2. ; .-;

Claims (1)

Analysis of the above results shows that the use of a mixture for the production of agglomerate from vanadium and titanium-containing materials helps to increase its strength and extract vanadium into cast iron from 82.0-86.2 to 84.6-89.0%. Formula of the invention: The mixture for production agglomerate from vanadium and titanium containing materials containing vanadium and titanium containing material, iron ore material, known to, solid fuel and a silicon-containing additive, characterized in that, in order to increase the recovery of vanadium in pig iron during sinter smelting in blast furnaces by reducing the amount of spinel and increasing strength, as a silicon-containing additive, the charge is kept aegirine in the following ratio components, wt.%: Known for 5.0-30.0; Solid fuel 3.0-7.0; Aegirine g; .ABOUT; Kelez material 5.0-30.0; Vanadium and titanium containing material Else. The content of basic koen nthG wt.% Table 1 Test results table 2