Open AccessEstimation of influence of the mineral composition of ore bodies of titanomagnetites of the Gusevogorskoye deposit on the concentration of vanadium in the products of their processing
Author(s) -
Vasiliy Nikolaevich Buzmakov,
Jsc ʺEVRAZ KGOKʺ,
Yuliya Vasil’evna Volodina
Publication year - 2020
Publication title -
izvestiâ uralʹskogo gosudarstvennogo gornogo universiteta
Language(s) - English
Resource type - Journals
eISSN - 2500-2414
pISSN - 2307-2091
DOI - 10.21440/2307-2091-2020-3-62-68
Subject(s) - vanadium , metallurgy , pentoxide , titanium , smelting , materials science , fineness , blast furnace , extraction (chemistry) , mineral , mineralogy , chemistry , chromatography
Purpose of the work: to study the possibilities of increasing the extraction of vanadium pentoxide and reducing titanium dioxide into concentrate at EVRAZ KGOK. However, vanadium pentoxide and titanium dioxide are closely interconnected due to the complex mineral composition of the ores, which, in turn, is due to the genesis of the deposit. As a consequence, a decrease in the titanium content causes a decrease in the vanadium content. Relevance. EVRAZ KGOK develops the Kachkanar group of titanomagnetite iron ore deposits containing vanadium impurities, which make it possible to smelt high-strength alloyed steels. Impurities of titanium negatively affect the subsequent blast-furnace conversion and increase the cost of the smelting process. Methodology. To determine the extraction of vanadium pentoxide into the concentrate, magnetic analysis on a Davis tube, sieve analysis of the fineness of grind and statistical processing of the data were used. Results. The deposit is being developed in four ore bodies with different mineral and petrographic composition and, accordingly, different enrichment results. During the concentration conversion, part of the vanadium is lost in the tailings of enrichment. To ensure the planned content of vanadium in the concentrate, the ratio “proportion of vanadium pentoxide / proportion of iron in the original ore” should be at least 0.0077 (in each batch). Conclusions. To ensure the proportion of vanadium in the products of concentrate processing, it is necessary to control the process of shipping ores using information on the proportion of vanadium that can be recovered. Control should be carried out according to the indicator “the ratio of the proportion of vanadium and the proportion of iron in the original ore.” Corrective actions should be taken by changing the proportion of ore shipped from various ore bodies.