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  • Title: Mineralogical characterisation and magnetic separation of vanadium-bearing converter slag.
    Author: Xiang J, Huang Q, Lv W, Pei G, Lv X, Liu S.
    Journal: Waste Manag Res; 2018 Nov; 36(11):1083-1091. PubMed ID: 30198425.
    Abstract:
    The recycling of metallic iron is commonly the first step to fully use the converter slag, which is the biggest waste discharge in the steelmaking process. This study presents a proposed improved process of separating metallic iron from vanadium-bearing converter slag more efficiently. The mineralogical and morphological characteristics of the converter slag were first investigated, and the results showed that most of the iron was incorporated in the spinel and olivine. Grinding, sieving and magnetic separation were combined to recover metallic iron from the converter slag, and yielded approximately 41.5% of iron in which the iron content was as high as 85%, and the non-magnetic concentrate contains 8.56% vanadium with a yield of 95.3% and 8.63% titanium with a yield of 85.3%. The magnetic part can be used as the raw materials in the steel making process, whereas the non-magnetic part can be used as the raw materials for the further extraction of vanadium.
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