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首页> 外文期刊>ISIJ international >Separation of Vanadium and Titanium Phase from the Vanadium Slag System Utilizing Supergravity
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Separation of Vanadium and Titanium Phase from the Vanadium Slag System Utilizing Supergravity

机译：利用SuperGravity的钒渣系统分离钒和钛阶段

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摘要

To effectively recycle and utilize vanadium and titanium resource from the vanadium slag, the crystallization and separation behaviors of V-spinel phase and Ti-spinel phase in the FeO-SiO_2-V_2O_3-TiO_2 system as the main components of vanadium slag were investigated. The results indicated that the suitable temperatures for precipitating V-spinel phase and Ti-spinel phase were chosen as 1 723 K and 1 623 K, respectively. With introduction supergravity at the parameter of G = 700, T = 1 723 K and t = 10 minutes, the solid V-containing phase was intercepted by the filter to form the V-enriched slag, while the residual melt went through the filter into the lower crucible to form the Ti-containing slag. And the mass fraction of V_2O_3 in the V-enriched slag reached about 32.98 wt% and that of TiO_2 in the Ti-containing slag reached about 19.41 wt%; the recovery ratios of V_2O_3 and TiO_2 were about 86.50% and 76.80%, respectively. In addition, the Ti-spinel phase was further separated and concentrated in the Ti-enriched slag from the Ti-containing slag with the gravity coefficient G = 500 at 1 623 K for 10 minutes. The mass fraction and the recovery ratio of TiO_2 in the Ti-enriched slag could reach 30.83 wt% and 89.80%, respectively. In the whole process, the comprehensive recovery ratio of TiO_2 could reach 68.97%.
机译：为了有效地回收和利用来自钒渣的钒和钛资源，研究了在FeO-SiO_2-V_2O_3-TiO_2系统中作为钒渣的主要成分的FeO-SiO_2-V_2O_3-TiO_2系统中的v-尖晶石相和Ti-smintel相的结晶和分离行为。结果表明，将用于沉淀V-尖晶石相和Ti-尖晶石相的合适温度分别选择为1 723k和1 623k。在G = 700，T = 1 723k和T = 10分钟的参数下引入超名度，通过过滤器拦截含固体的相位以形成V富集的炉渣，而残留熔体通过过滤器进入形成含Ti的炉渣的下坩埚。和富含V型芳渣中的V_2O_3的质量分数达到约32.98wt％，含Ti的渣中的TiO_2的达到约19.41wt％; V_2O_3和TiO_2的回收率分别为约86.50％和76.80％。另外，将Ti-尖晶石相进一步分离并在含Ti富含Ti的炉渣中浓缩，其重力系数G = 500在1 623k下10分钟。 Ti-富集渣中的TiO_2的质量分数和恢复比分别达到30.83wt％和89.80％。在整个过程中，TiO_2的综合复苏比率可达到68.97％。

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  • 来源
    《ISIJ international》 |2021年第3期|690-696|共7页
  • 作者

    Weijun HUANG; Yajing LIU;

  • 作者单位

    College of Materials Science and Engineering Hebei University of Engineering Handan 056038 China;

    College of Materials Science and Engineering Hebei University of Engineering Handan 056038 China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    vanadium slag; V-spinel phase; Ti-spinel phase; supergravity separation; concentrate;

    机译：钒渣;V-尖晶石阶段;Ti-Spinel相;超级分离;集中;

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