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碳热还原制备金属钒技术研究

李兰杰 常福增 刘静 张娜 张苏新 王海旭

李兰杰, 常福增, 刘静, 张娜, 张苏新, 王海旭. 碳热还原制备金属钒技术研究[J]. 钢铁钒钛, 2024, 45(2): 1-6. doi: 10.7513/j.issn.1004-7638.2024.02.001
引用本文: 李兰杰, 常福增, 刘静, 张娜, 张苏新, 王海旭. 碳热还原制备金属钒技术研究[J]. 钢铁钒钛, 2024, 45(2): 1-6. doi: 10.7513/j.issn.1004-7638.2024.02.001
Li Lanjie, Chang Fuzeng, Liu Jing, Zhang Na, Zhang Suxin, Wang Haixu. Research on preparation of metal vanadium by carbothermal reduction[J]. IRON STEEL VANADIUM TITANIUM, 2024, 45(2): 1-6. doi: 10.7513/j.issn.1004-7638.2024.02.001
Citation: Li Lanjie, Chang Fuzeng, Liu Jing, Zhang Na, Zhang Suxin, Wang Haixu. Research on preparation of metal vanadium by carbothermal reduction[J]. IRON STEEL VANADIUM TITANIUM, 2024, 45(2): 1-6. doi: 10.7513/j.issn.1004-7638.2024.02.001

碳热还原制备金属钒技术研究

doi: 10.7513/j.issn.1004-7638.2024.02.001
基金项目: 河北省重点研发计划资助项目(编号:20311008D);河北省自然科学基金资助项目(编号:B2022318001)。
详细信息
    作者简介:

    张苏新,1984年出生,男,山东单县人,研究生,高级工程师,通讯作者,主要从事钒钛新材料研究工作,E-mail:zhsx455@126.com

    通讯作者:

    张苏新,1984年出生,男,山东单县人,研究生,高级工程师,通讯作者,主要从事钒钛新材料研究工作,E-mail:zhsx455@126.com

  • 中图分类号: TF841.3

Research on preparation of metal vanadium by carbothermal reduction

  • 摘要: 以高纯V2O5粉末为原料,C粉末为还原剂,对碳热还原制备金属钒过程进行研究,重点讨论了配碳量、温度、真空度和还原时间对钒中间体和精炼提纯过程的影响。结果表明,V2O5为逐级还原,存在直接和间接还原。配碳比32%,还原温度控制在1350 ℃,保温时间为120 min时,得到的粗钒固溶体相以<VO,V2C>为主,钒含量为84%左右。精炼提纯条件为温度1680 ℃,碳氧比1.02,真空度在0.1 Pa以下时,能得到延展性金属钒产品,纯度达到99.04%。
  • 图  1  钒的氧化和还原吉布斯自由能

    Figure  1.  Gibbs free energy of oxidation and reduction of vanadium

    图  2  温度对V-C-O样品中还原度的影响

    Figure  2.  Effect of temperature on reduction in V-C-O samples

    图  3  配碳比对样品各元素的影响

    Figure  3.  The influence of carbon ratio on the elements of the sample

    图  4  保温时间对粗钒还原率的影响

    Figure  4.  Effect of holding time on degree of reduction for crude vanadium

    图  5  不同配碳比下钒中间体的XRD谱

    Figure  5.  XRD patterns of the vanadium intermediates at different ratio of carbon to crude vanadium

    图  6  最高温度变化对样品中V含量的影响

    Figure  6.  Effect of maximum temperature change on V content in samples

    图  7  碳氧比对样品中V含量的影响

    Figure  7.  Effect of carbon/oxygen ratio on V content in samples

    图  8  真空度对样品中V含量的影响

    Figure  8.  Influence of vacuum degree on V content in sample

    图  9  粗钒提纯过程中温度及压力变化情况

    Figure  9.  Changes of temperature and pressure during the purification of crude vanadium

    图  10  精炼产品物相

    Figure  10.  Phase diagram of the refined product

    表  1  产品成分ICP分析

    Table  1.   ICP analysis of product composition %

    VCOAlCaCrFeMgMnSi
    99.040.2310.0980.07870.1610.0050.11060.01410.0090.0794
    下载: 导出CSV
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出版历程
  • 收稿日期:  2024-02-08
  • 网络出版日期:  2024-05-14
  • 刊出日期:  2024-04-30

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