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含铬不锈钢渣制备钙长石-透辉石系微晶玻璃生成相模拟与试验探究

郭育良 金会心 肖媛丹 雷二帅 王正兴

郭育良, 金会心, 肖媛丹, 雷二帅, 王正兴. 含铬不锈钢渣制备钙长石-透辉石系微晶玻璃生成相模拟与试验探究[J]. 钢铁钒钛, 2022, 43(4): 94-99. doi: 10.7513/j.issn.1004-7638.2022.04.015
引用本文: 郭育良, 金会心, 肖媛丹, 雷二帅, 王正兴. 含铬不锈钢渣制备钙长石-透辉石系微晶玻璃生成相模拟与试验探究[J]. 钢铁钒钛, 2022, 43(4): 94-99. doi: 10.7513/j.issn.1004-7638.2022.04.015
Guo Yuliang, Jin Huixin, Xiao Yuandan, Lei Ershuai, Wang Zhengxing. Phase simulation and experiment of anorthite-diopside glass-ceramics based on stainless steel slag containing chromium[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(4): 94-99. doi: 10.7513/j.issn.1004-7638.2022.04.015
Citation: Guo Yuliang, Jin Huixin, Xiao Yuandan, Lei Ershuai, Wang Zhengxing. Phase simulation and experiment of anorthite-diopside glass-ceramics based on stainless steel slag containing chromium[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(4): 94-99. doi: 10.7513/j.issn.1004-7638.2022.04.015

含铬不锈钢渣制备钙长石-透辉石系微晶玻璃生成相模拟与试验探究

doi: 10.7513/j.issn.1004-7638.2022.04.015
基金项目: 国家自然科学基金(U1960201);国家自然科学基金(地区项目)(52164036);贵州省研究生科研基金(YJSCXJH[2020]185)
详细信息
    作者简介:

    郭育良(1997—),男,硕士研究生,研究方向:资源综合利用,E-mail:15675269020@163.com

    通讯作者:

    金会心(1972—),女,博士,教授,研究方向:轻金属冶金,资源综合利用,E-mail:hxjin@gzu.edu.cn

  • 中图分类号: X757,TQ171.1

Phase simulation and experiment of anorthite-diopside glass-ceramics based on stainless steel slag containing chromium

  • 摘要: 含铬不锈钢渣的大量堆存会导致铬元素的浸出而对环境造成严重的危害,微晶玻璃因其良好的固铬性能和物理性能而具有研究价值。为探究该体系中铬元素的赋存规律,用热力学软件FactSage 7.2对含铬不锈钢渣制备的钙长石-透辉石系微晶玻璃进行了生成相含量的模拟,以此为指导使用含铬不锈钢渣制备了钙长石-透辉石系微晶玻璃,并研究了助熔剂和铬含量对该体系微晶玻璃的结晶和物理性能的影响。结果表明,在模拟计算中,铬元素首先富集在尖晶石相中,最大富集度在10%~20%,多余的铬元素以Cr2O3的形式出现在体系中。在对应的试验探究中,当铬含量达到5%时,体系中的含铬相仍然只有尖晶石相,这使得材料有较好的固铬性能。助熔剂使微晶玻璃具有更高的硬度,铬浸出试验中钙长石-透辉石体系均未检出铬元素。该试验为含铬固体废弃物制备微晶玻璃提供了理论依据。
  • 图  1  用FaceSage 7.2计算的钙长石-透辉石体系生成相的摩尔量

    Figure  1.  Molar amount of phase formed in anorthite-diopside system by using FactSage 7.2

    图  2  用FaceSage 7.2计算的不同铬含量的生成相的摩尔量

    Figure  2.  Molar amount of formed phase with different chromium content by using FactSage 7.2

    图  3  1400 ℃时生成相中含铬相的变化

    Figure  3.  Chromium-containing phase variation in product at 1400 ℃

    图  4  不同原料制备的微晶玻璃XRD检测结果

    Figure  4.  XRD results of glass-ceramics prepared from different raw materials

    图  5  钢渣(a)与配置钢渣(b)的微观形貌

    Figure  5.  SEM of steel slag (a) and mixed steel slag (b)

    图  6  添加复合助熔剂的微晶玻璃微观形貌,b为a的局部放大图

    Figure  6.  SEM of glass-ceramics with composite flux, b is the enlarged view of a

    图  7  不同铬含量制备的微晶玻璃XRD检测结果

    Figure  7.  XRD results of glass-ceramics prepared with different chromium content

    图  8  不同铬含量微晶玻璃的微观形貌

    Figure  8.  SEM of glass-ceramics with different chromium content, a: 0.6%, b: 2%, c: 4%, d: 5%

    (a)0.6%;(b)2%;(c)4%;(d)5%

    图  9  铬含量对样品硬度及耐酸碱的影响

    Figure  9.  Effects of chromium content on hardness and corrosion resistance of samples

    表  1  主要原材料的化学组成

    Table  1.   Chemical composition of main raw materials

    成分EAF/%混合钢渣/%
    CaO51.921322.1288
    SiO228.421847.4188
    MgO5.89547.9302
    Al2O33.079420.153
    Cr2O31.41920.6048
    Fe2O33.2271.3753
    MnO0.9760.416
    下载: 导出CSV

    表  2  助熔剂对样品硬度及耐腐蚀性的影响

    Table  2.   Effect of flux on hardness and corrosion resistance of samples

    原料硬度(HV)失重率/%
    酸性环境碱性环境
    混合钢渣594.32.971
    助熔剂-混合钢渣30490.6670.446
    下载: 导出CSV

    表  3  铬浸出试验ICP-OES测试结果

    Table  3.   ICP-OES results of chromium leaching

    样品Cr/ (mg·L−1)
    EAF钢渣0.311
    混合钢渣未检出
    助熔剂-混合钢渣未检出
    Cr-2%未检出
    Cr-3%未检出
    Cr-4%未检出
    Cr-5%未检出
    下载: 导出CSV
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    Xv Changwei, Chen Yong, Meng Qihan, et al. Effects of Fluxes on Sintering and Properties of CaO-MgO-Al_2 O_3-SiO_2 Glass-ceramics[J]. Mater Rep, 2015, 29(S2): 443-445+488.
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出版历程
  • 收稿日期:  2022-02-09
  • 刊出日期:  2022-09-14

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