无机盐工业
主管:中海油天津化工研究设计院有限公司
主办:中海油天津化工研究设计院有限公司
   中海油炼油化工科学研究院(北京)有限公司
   中国化工学会无机酸碱盐专业委员会
ISSN 1006-4990 CN 12-1069/TQ

无机盐工业 ›› 2026, Vol. 58 ›› Issue (3): 106-111.doi: 10.19964/j.issn.1006-4990.2025-0064

• 环境·健康·安全 • 上一篇    下一篇

含钛高炉渣协同镍铁渣制备微晶玻璃研究

朱青德1,2(), 朱荣1(), 慕进文2   

  1. 1.北京科技大学碳中和研究院,北京 100083
    2.甘肃酒钢集团宏兴钢铁股份有限公司,甘肃 嘉峪关 735100
  • 收稿日期:2025-02-12 出版日期:2026-03-10 发布日期:2025-07-14
  • 通讯作者: 朱荣(1962— ),男,博士,主要从事绿色低碳钢铁冶金技术研究;E-mail:zhurong1201@126.com
  • 作者简介:朱青德(1987— ),男,硕士,主要从事钢铁冶金工艺流程优化、固废资源化利用应用研究;E-mail:zhuqingde@jiugang.com
  • 基金资助:
    国家自然科学基金项目(52293392);内蒙古自治区教育厅冶金工程一流学科科研专项项目(YLXKZX-NKD-041)

Study on preparation of glass-ceramics from titanium-bearing blast furnace slag synergized with nickel-iron slag

ZHU Qingde1,2(), ZHU Rong1(), MU Jinwen2   

  1. 1.Institute for Carbon Neutrality,University of Science and Technology Beijing,Beijing 100083,China
    2.Gansu Jiu Steel Group Hongxing Iron & Steel Co. ,ltd. ,Jiayuguan 735100,China
  • Received:2025-02-12 Published:2026-03-10 Online:2025-07-14

摘要:

含钛高炉渣与镍铁渣分别为钒钛磁铁矿及红土镍矿冶炼产生的大宗固体废弃物,因缺乏高效利用途径而大量堆存,造成严重的资源浪费和生态环境污染,亟需开发含钛高炉渣与镍铁渣资源化利用的新技术。以含钛高炉渣与镍铁渣为主要原料,辅以废玻璃补充SiO2,采用熔融法制备矿渣微晶玻璃,探究不同渣料比例对物相组成、析晶行为及性能的影响,进一步结合热力学计算、差示热分析(DTA)、X射线衍射(XRD)及扫描电镜(SEM),揭示含钛高炉渣-镍铁渣微晶玻璃析晶行为与微观结构的演变规律。结果表明:镍铁渣比例升高可细化晶粒尺寸,但过量添加(质量分数>40%)会引发含铬尖晶石相析出,抑制物相均匀性;当镍铁渣添加量为40%、晶化温度为950 ℃时,微晶玻璃综合性能最优,其密度、维氏硬度、吸水率及抗折强度分别为3.08 g/cm3、723.41 HV、0.02%和158 MPa,为含钛高炉渣和镍铁渣协同高值化利用提供理论与技术依据。

关键词: 微晶玻璃, 微观形貌, 含钛高炉渣, 镍铁渣, 固废资源循环

Abstract:

Titanium-bearing blast furnace slag and nickel-iron slag are by-products generated from vanadium titanomagnetite smelting and laterite nickel ore processing,respectively.Due to the lack of efficient utilization methods,they are largely stockpiled,occupying land resources and posing environmental risks.There is an urgent need to develop novel resource recovery approaches for these slags.In this study,titanium-bearing blast furnace slag and nickel-iron slag were utilized as primary raw materials,supplemented with waste glass to adjust SiO2 content,to prepare slag-based glass-ceramics via a melting method.The effects of slag proportions on phase composition,crystallization behavior,and properties were systematically investigated through thermodynamic equilibrium phase calculations,differential thermal analysis(DTA),X-ray diffraction(XRD),and scanning electron microscopy(SEM).The results indicated that increasing the nickel-iron slag content refined crystal grain size,but excessive addition(>40%) triggered the precipitation of chromium-containing spinel phases,compromising phase homogeneity.The optimal performance was achieved with 40% nickel-iron slag and a crystallization temperature of 950 ℃,yielding glass-ceramics with a density of 3.08 g/cm3,Vickers hardness of 723.41 HV,water absorption of 0.02%,and flexural strength of 158 MPa.This research provided theoretical and technical foundations for the synergistic high-value utilization of these industrial solid wastes.

Key words: glass-ceramics, microstructure, titanium-bearing blast furnace slag, nickel-iron slag, solid waste resource recycling

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