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首页> 外文会议>Energy technology 2018: Carbon dioxide management and other technologies >Preparation of Glass-Ceramic from Titanium-Bearing Blast Furnace Slag by 'Petrurgic' Method
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Preparation of Glass-Ceramic from Titanium-Bearing Blast Furnace Slag by 'Petrurgic' Method

机译：“ Petrurgic”法从含钛高炉渣中制备玻璃陶瓷

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摘要

Blast furnace slag is the main by-product discharged in the iron and steel industry and contains considerable waste heat at dischargeing temperature between 1450 and 1550 °C. To fully utilize waste heat and slag, this study directly converted high temperature liquid Ti-bearing blast furnace slag into glass-ceramics via the "Petrurgic" method. Samples at different crystallization temperature were prepared and its influence on crystal phases, pore structure, and compressive strength were investigated via SEM, XRD techniques, and compressive strength measurements. Results showed that all glass-ceramic samples contained main crystals of per-ovskite, diopside and gehlenite and had a qualified mechanical performance with compressive strength above 100 Mpa, which meets the requirement of Chinese national standard for natural granite stone. With increasing crystallization temperature, pore size decreased, while the size of the perovskite phase firstly decreased and then increased with decreasing crystallization temperature. Samples had an optimum crystallization temperature of 1215 °C, maximum grain size and a den-sified structure with minimal pore defect.
机译：高炉矿渣是钢铁行业排放的主要副产品，在1450至1550°C的排放温度下含有大量废热。为了充分利用废热和炉渣，本研究通过“ Petrurgic”方法将高温液态含钛高炉炉渣直接转化为玻璃陶瓷。制备了处于不同结晶温度的样品，并通过SEM，XRD技术和抗压强度测量研究了其对晶相，孔结构和抗压强度的影响。结果表明，所有玻璃陶瓷样品均含有钙钛矿，透辉石和钠钙石的主要晶体，并具有合格的机械性能，抗压强度在100 Mpa以上，符合中国天然花岗岩石材国家标准的要求。随着结晶温度的升高，孔尺寸减小，而钙钛矿相的尺寸先减小，然后随结晶温度的降低而增大。样品的最佳结晶温度为1215°C，具有最大的晶粒尺寸和具有最小孔隙缺陷的致密结构。

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  • 来源
  • 会议地点 Phoenix(US)
  • 作者

    Kuiyuan Chen; Yu Li; Long Meng; Yaodong Yi; Zhancheng Guo;

  • 作者单位

    State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, People's Republic of China;

    State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, People's Republic of China;

    State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, People's Republic of China;

    State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, People's Republic of China;

    State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, People's Republic of China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Ti-bearing blast furnace slag; "Petrurgic" method; Glass-ceramic Crystal temperature;

    机译：含钛高炉渣； “ Petrurgic”方法；微晶玻璃温度;

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