Effect of Na3PO4·12H2O on foam glass-ceramics prepared from high titanium blast furnace slag

Wang Haibo; Sun Qingzhu; Zhang Xuefeng; Wang Benju

doi:10.7513/j.issn.1004-7638.2021.04.010

Volume 42 Issue 4

Aug. 2021

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Wang Haibo, Sun Qingzhu, Zhang Xuefeng, Wang Benju. Effect of Na3PO4·12H2O on foam glass-ceramics prepared from high titanium blast furnace slag[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(4): 57-61. doi: 10.7513/j.issn.1004-7638.2021.04.010

Citation:

Wang Haibo, Sun Qingzhu, Zhang Xuefeng, Wang Benju. Effect of Na₃PO₄·12H₂O on foam glass-ceramics prepared from high titanium blast furnace slag[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(4): 57-61. doi: 10.7513/j.issn.1004-7638.2021.04.010

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Effect of Na₃PO₄·12H₂O on foam glass-ceramics prepared from high titanium blast furnace slag

doi: 10.7513/j.issn.1004-7638.2021.04.010

1.
College of Vanadium and Titanium, Panzhihua University, Panzhihua 617000, Sichuan, China
2.
Vanadium and Titanium Resources Comprehensive Utilization Key Laboratory of Sichuan Province, Panzhihua 617000, Sichuan, China
3.
Public Experimental Teaching Center, Panzhihua University, Panzhihua 617000, Sichuan, China

Received Date: 2021-07-22
Publish Date: 2021-08-10

Abstract

Abstract

Foam glass-ceramics was prepared by one step sintering method at 900 ℃, using high titanium blast furnace slag and waste glass powder as the main raw materials, with calcium carbonate and borax as the foaming agent and fluxing agent, respectively. The effects of Na₃PO₄·12H₂O on the foam glass-ceramics were investigated by DSC, XRD and SEM. The results show that the main phase compositions of the glass-ceramics, which include diopside Ca(Mg, Al)(Si, Al)₂O₆, iron-rich common pyroxene Ca(Mg, Fe)(Si, Fe)₂O₆ and common pyroxene CaMgSi₂O₆, change scarcely with the variation of Na₃PO₄·12H₂O addition (0% to 10%, mass fraction). As the content of Na₃PO₄·12H₂O increases, the compressive strength and thermal conductivity of the foam glass-ceramics decrease, while the bulk density and water absorption decrease first and then increase. At the Na₃PO₄·12H₂O content of 6%, the foam glass-ceramics has the best comprehensive performances.
- high-titanium blast furnace slag,
- foam glass-ceramics,
- Na₃PO₄·12H₂O,
- compressive strength,
- bulk density,
- thermal conductivity,
- water absorption

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References

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