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Heat Treatment Process Optimization of Microcrystalline Cast Stone from Silico-manganese Slag by One-Step Preparation
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Xin XIN, Zexin TAN, Junxue ZHAO, Ailin HU, Ze WANG, Yi KANG, He WANG, Zhenkai ZHANG
Journal of the Chinese Ceramic Society | 2022, 50(6) : 1677 - 1684
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Journal of the Chinese Ceramic Society | 2022, 50(6): 1677-1684
• Research Articles •
Heat Treatment Process Optimization of Microcrystalline Cast Stone from Silico-manganese Slag by One-Step Preparation
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Xin XIN, Zexin TAN, Junxue ZHAO, Ailin HU, Ze WANG, Yi KANG, He WANG, Zhenkai ZHANG
Affiliations
  • School of Metallurgical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China

    • XIN Xin (1997-), female, Master candidate. E-mail:

About Author:

XIN Xin (1997-), female, Master candidate. E-mail:

Published: 2022-06-20 doi: 10.14062/j.issn.0454-5648.20210843
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Silico-manganese slag is a main solid waste produced from production of silicon-manganese alloy, which affects the environment. It is thus necessary to explore the corresponding disposal methods since the exsiting processing technology restricts the absorbing capacity. A microcrystalline cast stone was fabricated by the Petrurgic firing method with silico-manganese slag as a raw material. The bulk density, microhardness, flexural and compressive strength of the samples were determined. The influences of crystallization temperature and time on the phase structure and properties of the finished product were invesigated. The results show that a hot molten slag is cooled to 950 ℃ for 60 min and then annealed at 760 ℃, obtaing a microcrystalline cast stone with the superior properties. The microcrystalline cast stone has a compact structure, and the precipitated crystal phases are mainly clinopyroxene, diopside and aluminum diopside, as well as anorthite and wollastonite. The bulk density of the cast stone can reach 3.11×103 kg·m-3, the microhardness is 8.77×103 MPa, and the flexural strength and the compressive strength are 86 MPa and 222.9 MPa, respectively.

silico-manganese slag  /  microcrystalline cast stone  /  heat treatment process optimization  /  mechanical properties
辛鑫, 谭泽馨, 赵俊学, 胡爱琳, 王泽, 康毅, 王贺, 张桢凯. 硅锰渣一步法制备微晶铸石的热处理工艺及性能. 硅酸盐学报, 2022 , 50 (6) : 1677 -1684 . DOI: 10.14062/j.issn.0454-5648.20210843
Xin XIN, Zexin TAN, Junxue ZHAO, Ailin HU, Ze WANG, Yi KANG, He WANG, Zhenkai ZHANG. Heat Treatment Process Optimization of Microcrystalline Cast Stone from Silico-manganese Slag by One-Step Preparation[J]. Journal of the Chinese Ceramic Society, 2022 , 50 (6) : 1677 -1684 . DOI: 10.14062/j.issn.0454-5648.20210843
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Year 2022 volume 50 Issue 6
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Article Info
doi: 10.14062/j.issn.0454-5648.20210843
  • Receive Date：2021-09-28
  • Online Date：2026-10-22
  • Published：2022-06-20
Article Data
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History
  • Received：2021-09-28
  • Revised：2021-11-24
Funding
Affiliations
    School of Metallurgical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China

Corresponding:

ZHAO Junxue (1962-), male, Ph.D., Professor. E-mail:
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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