Journal of the Chinese Ceramic Society, Volume. 52, Issue 10, 3142(2024)
Mineralogical Properties, Phase Transformation, and Reactivity Activation of Iron-Rich Coal-Measure Kaolin Clay During Calcination
The extraction and utilization of coal inevitably lead to the generation of significant solid waste, including coal gangue. This byproduct is rich in kaolin mineral resources, and their effective utilization presents a critical strategy for the management of such a bulk solid waste, offering substantial environmental and economic benefits. The processing methodologies are often hindered by the inherent mineralogical properties of the materials. Kaolinite minerals are central to the chemical reactivity in calcined coal kaolin clay, the content and characteristics of kaolinite can vary significantly in different coal kaolin sources due to the diversity in coal-forming geological conditions. It is thus necessary to clarify the mineralogical properties of kaolinite from various sources for the innovative application of coal gangue. In this paper, a high-iron coal-series kaolin clay was analyzed. In addition, the impact of mineralogical properties on the thermal activation and preparation of calcined kaolin clay was also investigated.
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YANG Hongmei, WU Xiao, YANG Yiping, SU Xiaoli, WANG Fuya, ZHU Jianxi, HE Hongping. Mineralogical Properties, Phase Transformation, and Reactivity Activation of Iron-Rich Coal-Measure Kaolin Clay During Calcination[J]. Journal of the Chinese Ceramic Society, 2024, 52(10): 3142
Received: Feb. 22, 2024
Accepted: --
Published Online: Nov. 14, 2024
The Author Email: Xiao WU (wuxiao@gig.ac.cn)