Effect of Er(NO3)3 on thermal activation of kaolinite and alkaline reaction behavior of metakaolin
作者： Weiquan Yuan , Jingzhong Kuang , Mingming Yu , Zheyu Huang
DOI: 10.1016/J.POWTEC.2019.06.042
关键词:
摘要: Abstract This study investigated the products of kaolinite thermal activation and process alkaline reaction, using XRD, FTIR, 27Al MAS NMR, SEM, TEM XPS methods; moreover, effect Er(NO3)3 addition on this was analyzed. The results demonstrated that enhanced destruction microstructure in kaolinite, increased disorder degree, promoted transformation product from AlVI to AlV. With progress alkali reaction increase concentration, zeolite A phase gradually transformed into a sodalite by dealumination. In process, extra-framework aluminium derived dealumination enriched surface products. accelerated formation phase.
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