Hydrothermal synthesis of nano-kaolinite from K-feldspar

Development of sustainable routes for the synthesis of kaolinite in nano-scale (nano-kaolinite) is very significant for producing high quality kaolinite of paper-coating grade in kaolin industry. Duplicating chemical weathering processes in nature, two routes were developed and compared for the synt...

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Bibliographic Details
Published in:Ceramics international 2018-09, Vol.44 (13), p.15611-15617
Main Authors: Yuan, Jiangyan, Yang, Jing, Ma, Hongwen, Su, Shuangqing, Chang, Qianqian, Komarneni, Sridhar
Format: Article
Language:English
Subjects:
Chemical weathering
Hydrothermal synthesis
K-feldspar
Kaolinite of paper-coating grade
Nano-kaolinite
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Summary:Development of sustainable routes for the synthesis of kaolinite in nano-scale (nano-kaolinite) is very significant for producing high quality kaolinite of paper-coating grade in kaolin industry. Duplicating chemical weathering processes in nature, two routes were developed and compared for the synthesis of nano-kaolinite from K-feldspar. Kaolinite of uniform plate-like morphology with thickness of around 14 nm was obtained in this study. Both synthesis routes may lead to the comprehensive utilization of K-feldspar for the synthesis of pure kaolinite for not only high quality paper-coatings but also medical and other uses.
ISSN:0272-8842
1873-3956
DOI:10.1016/j.ceramint.2018.05.227