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 inCeramics international Vol. 44; no. 13; pp. 15611 - 15617
Main Authors Yuan, Jiangyan, Yang, Jing, Ma, Hongwen, Su, Shuangqing, Chang, Qianqian, Komarneni, Sridhar
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.09.2018
Subjects
Chemical weathering
Hydrothermal synthesis
K-feldspar
Kaolinite of paper-coating grade
Nano-kaolinite
Kaolinite of paper-coating grade
Hydrothermal synthesis
K-feldspar
Chemical weathering
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