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Title of Journal: Res Chem Intermed

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Abbravation: Research on Chemical Intermediates

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Springer Netherlands

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DOI

10.1016/0049-3848(88)90095-3

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1568-5675

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Hydrothermal solidification of diatomaceous earth

Authors: Ke Wu Zhenzi Jing LiLi Pan Lei Zhou Emile Hideki Ishida
Publish Date: 2012/02/02
Volume: 38, Issue: 7, Pages: 1637-1646
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Abstract

Diatomaceous earth DE solidifies hydrothermally with analcime formation With analcime formation strength development was much greater than that with calcium silicate hydrate CSH formation NaOH addition conditioned analcime formation because NaOH solution not only promoted dissolution of quartz and montmorillonite but also provided Na+ to form the analcime Curing temperature and time affected analcime formation and in this study over 6 h at 200 °C and 175 °C for 12 h analcime seemed to form readily After hydrothermal treatment the skeletons of diatoms can still be seen in the solid after analcime formation but can hardly be found after CSH formation

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