One-Step Hydrothermal Synthesis of Magnesium Hydroxide Sulfate Hydrate Whiskers Using Brine as Raw Material

Abstract:

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Magnesium hydroxide sulfate hydrate (MHSH) whiskers were prepared using brine, sodium hydroxide and sodium sulfate as raw materials by one-step hydrothermal process. X-ray powder diffraction (XRD), thermal analysis (TG-DTG) and scanning electron microscope (SEM) were employed to characterize the MHSH whiskers. It was shown that the MHSH whiskers were MgSO4•5Mg(OH)2 •2H2O with a diameter of 0.2–0.3 μm and a length of 20–30 μm . The thermal decomposition of MHSH whisker was demonstrated a three-step scheme based on the TG-DTG data. The utilization ratio of magnesium in brine was above 80%.

Info:

Periodical:

Advanced Materials Research (Volumes 233-235)

Edited by:

Zhong Cao, Lixian Sun, Xueqiang Cao, Yinghe He

Pages:

2545-2548

DOI:

10.4028/www.scientific.net/AMR.233-235.2545

Citation:

D. Y. Li et al., "One-Step Hydrothermal Synthesis of Magnesium Hydroxide Sulfate Hydrate Whiskers Using Brine as Raw Material", Advanced Materials Research, Vols. 233-235, pp. 2545-2548, 2011

Online since:

May 2011

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Price:

$35.00

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