华南理工大学学报(自然科学版) ›› 2003, Vol. 31 ›› Issue (6): 88-90.

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高纯微细氢氧化镁的水热法制备

吴会军向兰朱冬生2   

  1. 1、清华大学 化学工程系, 北京 100084 2、华南理工大学 传热强化与过程节能教育部重点实验室, 广东 广州 510640
  • 出版日期:2003-06-20 发布日期:2022-09-08
  • 通信作者: 吴会军(1978一),男,华南理工大学博士研究生,主要从事传热与节能、吸附制冷、CFD模拟计算等方面的研究。
  • 作者简介:吴会军(1978一),男,华南理工大学博士研究生,主要从事传热与节能、吸附制冷、CFD模拟计算等方面的研究。

Hydrothermal Preparation of Magnesium Hydroxide Particles with High Purity and Small Size

WU Huijun XIANG Lan ZHU Dongsheng   

  • Online:2003-06-20 Published:2022-09-08
  • Contact: 吴会军(1978一),男,华南理工大学博士研究生,主要从事传热与节能、吸附制冷、CFD模拟计算等方面的研究。
  • About author:吴会军(1978一),男,华南理工大学博士研究生,主要从事传热与节能、吸附制冷、CFD模拟计算等方面的研究。

摘要: 以国内丰富的镁资源为应用背景,借助SEM、X荧光光谱仪等现代测试手段,研究水热枝术在制备高纯微细氢氧化镁中的应用,测试结果表明水热技术使氢氧化镁平均粒径明显增大,晶型发育完善,纯度提高,有助于改善氢氧化镁作为高效阻燃剂在合成材料中的分散和阻燃性能,为海水镁资源的有效利用提供了适宜的处理途径.

关键词: 氢氧化镁, 水热技术, 形貌, 除杂

Abstract: With the aim of utilization of rich magnesium resources in China, magnesium hydroxide particles with high purity and small size has been synthesized by hydrothermal method. Preparation experiments were conducted in the presence or absence of hydrothermal treatment. The products were characterized by means of modem instruments as scanning electron microscopy (SEM) and X-fluorescence analysis. The experimental results indicate that magnesium hydroxide particles with perfect morphology, larger size and higher purity were formed after hydrothermal treatment, which was favorable for the dispersion of magnesium hydroxide in composite materials. The present work provided a possible route for the efficient utilization of magnesium resources in sea water.

Key words: magnesium hydroxide, hydrothermal method, morphology, impurity removal