| 氢氧化镁热分解法制备活性氧化镁(英文) |
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| 引用本文： | 刘涛,马鹏程,于景坤,李琳,刘晓明,马北越.氢氧化镁热分解法制备活性氧化镁(英文)[J].硅酸盐学报,2010,38(7). |
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| 作者姓名： | 刘涛 马鹏程 于景坤 李琳 刘晓明 马北越 |
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| 作者单位： | 1. 东北大学材料与冶金学院,沈阳,110004
2. 沈阳航空航天大学理学院,沈阳,110034 |
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| 摘 要： | 以氢氧化镁为原料通过热分解法制备了活性氧化镁粉体。利用X射线衍射仪、扫描电镜、压汞仪和热分析仪对粉体进行了表征。结果表明:氢氧化镁通过一步分解生成氧化镁,质量损失率为30.8%,与理论计算质量损失率相吻合。当煅烧温度从400℃增加到600℃,颗粒状氢氧化镁分解生成片状氧化镁。当煅烧温度为550℃,保温10min后,氢氧化镁完全分解,吸碘值达到最大值,为83.6mg/g。
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| 关 键 词： | 氢氧化镁 氧化镁 热分解 吸碘值 |
PREPARATION OF MgO BY THERMAL DECOMPOSITION OF Mg(OH)2 |
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| LIU Tao,MA Pengcheng,YU Jingkun,LI Lin,LIUXiaoming,MA Beiyue.PREPARATION OF MgO BY THERMAL DECOMPOSITION OF Mg(OH)2[J].Journal of The Chinese Ceramic Society,2010,38(7). |
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| Authors: | LIU Tao MA Pengcheng YU Jingkun LI Lin LIUXiaoming MA Beiyue |
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| Abstract: | Active magnesium oxide was prepared by thermal decomposition method using Mg(OH)2 as raw materials. X-ray powder diffractometer, scanning electronic microscope, mercury intrusion porosimetry and thermal analyser were employed to characterize the powders. The results show that Mg(OH)2 decomposes to MgO by one step with a total mass loss of 30.8%. When the calcination tempotature increases from 400 to 600℃, Mg(OH)2 decomposes to MgO from spherical-like to plate-like particles. Mg(OH)2 decomposes completely at 550℃ for 10min, and iodine absorption value reaches a maximum value of 83.6mg/g. |
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| Keywords: | magnesium hydroxide magnesium oxide thermal decomposition iodine absorption value |
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