| 储刚,蒋晓光,林忠,李卫刚.X射线衍射法分析水镁石煅烧制备的镁砂物相组成[J].岩矿测试,2010,29(6):711-714 |
| CHU Gang,JIANG Xiao-guang,LIN Zhong,LI Wei-gang.Analysis of Phase Composition of Magnesite Clinker from Calcinated Brucite by X-ray Diffraction[J].Rock and Mineral Analysis,2010,29(6):711-714.DOI: |
| X射线衍射法分析水镁石煅烧制备的镁砂物相组成 |
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| Analysis of Phase Composition of Magnesite Clinker from Calcinated Brucite by X-ray Diffraction |
| 投稿时间：2010-02-24 修订日期：2010-06-24 |
| DOI： |
| 中文关键词: 煅烧水镁石 镁砂 X射线衍射 物相分析 |
| 英文关键词: calcinated bmcite magnesite clinker X-ray diffraction phase analysis |
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| 摘要点击次数: 1622 |
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| 中文摘要: |
| 采用X射线衍射技术(XRD)对水镁石原矿和不同工艺条件生产的出口镁砂产品进行了物相组成分析,水镁石原矿粉中主相Mg(OH)2含量达到85.9%,杂质主要是Mg3Si2(OH)4O5、CaCO3和CaMg(CO3)2;轻烧镁砂中的Mg(OH)2大部分已经分解为MgO,但还有12.3% 的Mg(OH)2未分解,并在低温煅烧的情况下生成了微量的新相Mg2SiO4;重烧镁砂中的Mg(OH)2已经完全分解为MgO,杂质主要存在形式是Mg2SiO4和CaCO3,占总量的18.5%。实验结果将成为提高水镁石矿煅烧生产的镁砂品质而改进提纯工艺的参考依据。 |
| 英文摘要: |
| The X-ray diffraction (XRD) has been used to analyze phase composition of magnesite clinker from calcinated brucite with different process conditions. The major phase of raw brucite powder is Mg(OH)2 with content up to 85.9% and major impurities are Mg3Si2(OH)4O5, CaCO3 and CaMg(CO3)2. Most of Mg(OH)2 are decomposed into MgO during the calcination at low temperature and about 12.3% of un-decomposed Mg(OH)2 formed new phase of Mg2SiO4. Mg(OH)2 in brucite is completely decomposed into MgO under the high-temperature calcination and the impurities are Mg2SiO4 and CaCO3 with total content of 18.5%. The results provide the guidance for reforming purification process and improving the quality of magnesite clinker. |
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