| 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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| 引用本文： | 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. |
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| 作者姓名： | 储刚 蒋晓光 林忠 李卫刚 |
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| 作者单位： | 辽宁石油化工大学化学与材料科学学院, 辽宁 抚顺 113001;鲅鱼圈出入境检验检疫局, 辽宁 营口 115007;鲅鱼圈出入境检验检疫局, 辽宁 营口 115007;鲅鱼圈出入境检验检疫局, 辽宁 营口 115007 |
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| 摘 要： | 研究了离子色谱法同时测定砂岩型铀矿浸出液中阳离子的方法。采用Ionpac CS12A阳离子分离柱,以20 mmol/L甲基磺酸(MSA)为淋洗液,直接电导检测-离子色谱法分离测定铀矿石浸出液中常见的阳离子(Li+、Na+、K+、NH4+、Ca2+、Mg2+),方法检出限为0.012 7~0.194 mg/L,相对标准偏差(RSD,n=5)为1.04%~4.50%,加标回收率为91.5%~106.0%。该方法用于铀矿石浸出液中的阳离子同时测定,具有很好的实用性。
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| 关 键 词： | 离子色谱法 铀矿浸出液 阳离子 |
| 收稿时间： | 2010/2/24 0:00:00 |
| 修稿时间： | 2010/6/24 0:00:00 |
Analysis of Phase Composition of Magnesite Clinker from Calcinated Brucite by X-ray Diffraction |
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| CHU Gang,JIANG Xiao-guang,LIN Zhong and 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. |
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| Authors: | CHU Gang JIANG Xiao-guang LIN Zhong and LI Wei-gang |
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| Institution: | School of Chemistry and Material Science, Liaoning Shihua University, Fushun 113001, China;Ba Yuquan Entry-Exit Inspection and Quarantine Bureau, Yingkou 115007, China;Ba Yuquan Entry-Exit Inspection and Quarantine Bureau, Yingkou 115007, China;Ba Yuquan Entry-Exit Inspection and Quarantine Bureau, Yingkou 115007, China |
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| Abstract: | 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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| Keywords: | calcinated bmcite magnesite clinker X-ray diffraction phase analysis |
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