尉犁蛭石微波膨胀试验研究
Study on Preparation of Expanded Vermiculite by Microwave Irradiation
查看参考文献9篇
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文摘
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对新疆尉犁蛭石样品采用微波加热法和900℃电加热法制备膨胀蛭石,并对制备的膨胀蛭石样品进行SEM、XRD分析.结果表明:微波法制备的膨胀蛭石层与层之间分离彻底,层间孔隙多,平均膨胀度大于电加热膨胀蛭石的;蛭石层间距变化小;蛭石层间铁离子没有发生氧化反应,膨胀后颜色为银灰色,蛭石不发脆.对蛭石样品用不同功率相同时间、相同功率不同时间微波加热后发现:微波加热时间为50s、功率为400W时蛭石的膨胀度最大. |
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其他语种文摘
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Using the vermiculite ore from Yuli of Xinjiang as raw material, the expanded vermiculite was prepared respectively by microwave irradiation and electric heating at 900℃. The microstructure of expanded vermiculite was characterized with XRD and SEM. Experimental results indicated that the expanded vermiculite prepared by microwave irradiation had more gap between completely separate layers, greater volume yield and less changed layer distance compared with electric heating method and was not friable with silvery color in the reason of no oxidated ferrous ion. The volume yield of expanded vermiculite interrelated with the microwave irradiation time and power, which increased with microwave irradiation time when power was certain and increased a little with microwave power when time was certain. Study founded that expanded vermiculite had the maximum volume yield when microwave irradiation time was 50s and power was 400W. |
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来源
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非金属矿
,2007,30(5):4-6 【核心库】
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关键词
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尉犁
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蛭石
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微波加热
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膨胀
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地址
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1.
中国科学院研究生院, 北京, 100039
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中国科学院新疆理化技术研究所, 新疆, 乌鲁木齐, 830011
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中国科学院过程研究所, 北京, 100080
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1000-8098 |
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学科
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化学 |
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基金
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中国科学院西部之光人才培养计划
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文献收藏号
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CSCD:2944842
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