| 微孔分散法制备超细CaCO3 |
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| 引用本文： | 吴国华,朴香兰,王玉军,朱慎林.微孔分散法制备超细CaCO3[J].化工学报,2006,57(6):1482-1485. |
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| 作者姓名： | 吴国华 朴香兰 王玉军 朱慎林 |
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| 作者单位： | 化学工程联合国家重点实验室(清华大学),北京,100084;化学工程联合国家重点实验室(清华大学),北京,100084;化学工程联合国家重点实验室(清华大学),北京,100084;化学工程联合国家重点实验室(清华大学),北京,100084 |
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| 摘 要： | 引言 超细CaCO3的粒径范围通常为0.02～0.1μm1],具有纳米尺度效应和特殊的性能,作为一种优质填料和白色颜料,广泛应用在橡胶、塑料、造纸、涂料、油墨、医药等众多行业.超细Ca-CO3的商业产品主要由湿化学沉淀法合成的,即用CO2气体和Ca(OH)2/H2O体系进行化学反应来制备.
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| 关 键 词： | 超细CaCO3 微孔分散 微反应器 纳米颗粒 |
| 文章编号： | 0438-1157（2006）06-1482-04 |
| 收稿时间： | 07 26 2005 12:00AM |
| 修稿时间： | 2005-07-262005-11-15 |
Preparation of ultrafine calcium carbonate with micropore dispersion |
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| WU Guohua,PIAO Xianglan,WANG Yujun,ZHU Shenlin.Preparation of ultrafine calcium carbonate with micropore dispersion[J].Journal of Chemical Industry and Engineering(China),2006,57(6):1482-1485. |
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| Authors: | WU Guohua PIAO Xianglan WANG Yujun ZHU Shenlin |
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| Affiliation: | State Key Laboratory of Chemical Engineering , Department of Chemical Engineering Tsinghua University, Beijing 100084, China |
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| Abstract: | Ultrafine particles of CaCO3 were synthesized with micropore dispersion in gas-liquid (slurry) systems.Experiments was conducted on carbonation of Ca(OH)2/H2O system.Micropore plate was used for the dispersion of mixed gas containing CO2.Therefore,the processes of momentum transfer, mass transfer and reaction were enhanced.The results showed that ultrafine particles with diameter about 40nm and specific surface area more than 30m2•g-1 were prepared successfully.The crystal structure of particles was characterized with BET, FTIR and TEM. |
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| Keywords: | ultrafine CaCO3 micropore dispersion microreaetion nanoparticles |
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