| 一种针状纳米碳酸钙的制备方法 |
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| 引用本文： | 徐惠,常成功,刘小育,范宗良.一种针状纳米碳酸钙的制备方法[J].无机盐工业,2010,42(1). |
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| 作者姓名： | 徐惠 常成功 刘小育 范宗良 |
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| 作者单位： | 兰州理工大学石油化工学院,甘肃兰州,730050 |
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| 基金项目： | 甘肃省自然基金资助项目(2007JS05348) |
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| 摘 要： | 用石灰乳液碳酸化法制备出针状纳米碳酸钙微粒,讨论了碳化温度和结晶导向剂用量等因素对纳米碳酸钙粒径和形貌的影响。结果表明:结晶导向剂用量为1%~3%(质量分数),温度为14℃,氢氧化钙浆液浓度为8%~12%(氢氧化钙占浆液的质量分数),CO2气体浓度为40%~60%(体积分数),搅拌速度为200~300 r/m in时能制备出长径比大、粒径分布均匀、分散性好的产品;并采用TEM,XRD对其结构进行了表征。
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| 关 键 词： | 纳米碳酸钙 结晶导向剂 碳化温度 |
Preparation method of needle-like nano-sized calcium carbonate |
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| Xu Hui,Chang Chenggong,Liu Xiaoyu,Fan Zongliang.Preparation method of needle-like nano-sized calcium carbonate[J].Inorganic Chemicals Industry,2010,42(1). |
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| Authors: | Xu Hui Chang Chenggong Liu Xiaoyu Fan Zongliang |
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| Affiliation: | Xu Hui,Chang Chenggong,Liu Xiaoyu,Fan Zongliang(School of Petrochemical Technology,Lanzhou University of Technology,Lanzhou 730050,China) |
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| Abstract: | Needle-like nano-sized calcium carbonate particles were prepared by carbonation method with lime milk as raw material.Influences of carbonization temperature and amount of crystal directing-agent etc.on the particle size and shape of prepared nano-CaCO3 were discussed.Results showed that the product with large slenderness ratio,uniform particle size,and good dispersibility could be prepared under the conditions as follows:amount of crystal directing-agent was 1%~3%(mass fraction),temperature was controlled ... |
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| Keywords: | nano-sized calcium carbonate crystal-directing agent carbonization temperature |
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