纳米碳酸钙的晶形控制及机理研究  

Research on Crystal Controland Mechanism of Nano-sizedCalcium Carbonate

作　　者：赵春霞[1] 满瑞林[1] 余嘉耕[1] 陈爱四[1] 王华苗[1] 

机构地区：[1]中南大学化学化工学院,湖南长沙410083

出　　处：《中国粉体技术》2003年第2期34-37,共4页China Powder Science and Technology

摘　　要：采用一种新工艺———自吸式搅拌反应法制备纳米碳酸钙。通过加入不同的晶形控制剂,合成了立方状、链状、片状、球状、棒状、针状6种不同形状的纳米碳酸钙,并以晶体生长动力学为基础,从添加的种类、用量及添加时间等条件出发,研究了其对CaCO3产品的粒度和晶形的影响。The new technology of selfsuction stirred reactor to prepare nanometer CaCO3 is used.Through adding different additives,nanometer CaCO3 with six different shapes (including cube,chain,plate,sphere,stick and needle)are synthesized.Based on the crystal growing kinetics,the influences of additive on CaCO3 are studied.From the sorts,the amount,and the adding time,the influences of additives on particle size and crystal shape are discussed.

关 键 词：纳米碳酸钙 自吸式搅拌反应法 晶形控制 机理 

分 类 号：TQ132.32[化学工程—无机化工]