摘要
在复合结晶导向剂存在条件下,在碳化温度30～75℃、氢氧化钙初始质量分数8%～12%的高温高浓的工艺条件下,制备出了直径为20 nm、长径比为10～15、粒径分布均匀的针状纳米碳酸钙.同时研究了结晶导向剂加入量、碳化温度、氢氧化钙初始浓度等对针状纳米碳酸钙的粒径和形貌的影响,并进行了工业化试验,取得良好结果.
The needle - like nano - CaCO3 with diameter of 20 nm aspect ratio of 10 - 15, and uniform size distribution is prepared at carbonation temperature 30 - 75℃ and the initial concentration of Ca（OH） 2 8% -12% （mass） in the presence of crystal directing agent. The influences of the amount of directing agent added, carbonation temperature and initial concentration of Ca（OH）2 on the size and shape of nano - CaCO3 are studied. The industrial test is carried out and the good result is obtained.
出处
《无机盐工业》
CAS
北大核心
2005年第10期24-27,共4页
Inorganic Chemicals Industry
关键词
纳米碳酸钙
针状
结晶导向剂
nano - CaCO3
needle - like
crystal
directing - agent
