| 多级喷雾碳化法制备纳米碳酸钙工艺研究 |
| |
| 引用本文： | 徐旺生,何秉忠,金士威,宣爱国. 多级喷雾碳化法制备纳米碳酸钙工艺研究[J]. 化工矿物与加工, 2001, 30(6): 5-7,24 |
| |
| 作者姓名： | 徐旺生 何秉忠 金士威 宣爱国 |
| |
| 作者单位： | 武汉化工学院化工系, |
| |
| 摘 要： | 研究了多级喷雾碳化制备纳米碳酸钙的工艺，并详细讨论了雾化、碳化条件及添加剂量等对纳米碳酸钙粒径的影响，碳化后的沉淀物真空干燥，其原始粒径约为30nm。经表面改性处理，可得到粒径在30－40nm范围的活性纳米碳酸钙粉体材料。
|
| 关 键 词： | 纳米碳酸钙 喷雾碳化法 粒径 传质系数 添加剂 表面改性处理 |
| 文章编号： | 1008-7524(2001)06-0005-03 |
Preparation of nanometer calcium carbonate by multistage spray carbonation |
| |
| XU Wang sheng,HE Bing zhong,JIN Shi wei,XUAN Ai guo. Preparation of nanometer calcium carbonate by multistage spray carbonation[J]. Industrial Minerals and Processing, 2001, 30(6): 5-7,24 |
| |
| Authors: | XU Wang sheng HE Bing zhong JIN Shi wei XUAN Ai guo |
| |
| Abstract: | In this paper,the preparation process of nanometer calcium carbonate (CaCO 3)by multistage spray carbonation was studied.The effects of the conditions of spray carbonation and additive dosage on the average particle size of nanometer CaCO 3 were discussed systematically.The primary particle size of carbonated sediment was about 30nm by vacuum desiccation.Then the active nanometer CaCO 3 particles ranged from 30nm to 40nm could be obtained with surface modification. |
| |
| Keywords: | nanometer calcium carbonate multistage spray carbonation particle size mass transfer coefficient |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
