| 粉体撞击流超细粉碎与表面改性研究 |
| |
| 引用本文： | 刘雪东,李凤生,张智宏.粉体撞击流超细粉碎与表面改性研究[J].化学工程,2002,30(4):41-44. |
| |
| 作者姓名： | 刘雪东 李凤生 张智宏 |
| |
| 作者单位： | 1. 南京理工大学,化工学院,江苏,南京,210049
2. 江苏石油化工学院,化学工程系,江苏,常州,213016 |
| |
| 基金项目： | 江苏省高校自然科学研究计划项目资助 ( 0 1KJB5 30 0 0 4)，中国石油化工股份有限公司科技发展项目资助 (W 0 10 18) |
| |
| 摘 要： | 采用撞击流技术 ,实现粉体的超细粉碎与表面有机化改性工艺于一体。阐述撞击流超细粉碎与表面改性装置的流程特点及工作机理。用硬脂酸作为改性剂 ,对重质碳酸钙进行超细粉碎与表面改性研究 ,研究系统中工质压力、加料速度、改性剂用量等参数对改性粉体性能的影响。通过测定改性粉体的活化指数、红外图谱及其在液体石蜡中的粘度变化 ,证明改性粉体的改性效果良好 ,试验流程及装置具有可行性。
|
| 关 键 词： | 撞击流 超细粉碎 表面改性 重质碳酸钙 |
| 文章编号： | 1005-9954(2002)04-0041-04 |
Ultrafine Grinding and Surface Modification of Powders by Impinging Stream ethod |
| |
| LIU Xue-dong ,LI Feng-sheng ,ZHANG Zhi-hong.Ultrafine Grinding and Surface Modification of Powders by Impinging Stream ethod[J].Chemical Engineering,2002,30(4):41-44. |
| |
| Authors: | LIU Xue-dong LI Feng-sheng ZHANG Zhi-hong |
| |
| Affiliation: | LIU Xue-dong 1,LI Feng-sheng 1,ZHANG Zhi-hong 2 |
| |
| Abstract: | A process of surface modification incorporated with the ultrafine grinding of powders by impinging stream method is presented. The characteristics and working mechanism of the process equipment are introduced. Heavy calcium carbonate powders are treated with stearic acid (as modifier) by the process equipment. The study shows that the modification results are influenced by the injet air pressure, feeding rate and dosage of stearic acid. The excellent modification efficacy of heavy calcium carbonate powders and the feasibility of the process equipment are confirmed by activation indexes of treated powders, IR spectra and changes of viscosity of treated and untreated CaCO 3 in liquid paraffin wax. |
| |
| Keywords: | impinging stream ultrafine grinding surface modification heavy calcium carbonate |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
