| 表面活性剂在硅灰石制二氧化硅中的应用研究 |
| |
| 引用本文： | 王廷吉,陈庆春,周萍华,刘玉兰.表面活性剂在硅灰石制二氧化硅中的应用研究[J].精细化工,2000,17(8):438-440. |
| |
| 作者姓名： | 王廷吉 陈庆春 周萍华 刘玉兰 |
| |
| 作者单位： | 华东地质学院,材料系,江西,临川,344000 |
| |
| 基金项目： | 江西省自然科学基金!资助项目 ( 9750 1 5) |
| |
| 摘 要： | 用酸浸硅灰石制二氧化硅 ,讨论了反应过程及 5种表面活性剂对产物的比表面积、DBP吸着率、表观密度等性质及产率的影响 ,其中聚乙二醇 (PEG)可大幅度提高产物的比表面积。当PEG相对分子质量≥ 60 0 0、添加量接近硅灰石质量的 1 0 %时 ,产物比表面积 >50 0m2 ·g- 1,DBP吸着率≤ 2 0 0mL 1 0 0g。
|
| 关 键 词： | 硅灰石 表面活性剂 高比表面积二氧化硅 |
Application of Surfactant to the Production of Silica from Wollastonite |
| |
| WANG Ting-ji,CHEN Qing-chun,ZHOU Ping-hua,LIU Yu-lan.Application of Surfactant to the Production of Silica from Wollastonite[J].Fine Chemicals,2000,17(8):438-440. |
| |
| Authors: | WANG Ting-ji CHEN Qing-chun ZHOU Ping-hua LIU Yu-lan |
| |
| Abstract: | Silica was produced by the reaction between wollastonite and acid.The effects of reaction process and five different surfactants on the specific surface area,DBP adsorption rate,apparent density and the yield of the product were discussed.It showed that the specific surface area could be raised by adding PEG to the reaction system.When the molecular weight of PEG≥6000 and amount of addition was about 10%,the specific surface area of the product exceeded 500 m\+2·g\+\{-1\} and DBP adsorption rate was less than 200 mL/100 g. |
| |
| Keywords: | wollastonite surfactant high specific surface area silica |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
