| 利用煤矸石制备超细Al(OH)3 |
| |
| 引用本文： | 吕淑珍,方荣利. 利用煤矸石制备超细Al(OH)3[J]. 矿产综合利用, 2004, 0(3): 34-37,26 |
| |
| 作者姓名： | 吕淑珍 方荣利 |
| |
| 作者单位： | 西南科技大学,四川,绵阳,621002;西南科技大学,四川,绵阳,621002 |
| |
| 基金项目： | 四川省科学基金资助项目 |
| |
| 摘 要： | 采用矿物组成改性技术活化煤矸石中Al2O3,消除阻止C2S晶相转变的干扰因素,实现了煤矸石活化烧结料100%的自粉化,自粉化料平均粒径小于1μm;用8%碳酸钠溶液可从自粉化料中以NaAlO2形式提取铝组分,用高效分散—碳化法制备超细Al(OH)3,其平均粒度小于200nm,为煤矸石的高价值利用开辟了一条新的途径。
|
| 关 键 词： | 煤矸石 晶相转变 自粉化料 氢氧化铝 |
| 文章编号： | 1000-6532(2004)03-0034-05 |
The Preparation of Ultrafine Aluminium Hydroxide by Using Coal Gangue |
| |
| LU Shu-zhen,FANG Rong-li. The Preparation of Ultrafine Aluminium Hydroxide by Using Coal Gangue[J]. Multipurpose Utilization of Mineral Resources, 2004, 0(3): 34-37,26 |
| |
| Authors: | LU Shu-zhen FANG Rong-li |
| |
| Abstract: | Modification of mineral composition is adopted to activate alumina in coal gangue,eliminate interfering factors which prevent the crystal phase from transforming and realize the complete self-pulverization of coal gangue sinter,therefore the average diameter of the self-pulverized powders is less than l μm. Aluminium is extracted from the activated coal gangue as NaAlO_2 form by using 8% sodium carbonate solution and ultrafine aluminium hydroxide powders were obtained by addition of effective dispersants and using carbonization method,average diameter of the powders is less than 200nm. |
| |
| Keywords: | Coal gangue Crystal phase transformation Self-pulverized feed Aluminium hydroxide |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
