Removal of aluminosilicates from diasporic-bauxite by selective flocculation using sodium polyacrylate
文献类型：期刊论文
| 作者 | Huang Chuanbing1; Wang Yuhua2 |
| 刊名 | SEPARATION AND PURIFICATION TECHNOLOGY
 |
| 出版日期 | 2008-03-01 |
| 卷号 | 59期号:3页码:299-303 |
| 关键词 | diasporic-bauxite selective flocculation flocculant mass ratio of Al(2)O(3)/SiO(2) |
| ISSN号 | 1383-5866 |
| 其他题名 | Sep. Purif. Technol. |
| 中文摘要 | The flocculation of fine diaspore, kaolinite, illite and pyrophyllite and their artificial mixed minerals and bauxite ore were systematically investigated by the sedimentation tests. The mechanism analyses were performed in combination with examinations through X-ray diffraction (XRD), digital metallographic microscope and infrared spectra. Experimental results showed that the concentrate with A/S (mass ratio of Al(2)O(3)/SiO(2)) 8.9 and the recovery of Al(2)O(3) 86.98% were obtained from bauxite ore (A/S 5.68) at pH 9.5-10 by using sodium carbonate 5 kg/t and sodium polyacrylate 7 g/t. Sodium carbonate can act as both pH modifiers and a favorable dispersant for aluminositicates. High performance of sodium polyacrylate on flocculation for diaspore was due to that carboxyl of sodium polyacrylate interacted with active Al sets of diaspore by chemical absorption or formed hydrogen bond via hydroxyl group of macromolecule with surface Al-OH to enhance the sedimentation rate of diaspore. (C) 2007 Elsevier B.V. All rights reserved. |
| 英文摘要 | The flocculation of fine diaspore, kaolinite, illite and pyrophyllite and their artificial mixed minerals and bauxite ore were systematically investigated by the sedimentation tests. The mechanism analyses were performed in combination with examinations through X-ray diffraction (XRD), digital metallographic microscope and infrared spectra. Experimental results showed that the concentrate with A/S (mass ratio of Al(2)O(3)/SiO(2)) 8.9 and the recovery of Al(2)O(3) 86.98% were obtained from bauxite ore (A/S 5.68) at pH 9.5-10 by using sodium carbonate 5 kg/t and sodium polyacrylate 7 g/t. Sodium carbonate can act as both pH modifiers and a favorable dispersant for aluminositicates. High performance of sodium polyacrylate on flocculation for diaspore was due to that carboxyl of sodium polyacrylate interacted with active Al sets of diaspore by chemical absorption or formed hydrogen bond via hydroxyl group of macromolecule with surface Al-OH to enhance the sedimentation rate of diaspore. (C) 2007 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Chemical |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | KAOLINITE ; ORE |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000254160200010 |
| 公开日期 | 2013-10-08 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/2768]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Beijing 10086, Peoples R China 2.Cent S Univ, Sch Resources Proc & Bioengn, Changsha 410083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang Chuanbing,Wang Yuhua. Removal of aluminosilicates from diasporic-bauxite by selective flocculation using sodium polyacrylate[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2008,59(3):299-303. |
| APA | Huang Chuanbing,&Wang Yuhua.(2008).Removal of aluminosilicates from diasporic-bauxite by selective flocculation using sodium polyacrylate.SEPARATION AND PURIFICATION TECHNOLOGY,59(3),299-303. |
| MLA | Huang Chuanbing,et al."Removal of aluminosilicates from diasporic-bauxite by selective flocculation using sodium polyacrylate".SEPARATION AND PURIFICATION TECHNOLOGY 59.3(2008):299-303. |
入库方式： OAI收割
来源：过程工程研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。