Separation of aluminosilicates and diaspore from diasporic-bauxite by selective flocculation
文献类型：期刊论文
| 作者 | Huang Chuan-bing2; Zhang Lin1; Wang Yu-hua1; Lan Ye1 |
| 刊名 | JOURNAL OF CENTRAL SOUTH UNIVERSITY OF TECHNOLOGY
 |
| 出版日期 | 2008-08-01 |
| 卷号 | 15期号:4页码:520-525 |
| 关键词 | diasporic-bauxite sodium carbonate sodium polyacrylate ratio of Al(2)O(3) to SiO(2) selective flocculation flocculant dispersant |
| ISSN号 | 1005-9784 |
| 其他题名 | J. Cent. South Univ. Technol. |
| 中文摘要 | The flocculation tests of four pure minerals (diaspore, kaolinite, illite, pyrophyllite) and bauxite ore were investigated by the sedimentation. The dispersion behavior of the four pure minerals shows a very good consistency with the variation of zeta potential. The concentrate with the mass ratio of Al(2)O(3) to SiO(2) (m(Al(2)O(3))/m(SiO(2))) 8.90 and the recovery of Al(2)O(3) 86.98% is obtained from bauxite ore (m(Al(2)O(3))/m(SiO(2))=5.68) in pH range of 9.5-10.0 by using sodium carbonate (5 kg/t) and sodium polyacrylate (7 g/t) as dispersant and flocculant respectively. Sodium carbonate acts as both pH modifier and favorable dispersant for aluminosilicates. The high performance of sodium polyacrylate on flocculation for diaspore is contributed to the carboxyl of sodium polyacrylate that interacts with active Al sites on diaspore by chemical absorption, and the hydrogen bond effects between hydroxyl group of macromolecule and surface Al-OH on diaspore to accelerate the sedimentation of diaspore. |
| 英文摘要 | The flocculation tests of four pure minerals (diaspore, kaolinite, illite, pyrophyllite) and bauxite ore were investigated by the sedimentation. The dispersion behavior of the four pure minerals shows a very good consistency with the variation of zeta potential. The concentrate with the mass ratio of Al(2)O(3) to SiO(2) (m(Al(2)O(3))/m(SiO(2))) 8.90 and the recovery of Al(2)O(3) 86.98% is obtained from bauxite ore (m(Al(2)O(3))/m(SiO(2))=5.68) in pH range of 9.5-10.0 by using sodium carbonate (5 kg/t) and sodium polyacrylate (7 g/t) as dispersant and flocculant respectively. Sodium carbonate acts as both pH modifier and favorable dispersant for aluminosilicates. The high performance of sodium polyacrylate on flocculation for diaspore is contributed to the carboxyl of sodium polyacrylate that interacts with active Al sites on diaspore by chemical absorption, and the hydrogen bond effects between hydroxyl group of macromolecule and surface Al-OH on diaspore to accelerate the sedimentation of diaspore. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Metallurgy & Metallurgical Engineering |
| 研究领域[WOS] | Metallurgy & Metallurgical Engineering |
| 关键词[WOS] | SHEAR FLOCCULATION ; FLOTATION |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000258563200019 |
| 公开日期 | 2013-10-08 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/2769]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Cent S Univ, Sch Resource Proc & Bioengn, Changsha 410083, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang Chuan-bing,Zhang Lin,Wang Yu-hua,et al. Separation of aluminosilicates and diaspore from diasporic-bauxite by selective flocculation[J]. JOURNAL OF CENTRAL SOUTH UNIVERSITY OF TECHNOLOGY,2008,15(4):520-525. |
| APA | Huang Chuan-bing,Zhang Lin,Wang Yu-hua,&Lan Ye.(2008).Separation of aluminosilicates and diaspore from diasporic-bauxite by selective flocculation.JOURNAL OF CENTRAL SOUTH UNIVERSITY OF TECHNOLOGY,15(4),520-525. |
| MLA | Huang Chuan-bing,et al."Separation of aluminosilicates and diaspore from diasporic-bauxite by selective flocculation".JOURNAL OF CENTRAL SOUTH UNIVERSITY OF TECHNOLOGY 15.4(2008):520-525. |
入库方式： OAI收割
来源：过程工程研究所
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