Adjustment on gibbsite and boehmite co-precipitation from upersaturated sodium aluminate solutions
文献类型：期刊论文
| 作者 | WANG Zhi; YANG Liu; ZHANG Juan; GUO Zhancheng; ZHANG Yi |
| 刊名 | TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
 |
| 出版日期 | 2010 |
| 卷号 | 20期号:3页码:521 |
| 关键词 | sodium aluminate solutions co-precipitation boehmite gibbsite |
| ISSN号 | 1003-6326 |
| 英文摘要 | Gibbsite is the usual precipitation product from alumina refineries with either Bayer or sintering process. However, the advantage of boehmite precipitation over gibbsite precipitation is the significant energy saving in the subsequent calcination step. The current investigation takes a pragmatic approach to measure precipitation ratios, determine product phase, morphology and particle size distribution, and assess the impacts and adjustment capability of main parameters such as seed, temperature, ethanol medium, and supersaturation on the precipitation kinetics and alumina hydrate type during co-precipitation process. The results clarify that gibbsite and boehmite both can be precipitated from supersaturated sodium aluminate solutions simultaneously, and the competitive formation between Al(OH)3 and γ-AlOOH determines the main precipitate phases from pregnant liquor. Boehmite seeds, high temperature and ethanol addition can promote the boehmite precipitation and improve the mass fraction of boehmite in products. Co-precipitation changes the multimodal distribution of seeds to a normal and well distribution of products, and the particle size is more than several times that of seeds. |
| 语种 | 英语 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/57724]  |
| 作者单位 | 中国科学院过程工程研究所 |
| 推荐引用方式 GB/T 7714 | WANG Zhi,YANG Liu,ZHANG Juan,et al. Adjustment on gibbsite and boehmite co-precipitation from upersaturated sodium aluminate solutions[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2010,20(3):521. |
| APA | WANG Zhi,YANG Liu,ZHANG Juan,GUO Zhancheng,&ZHANG Yi.(2010).Adjustment on gibbsite and boehmite co-precipitation from upersaturated sodium aluminate solutions.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,20(3),521. |
| MLA | WANG Zhi,et al."Adjustment on gibbsite and boehmite co-precipitation from upersaturated sodium aluminate solutions".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 20.3(2010):521. |
入库方式： OAI收割
来源：过程工程研究所
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