Crystallization behaviors of bayerite from sodium chromate alkali solutions
文献类型：期刊论文
| 作者 | Wei, Guang-ye1,2; Qu, Jing-kui1; Zheng, Yu-dong2; Qi, Tao1; Guo, Qiang1; Han, Bing-bing1; Zhao, Hong-xin1 |
| 刊名 | TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
 |
| 出版日期 | 2014-10-01 |
| 卷号 | 24期号:10页码:3356-3365 |
| 关键词 | chromate alkali solutions bayerite carbonization crystallization precipitation efficiency |
| ISSN号 | 1003-6326 |
| 其他题名 | Trans. Nonferrous Met. Soc. China |
| 中文摘要 | In order to clean production of chromium compounds, it is a critical process to remove aluminates and utilize aluminum compounds from artificial chromate alkali solutions. The effects of Na2CrO4 on the neutralization curve, Al(OH)(3) precipitation efficiency and induction period of bayerite were investigated. The results indicate that the neutralization curve of the artificial chromate alkali solutions shows three distinct regions and its induction period is longer than that of pure sodium aluminate solutions at the same aluminum concentration. And the decreased temperature and volume fraction of CO2 enhance the particle size of bayerite beta-Al(OH)(3). Bayerite composed of agglomerates of rods and cone frustums was obtained from alkali metal chromate solutions with 28.5% CO2 (volume fraction) at temperatures ranging from 50 degrees C to 70 degrees C. Coarse bayerite with particle size (d(50)) from 24.2 mu m to 29.3 mu m extremely has few impurities, which is suitable for comprehensive utilization. |
| 英文摘要 | In order to clean production of chromium compounds, it is a critical process to remove aluminates and utilize aluminum compounds from artificial chromate alkali solutions. The effects of Na2CrO4 on the neutralization curve, Al(OH)(3) precipitation efficiency and induction period of bayerite were investigated. The results indicate that the neutralization curve of the artificial chromate alkali solutions shows three distinct regions and its induction period is longer than that of pure sodium aluminate solutions at the same aluminum concentration. And the decreased temperature and volume fraction of CO2 enhance the particle size of bayerite beta-Al(OH)(3). Bayerite composed of agglomerates of rods and cone frustums was obtained from alkali metal chromate solutions with 28.5% CO2 (volume fraction) at temperatures ranging from 50 degrees C to 70 degrees C. Coarse bayerite with particle size (d(50)) from 24.2 mu m to 29.3 mu m extremely has few impurities, which is suitable for comprehensive utilization. |
| 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] | ALUMINATE SOLUTIONS ; NEUTRALIZATION ; GIBBSITE ; TRIHYDROXIDE ; NUCLEATION ; HYDROXIDE ; LIQUORS ; GROWTH ; OXIDE ; IONS |
| 收录类别 | SCI |
| 原文出处 | http://www.sciencedirect.com/science/article/pii/S1003632614634774 |
| 语种 | 英语 |
| WOS记录号 | WOS:000345542700037 |
| 公开日期 | 2015-04-01 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/11855]  |
| 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, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China 2.Univ Sci & Technol, Sch Mat Sci & Engn, Beijing 10083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wei, Guang-ye,Qu, Jing-kui,Zheng, Yu-dong,et al. Crystallization behaviors of bayerite from sodium chromate alkali solutions[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2014,24(10):3356-3365. |
| APA | Wei, Guang-ye.,Qu, Jing-kui.,Zheng, Yu-dong.,Qi, Tao.,Guo, Qiang.,...&Zhao, Hong-xin.(2014).Crystallization behaviors of bayerite from sodium chromate alkali solutions.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,24(10),3356-3365. |
| MLA | Wei, Guang-ye,et al."Crystallization behaviors of bayerite from sodium chromate alkali solutions".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 24.10(2014):3356-3365. |
入库方式： OAI收割
来源：过程工程研究所
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