Study of Crystallization Kinetics of Ammonium Carnallite and Ammonium Chloride in the NH4Cl-MgCl2-H2O System
文献类型：期刊论文
| 作者 | Wang, Daoguang; Li, Zhibao |
| 刊名 | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
 |
| 出版日期 | 2012-02-08 |
| 卷号 | 51期号:5页码:2397-2406 |
| 关键词 | METASTABLE ZONE WIDTH MSMPR CRYSTALLIZER |
| ISSN号 | 0888-5885 |
| 通讯作者 | Li, ZB |
| 英文摘要 | Crystallization kinetics of ammonium carnallite (NH4MgCl3 center dot 6H(2)O), a double salt formed in NH4Cl-MgCl2 solution, and ammonium chloride in the NH4Cl-MgCl2-H2O system were experimentally investigated with the mixed-suspension mixed-product removal (MSMPR) crystallizer. The metastable zone widths of ammonium carnallite and ammonium chloride were explored. The effects of temperature and MgCl2 concentration on the nucleation and growth behaviors of ammonium carnallite and ammonium chloride crystals were investigated in both batch and continuous mode. Results showed that the crystal growth rates of the two salts are size-independent. The higher temperature enhances their nucleation and growth rates. The higher MgCl2 concentration results in a greater nucleation rate and lower growth rate of NH4Cl. The nucleation and growth kinetic parameters were determined with the experimental values at various temperatures and MgCl2 concentrations. A kinetic operation equation which agreed well with experimental data was then proposed for design purposes. The operation model capable of analyzing the effect of suspension density and residence time on the crystal size of ammonium chloride, and ammonium carnallite was finally employed to the preliminary design of crystallizers in the ammonium chloride recovery process. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Chemical |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | METASTABLE ZONE WIDTH ; MSMPR CRYSTALLIZER |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000299967700019 |
| 公开日期 | 2013-10-28 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/4304]  |
| 专题 | 过程工程研究所_湿法冶金清洁生产技术国家工程实验室 |
| 作者单位 | Chinese Acad Sci, Key Lab Green Proc & Engn, Natl Engn Lab Hydrometallurg Cleaner Prod Technol, Inst Proc Engn, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Daoguang,Li, Zhibao. Study of Crystallization Kinetics of Ammonium Carnallite and Ammonium Chloride in the NH4Cl-MgCl2-H2O System[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2012,51(5):2397-2406. |
| APA | Wang, Daoguang,&Li, Zhibao.(2012).Study of Crystallization Kinetics of Ammonium Carnallite and Ammonium Chloride in the NH4Cl-MgCl2-H2O System.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,51(5),2397-2406. |
| MLA | Wang, Daoguang,et al."Study of Crystallization Kinetics of Ammonium Carnallite and Ammonium Chloride in the NH4Cl-MgCl2-H2O System".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 51.5(2012):2397-2406. |
入库方式： OAI收割
来源：过程工程研究所
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