Kinetic analysis for crystal growth rate of NH4Cl in the NaCl-MgCl2-H2O system with a thermodynamic approach
文献类型：期刊论文
| 作者 | Wang, Daoguang; Li, Zhibao |
| 刊名 | AICHE JOURNAL
 |
| 出版日期 | 2012-03-01 |
| 卷号 | 58期号:3页码:914-924 |
| 关键词 | crystallization kinetic crystal growth rate thermodynamic chemical potential |
| ISSN号 | 0001-1541 |
| 通讯作者 | Li, ZB |
| 英文摘要 | A growth kinetic model has been developed from a rigorous thermodynamic perspective to describe the crystal growth rates of NH4Cl on the basis of the difference of chemical potentials of NH4Cl at solidliquid interface in aqueous NH4Cl, NH4Cl-NaCl, and NH4Cl-MgCl2 solutions. The solidliquid equilibrium and activity coefficient of NH4Cl are calculated by the newly developed accurate Pitzer model with aid of Aspen Plus(TM) platform. The predictions of the resulting model are in good agreement with the experimental data published in literature and determined in this work at 283.15333.15 K within the supersaturation up to 0.1. The kinetic model was subsequently used to analyze the effect of several operation variables, including temperature (283.15333.15 K), supersaturation (up to 0.1), and NaCl or MgCl2 concentration (0 similar to 2.5 mol kg-1), on the crystal growth rate of NH4Cl. The crystal growth rate of NH4Cl, with activation energy of 39 kJ mol-1, is strongly temperature-dependent and increases with increasing temperature in the three systems investigated. The advantage of MgCl2 over NaCl on the recovery of NH4Cl is theoretically and experimentally illustrated from the thermodynamic and kinetic perspectives with the aid of the established model. (c) 2011 American Institute of Chemical Engineers AIChE J, 2012 |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Chemical |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | CRYSTALLIZATION ; MIXTURES |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000301225500021 |
| 公开日期 | 2013-10-24 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/3918]  |
| 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, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Daoguang,Li, Zhibao. Kinetic analysis for crystal growth rate of NH4Cl in the NaCl-MgCl2-H2O system with a thermodynamic approach[J]. AICHE JOURNAL,2012,58(3):914-924. |
| APA | Wang, Daoguang,&Li, Zhibao.(2012).Kinetic analysis for crystal growth rate of NH4Cl in the NaCl-MgCl2-H2O system with a thermodynamic approach.AICHE JOURNAL,58(3),914-924. |
| MLA | Wang, Daoguang,et al."Kinetic analysis for crystal growth rate of NH4Cl in the NaCl-MgCl2-H2O system with a thermodynamic approach".AICHE JOURNAL 58.3(2012):914-924. |
入库方式： OAI收割
来源：过程工程研究所
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