Diffusion-limited dissolution of spherical particles: A critical evaluation and applications of approximate solutions | |
Guo, Xiaoling1; Sietsma, Jilt1; Yang, Yongxiang1; Sun, Zhi1,2; Guo, Muxing3 | |
刊名 | AICHE JOURNAL |
2017-07-01 | |
卷号 | 63期号:7页码:2926-2934 |
关键词 | Diffusion-limited Dissolution Kinetics Invariant-field Approximation Reverse-growth Approximation Invariant-size Approximation |
ISSN号 | 0001-1541 |
DOI | 10.1002/aic.15676 |
文献子类 | Article |
英文摘要 | The analytical and numerical description of the effective dissolution kinetics of spherical particles into a solvent is often difficult in chemical and metallurgical engineering. The crucial first step is to identify the dissolution mechanisms, and subsequently, relevant kinetics parameters can be calculated. In this article, three frequently used approximations, i.e., the invariant-field (IF) (Laplace), reverse-growth (RG), and invariant-size (IS) (stationary-interface) approximations, are systematically discussed and compared with numerical simulation results. The relative errors of the dissolution curves and total dissolution time of the three approximations to the numerical simulations are calculated. The results reveal the appropriate application ranges of the approximations for given precision levels. With further experimental validation, this research provides a methodology to properly assess dissolution kinetics and adequately estimate effective diffusion coefficients and activation energy under the experimental uncertainties. (c) 2017 American Institute of Chemical Engineers AIChE J, 63: 2926-2934, 2017 |
WOS关键词 | In-situ Observation ; Metallurgical Slags ; Kinetics |
WOS研究方向 | Engineering |
语种 | 英语 |
WOS记录号 | WOS:000402909600035 |
资助机构 | EU FP7 project REEcover(603564) ; CAS Pioneer Hundred Talents Program |
内容类型 | 期刊论文 |
源URL | [http://ir.ipe.ac.cn/handle/122111/22624] |
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 | 1.Delft Univ Technol, Dept Mat Sci & Engn, Mekelweg 2, NL-2628 CD Delft, Netherlands 2.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China 3.Katholieke Univ Leuven, Dept Mat Engn, Kasteelpk Arenberg 44 Box 2450, B-3001 Leuven, Belgium |
推荐引用方式 GB/T 7714 | Guo, Xiaoling,Sietsma, Jilt,Yang, Yongxiang,et al. Diffusion-limited dissolution of spherical particles: A critical evaluation and applications of approximate solutions[J]. AICHE JOURNAL,2017,63(7):2926-2934. |
APA | Guo, Xiaoling,Sietsma, Jilt,Yang, Yongxiang,Sun, Zhi,&Guo, Muxing.(2017).Diffusion-limited dissolution of spherical particles: A critical evaluation and applications of approximate solutions.AICHE JOURNAL,63(7),2926-2934. |
MLA | Guo, Xiaoling,et al."Diffusion-limited dissolution of spherical particles: A critical evaluation and applications of approximate solutions".AICHE JOURNAL 63.7(2017):2926-2934. |
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