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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
2017-07-01
Source PublicationAICHE JOURNAL
ISSN0001-1541
Volume63Issue:7Pages:2926-2934
Abstract

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

KeywordDiffusion-limited Dissolution Kinetics Invariant-field Approximation Reverse-growth Approximation Invariant-size Approximation
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1002/aic.15676
Indexed BySCI
Language英语
WOS KeywordIn-situ Observation ; Metallurgical Slags ; Kinetics
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationEU FP7 project REEcover(603564) ; CAS Pioneer Hundred Talents Program
WOS IDWOS:000402909600035
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/22624
Collection湿法冶金清洁生产技术国家工程实验室
Affiliation1.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
Recommended Citation
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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