CAS OpenIR
Study on the grain size control of metatitanic acid in a mixture acid system based on Arrhenius and Boltzmann fitting
Tian, Ming1,2; Liu, Yahui1,2; Zhao, Wei1,2; Wang, Weijing1,2; Wang, Lina1,2; Chen, Desheng1,2; Zhao, Hongxin1,2; Meng, Fancheng1,2; Zhen, Yulan1,2; Qi, Tao1,2
2020-01-06
Source PublicationRSC ADVANCES
Volume10Issue:2Pages:1055-1065
AbstractHerein, to control the particle size of metatitanic acid produced via titanium thermal hydrolysis in sulfuric-chloric mixture acid (SCMA) solutions, the relationship between its grain size and hydrolysis parameters is discussed, and the corresponding mathematical model was established using the experimental data. Firstly, Ti(OH)(SO4)(Cl)(H2O)(3) was selected as the most likely initial structure in the SCMA solution by comparing the experimental and corresponding simulated Raman spectra by density functional theory (DFT). Secondly, according to the predicted initial structure of TiO2+ and the experimental data for the hydrolysis process, with an increase in the concentration of TiO2+ and reaction temperature, the hydrolysis rate and grain size increased, while the agglomerate particle size decreased. Finally, a mathematic model was established and fitted by the Arrhenius equation and the Boltzmann distribution to describe the relationship between the grain size and hydrolysis parameters, as follows: 1:38 1023Tf2 lnonH thorn 2hTHORN thorn lnonCl thorn hTHORNthorn lnonSO thorn hTHORN thorn 2 lnonwTHORN lno1 hTHORN 5 lnoP n thorn 1 thorn 3hTHORN thorn or 0:2THORN3 r3 ln" or 0:2THORN3 r3 or 0:2THORN3# g 1/4 o0:2THORN3 r3 or 0:2THORN3 [-4:949 x 10(-14) (1/Sigma n+1)(3)].
DOI10.1039/c9ra08503c
Language英语
WOS KeywordTITANYL SULFATE-SOLUTION ; RUTILE TIO2 ; HYDROLYSIS ; RAMAN ; ANATASE ; GROWTH ; MORPHOLOGY ; SPECIATION ; PARTICLES ; MECHANISM
Funding ProjectNational Key R&D Program of China[2018YFC1900500] ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences[QYZDJ-SSW-JSC021] ; National Natural Science Foundation of China[51774260] ; National Natural Science Foundation of China[51804289] ; National Natural Science Foundation of China[51904286] ; National Natural Science Foundation of China[21908231] ; CAS Interdisciplinary Innovation Team
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
Funding OrganizationNational Key R&D Program of China ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences ; National Natural Science Foundation of China ; CAS Interdisciplinary Innovation Team
WOS IDWOS:000507289600048
PublisherROYAL SOC CHEMISTRY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/38807
Collection中国科学院过程工程研究所
Corresponding AuthorLiu, Yahui; Qi, Tao
Affiliation1.Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Tian, Ming,Liu, Yahui,Zhao, Wei,et al. Study on the grain size control of metatitanic acid in a mixture acid system based on Arrhenius and Boltzmann fitting[J]. RSC ADVANCES,2020,10(2):1055-1065.
APA Tian, Ming.,Liu, Yahui.,Zhao, Wei.,Wang, Weijing.,Wang, Lina.,...&Qi, Tao.(2020).Study on the grain size control of metatitanic acid in a mixture acid system based on Arrhenius and Boltzmann fitting.RSC ADVANCES,10(2),1055-1065.
MLA Tian, Ming,et al."Study on the grain size control of metatitanic acid in a mixture acid system based on Arrhenius and Boltzmann fitting".RSC ADVANCES 10.2(2020):1055-1065.
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