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Study on the grain size control of metatitanic acid in a mixture acid system based on Arrhenius and Boltzmann fitting

文献类型：期刊论文

作者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
刊名RSC ADVANCES
出版日期2020-01-06
卷号10期号:2页码:1055-1065
DOI10.1039/c9ra08503c
英文摘要Herein, 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)].
WOS关键词TITANYL SULFATE-SOLUTION ; RUTILE TIO2 ; HYDROLYSIS ; RAMAN ; ANATASE ; GROWTH ; MORPHOLOGY ; SPECIATION ; PARTICLES ; MECHANISM
资助项目National 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研究方向Chemistry
语种英语
WOS记录号WOS:000507289600048
出版者ROYAL SOC CHEMISTRY
资助机构National 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
源URL[http://ir.ipe.ac.cn/handle/122111/38806]  
专题中国科学院过程工程研究所
通讯作者Liu, Yahui; Qi, Tao
作者单位1.Univ Chinese Acad Sci, Beijing 100190, Peoples R China
2.Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
推荐引用方式
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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来源：过程工程研究所

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