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A study on the synthesis of coarse TiO2 powder with controlled particle sizes and morphology via hydrolysis
Zhang, Ying1,2,3; Fang, Zhigang Zak1; Sun, Pei1; Huang, Zhe1; Zheng, Shili2,3
2021-11-01
Source PublicationPOWDER TECHNOLOGY
ISSN0032-5910
Volume393Pages:650-658
AbstractThe hydrolysis of Ti(IV)-bearing acid solution to prepare titanic acid particles is a crucial step for the production of TiO2 material. The hydrolysis which takes place in HCl medium was investigated particularly with the purpose of preparing coarse particles with narrow size distributions for applications such as Ti metal powder production. The key factors that affect the hydrolysis ratio and rate, the morphology, and the size of the titanic acid particles were investigated. The results illustrated that temperature, initial free acid and equivalent TiO2 concentrations cross-influence the above-mentioned key attributes of the product particles. Near spherical rutile particles with a D50 of around 30 mu m were obtained under the optimal parameters. Four stages, including incubation, acceleration, near steady-state reaction, and deceleration, were observed during the progress of the hydrolysis reaction, while the precipitate morphology evolved from irregular to smooth, and to round as a result of the nucleus agglomeration. (C) 2021 Elsevier B.V. All rights reserved.
KeywordHCl solution Hydrolysis Coarse particle TiCl4 TiO2
DOI10.1016/j.powtec.2021.08.014
Language英语
WOS KeywordASSISTED MAGNESIOTHERMIC REDUCTION ; TITANIUM-DIOXIDE ; CHEMICAL PATHWAY ; NANOPARTICLES ; RUTILE
Funding ProjectARPA-E of the US Department of Energy ; Beijing Natural Science Foundation[2192056] ; Natural Science Foundation of China[51771179] ; National Key R&D Program of China[2018YFC1900505] ; State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationARPA-E of the US Department of Energy ; Beijing Natural Science Foundation ; Natural Science Foundation of China ; National Key R&D Program of China ; State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization
WOS IDWOS:000696320700013
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/50178
Collection中国科学院过程工程研究所
Corresponding AuthorZhang, Ying; Fang, Zhigang Zak
Affiliation1.Univ Utah, Dept Mat Sci & Engn, Salt Lake City, UT 84112 USA
2.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
3.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Ying,Fang, Zhigang Zak,Sun, Pei,et al. A study on the synthesis of coarse TiO2 powder with controlled particle sizes and morphology via hydrolysis[J]. POWDER TECHNOLOGY,2021,393:650-658.
APA Zhang, Ying,Fang, Zhigang Zak,Sun, Pei,Huang, Zhe,&Zheng, Shili.(2021).A study on the synthesis of coarse TiO2 powder with controlled particle sizes and morphology via hydrolysis.POWDER TECHNOLOGY,393,650-658.
MLA Zhang, Ying,et al."A study on the synthesis of coarse TiO2 powder with controlled particle sizes and morphology via hydrolysis".POWDER TECHNOLOGY 393(2021):650-658.
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