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Preparation of rutile titanium dioxide pigment from low-grade titanium slag pretreated by the NaOH molten salt method
Liu Yahui1,2; Meng Fancheng1,2; Fang Fuqiang1,2; Wang Weijing1,2; Chu Jinglong1,2; Qi Tao1,2
2016-02-01
Source PublicationDYES AND PIGMENTS
ISSN0143-7208
Volume125Issue:FEBPages:384-391
AbstractLow-grade titanium slag with a high accumulation of Mg, Al, Si, and the refractory structure of spinel, was sodiumized-oxidized to make it usable in the sulfate process for TiO2 pigment production. In the sodiumized-oxidized process, the Ti3O5 and Mg2SiO4 transform into Na2TiO3 and Na2MgSiO4, respectively. From combined ICP-OES with XRD refinement of the molten NaOH intermediate, the ideal stoichiometric ratio of NaOH to slag was calculated to be 0.9:1. After acidolysis of the intermediate, the obtained TiOSO4 solution, with Mg2+ and Al3+ impurities, was hydrolyzed to prepare metatitanic acid (H2TiO3) with a suitable particle size D(0.5) of 1.0-1.5 pi m. The particle size D(0.5) of the hydrolyzed H2TiO3 decreased, while the concentration of Mg2+ and Al3+ increased. Finally, under optimal doping and calcination conditions, the rutile content of the prepared sample was 97.0%, and the achromic abilities of TCS and SCX were 1937 and 1.54, respectively. (c) 2015 Elsevier Ltd. All rights reserved.
KeywordPretreatment Of Low-grade Titanium Slag Naoh Molten Salt Method Sulfate Process Hydrolysis With Impurity Doping Of H2tio3 Rutile Tio2 Pigments
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1016/j.dyepig.2015.10.036
Indexed BySCI
Language英语
WOS KeywordSODIUM-HYDROXIDE ; SULFATE-SOLUTION ; METATITANIC ACID ; WHITE PIGMENT ; HYDROLYSIS ; TIO2 ; TRANSFORMATION ; KINETICS ; DECOMPOSITION ; CALCINATION
WOS Research AreaChemistry ; Engineering ; Materials Science
WOS SubjectChemistry, Applied ; Engineering, Chemical ; Materials Science, Textiles
Funding OrganizationNational Natural Science Foundation of China(51090380 ; Major state Basic Research Development Program of China(2013CB632604) ; National Science Foundation for Distinguished Young Scholars of China(51125018) ; 51402303 ; 51104139 ; 51004091 ; 21006115)
WOS IDWOS:000367777100048
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/20258
Collection湿法冶金清洁生产技术国家工程实验室
Affiliation1.Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Liu Yahui,Meng Fancheng,Fang Fuqiang,et al. Preparation of rutile titanium dioxide pigment from low-grade titanium slag pretreated by the NaOH molten salt method[J]. DYES AND PIGMENTS,2016,125(FEB):384-391.
APA Liu Yahui,Meng Fancheng,Fang Fuqiang,Wang Weijing,Chu Jinglong,&Qi Tao.(2016).Preparation of rutile titanium dioxide pigment from low-grade titanium slag pretreated by the NaOH molten salt method.DYES AND PIGMENTS,125(FEB),384-391.
MLA Liu Yahui,et al."Preparation of rutile titanium dioxide pigment from low-grade titanium slag pretreated by the NaOH molten salt method".DYES AND PIGMENTS 125.FEB(2016):384-391.
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