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Removal of zirconium from hydrous titanium dioxide
Ma, Xue-qin1,2,3; Liu, Ya-hui1,2; Chu, Jing-long1,2; Li, Jie1,2; Xue, Tian-yan1,2; Wang, Li-na1,2; Qi, Tao1,2
2013
Source PublicationINTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
Volume20Issue:1Pages:1-8
AbstractA method was proposed for removing zirconium (Zr) from hydrous titanium dioxide (HTD) by the NaF solution. The effects of main parameters, i.e. pH values, NaF dosage, temperature and retention time, on the removal of zirconium were studied. The optimal conditions were found as the following: pH value, <5.5; molar ratio of NaF to TiO2, 0.6; retention time, 80 min; and temperature, 80 degrees C. The removal rate of Zr under the optimized conditions was above 87.7%. The adsorption energy of the preferential absorption of hydrofluoric acid for Zr(OH)(2)SO4(OH2) on the (001) crystal surface of HTD was determined by theoretical calculation. The possible mechanism of the removal process was also discussed.
KeywordZirconium Titanium Dioxide Removal Density Functional Theory Microstructure Adsorption
SubtypeArticle
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
Indexed BySCI
Language英语
WOS KeywordSODIUM-HYDROXIDE ; AB-INITIO ; TIO2 ; ACID ; DECOMPOSITION ; MOLECULES ; ANATASE ; PIGMENT ; SLAG
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing
WOS IDWOS:000313198200001
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/13378
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, Inst Proc Engn, 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
3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Ma, Xue-qin,Liu, Ya-hui,Chu, Jing-long,et al. Removal of zirconium from hydrous titanium dioxide[J]. INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,2013,20(1):1-8.
APA Ma, Xue-qin.,Liu, Ya-hui.,Chu, Jing-long.,Li, Jie.,Xue, Tian-yan.,...&Qi, Tao.(2013).Removal of zirconium from hydrous titanium dioxide.INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,20(1),1-8.
MLA Ma, Xue-qin,et al."Removal of zirconium from hydrous titanium dioxide".INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS 20.1(2013):1-8.
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