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Leaching of Titanium and Silicon from Low-Grade Titanium Slag Using Hydrochloric Acid Leaching
Zhao, Longsheng1,2,3; Wang, Lina1; Qi, Tao1; Chen, Desheng1; Zhao, Hongxin1; Liu, Yahui1; Wang, Weijing1
2018-10-01
Source PublicationJOM
ISSN1047-4838
Volume70Issue:10Pages:1985-1990
Abstract

Acid-leaching behaviors of the titanium slag obtained by selective reduction of vanadium-bearing titanomagnetite concentrates were investigated. It was found that the optimal leaching of titanium and silicon were 0.7% and 1.5%, respectively. The titanium and silicon in the titanium slag were firstly dissolved in the acidic solution to form TiO2+ and silica sol, and then rapidly reprecipitated, forming hydrochloric acid (HCl) leach residue. Most of the silicon presented in the HCl leach residue as floccules-like silica gel, while most of the titanium was distributed in the nano-sized rod-like clusters with crystallite refinement and intracrystalline defects, and, as such, 94.3% of the silicon was leached from the HCl leach residue by alkaline desilication, and 96.5% of the titanium in the titanium-rich material with some rutile structure was then digested by the concentrated sulfuric acid. This provides an alternative route for the comprehensive utilization of titanium and silicon in titanium slag.

DOI10.1007/s11837-018-2929-6
Language英语
WOS KeywordVanadium-bearing Titanomagnetite ; Panzhihua Ilmenite ; Mesoporous Sba-15 ; Synthetic Rutile ; Molecular-sieve ; Furnace Slag ; Chromium ; Recovery ; Reduction ; Silicates
Funding ProjectKey Research Program of Frontier Sciences of Chinese Academy of Sciences[QYZDJ-SSW-JSC021] ; Science and Technology Service Network Initiative[KFJ-SW-STS-148] ; Science and Technology Service Network Initiative[KFJ-STS-ZDTP-040] ; National Natural Science Foundation of China[51374191] ; National Natural Science Foundation of China[21506233] ; National Natural Science Foundation of China[51402303] ; National Natural Science Foundation of China[21606241] ; Open Cooperation Program of Science and Technology of Henan Province[172106000012]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering ; Mineralogy ; Mining & Mineral Processing
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Mineralogy ; Mining & Mineral Processing
Funding OrganizationKey Research Program of Frontier Sciences of Chinese Academy of Sciences ; Science and Technology Service Network Initiative ; National Natural Science Foundation of China ; Open Cooperation Program of Science and Technology of Henan Province
WOS IDWOS:000445161500010
PublisherSPRINGER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/26021
Collection中国科学院过程工程研究所
Corresponding AuthorWang, Lina
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydrometallurg Cleaner Prod Technol, Beijing 100190, Peoples R China
2.Gen Res Inst Nonferrous Met, Natl Engn Res Ctr Rare Earth Mat, Beijing 100088, Peoples R China
3.Grirem Adv Mat Co Ltd, Beijing 100088, Peoples R China
Recommended Citation
GB/T 7714
Zhao, Longsheng,Wang, Lina,Qi, Tao,et al. Leaching of Titanium and Silicon from Low-Grade Titanium Slag Using Hydrochloric Acid Leaching[J]. JOM,2018,70(10):1985-1990.
APA Zhao, Longsheng.,Wang, Lina.,Qi, Tao.,Chen, Desheng.,Zhao, Hongxin.,...&Wang, Weijing.(2018).Leaching of Titanium and Silicon from Low-Grade Titanium Slag Using Hydrochloric Acid Leaching.JOM,70(10),1985-1990.
MLA Zhao, Longsheng,et al."Leaching of Titanium and Silicon from Low-Grade Titanium Slag Using Hydrochloric Acid Leaching".JOM 70.10(2018):1985-1990.
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