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Extraction of metals from saprolitic laterite ore through pressure hydrochloric-acid selective leaching
Zhang, Peiyu1,2,3; Guo, Qiang1,2; Wei, Guangye1,2; Meng, Long1,2,4; Han, Linxin1,2; Qu, Jingkui1,2; Qi, Tao1,2
2015-10-01
Source PublicationHYDROMETALLURGY
ISSN0304-386X
Volume157Issue:OCTPages:149-158
Abstract

In this study, pressure hydrochloric-add selective leaching was used to leach Ni and Co from saprolitic laterite ore on the basis of potential-pH diagrams constructed for Fe-Si-Cl-H2O and Ni-Si-Cl-H2O systems. The leaching of Ni, Co, Mg, Mn, and Fe was investigated under various conditions. The results showed that the optimal output was obtained under the following conditions: leaching temperature of 150 degrees C, HCl concentration of 350 g/L, liquid to solid ratio (I/s) of 1.0, and leaching time of 90 min. The saprolitic laterite and leached residue were characterized via X-ray diffraction analysis, infrared spectrometry, and mineral liberation analysis. The related acid leaching mechanism was analyzed based on the results, and the kinetics of the leaching process was discussed. The results of this study suggest that pressure hydrochloric-acid selective leaching is a viable method for efficiently leaching Ni from laterite ores. (C) 2015 Elsevier B.V. All rights reserved.

KeywordSaprolitic Laterite Ore Pressure Leaching Hydrochloric Acid Nickel Leaching Mechanism
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.hydromet.2015.08.007
Indexed BySCI
Language英语
WOS KeywordLIMONITIC LATERITE ; NICKEL LATERITE ; SULFURIC-ACID ; CARBOTHERMIC REDUCTION ; NATURAL GOETHITE ; ALPHA-FEOOH ; PART II ; SPECTROSCOPY ; KINETICS ; NI
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
Funding OrganizationNational Technology Support Project(2011BAC06B07) ; National Science Foundation for Distinguished Young Scholars of China(51125018) ; National Natural Science Foundation of China(51204153)
WOS IDWOS:000364252700020
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/19842
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
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Kunming Univ Sci & Technol, Kunming 650500, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Peiyu,Guo, Qiang,Wei, Guangye,et al. Extraction of metals from saprolitic laterite ore through pressure hydrochloric-acid selective leaching[J]. HYDROMETALLURGY,2015,157(OCT):149-158.
APA Zhang, Peiyu.,Guo, Qiang.,Wei, Guangye.,Meng, Long.,Han, Linxin.,...&Qi, Tao.(2015).Extraction of metals from saprolitic laterite ore through pressure hydrochloric-acid selective leaching.HYDROMETALLURGY,157(OCT),149-158.
MLA Zhang, Peiyu,et al."Extraction of metals from saprolitic laterite ore through pressure hydrochloric-acid selective leaching".HYDROMETALLURGY 157.OCT(2015):149-158.
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