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Recovery of Ni, Co, Mn, and Mg from nickel laterite ores using alkaline oxidation and hydrochloric acid leaching
Meng, Long1,2,3; Qu, Jingkui1,3; Guo, Qiang1,3; Xie, Keqiang2; Zhang, Peiyu1,3; Han, Linxin1,3; Zhang, Guozhi1,3; Qi, Tao1,3
2015-03-25
Source PublicationSEPARATION AND PURIFICATION TECHNOLOGY
ISSN1383-5866
Volume143Issue:MARPages:80-87
Abstract

Many of the impurities present in the hydrochloric acid leaching liquors obtained after the treatment of Ni laterite and serpentine ores can be removed in a preliminary purification step. However, Mn and Mg typically persist in the liquor. In addition, the liquor also contains Ni and Co. This paper describes the separation of Mn and Mg from Ni-Co chloride solutions by alkaline oxidation and acid leaching processes and the preparation of Ni-Co residues, MnO2, and MgO from the separated components. The effects of variables such as time, temperature, pH, and concentrations of NaOH, H2O2, and HCl on the reactive behaviors of the above metallic components are investigated. Under optimal conditions including a NaOH concentration of 5 wt.%, H2O2 concentration of 10 wt.%, HCl concentration of 10 wt.%, and oxidation pH of 9.0, the recoveries of Ni, Co, Mn, and Mg are nearly 100%, 93.07%, 93.76%, and 99.07%, respectively. The products of Ni-Co residues, MnO2, and MgO are suitable as raw materials for industrial applications. (C) 2015 Elsevier B.V. All rights reserved.

KeywordNickel Laterite Ore Acid Leaching Liquor Purification Recovery Separation
SubtypeArticle
Subject AreaEngineering
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.seppur.2015.01.012
Indexed BySCI
Language英语
WOS KeywordLimonitic Laterite ; High-temperature ; Pressure ; Extraction ; Magnesium ; Hydroxide ; Manganese ; Cobalt ; Precipitation ; Technologies
Funding ProjectNational Science Foundation for Distinguished Young Scholars of China [51125018] ; National Key Technologies RD Program [2011BAC06B07] ; Chinese Academy of Sciences [KGZD-EW-201-2] ; National Natural Science Foundation of China [51204153]
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
WOS IDWOS:000351966700011
Citation statistics
Cited Times:14[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/13801
Collection研究所(批量导入)
Corresponding AuthorQu, Jingkui
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
2.Kunming Univ Sci & Technol, Fac Met & Energy Engn, Kunming 650093, Peoples R China
3.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Meng, Long,Qu, Jingkui,Guo, Qiang,et al. Recovery of Ni, Co, Mn, and Mg from nickel laterite ores using alkaline oxidation and hydrochloric acid leaching[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2015,143(MAR):80-87.
APA Meng, Long.,Qu, Jingkui.,Guo, Qiang.,Xie, Keqiang.,Zhang, Peiyu.,...&Qi, Tao.(2015).Recovery of Ni, Co, Mn, and Mg from nickel laterite ores using alkaline oxidation and hydrochloric acid leaching.SEPARATION AND PURIFICATION TECHNOLOGY,143(MAR),80-87.
MLA Meng, Long,et al."Recovery of Ni, Co, Mn, and Mg from nickel laterite ores using alkaline oxidation and hydrochloric acid leaching".SEPARATION AND PURIFICATION TECHNOLOGY 143.MAR(2015):80-87.
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