CAS OpenIR  > 湿法冶金清洁生产技术国家工程实验室
Precipitation of alpha-Fe2O3 and recovery of Ni and Co from synthetic laterite-leaching solutions
Zhang, Peiyu1,2; Guo, Qiang1; Wei, Guangye1; Qu, Jingkui1; Qi, Tao1
2015-03-01
Source PublicationHYDROMETALLURGY
ISSN0304-386X
Volume153Pages:21-29
AbstractAtmospheric hydrochloric-acid leaching of nickel laterite can produce a leaching solution containing a large amount of Fe. To recover Ni and Co, Fe should be separated from the laterite-leaching solutions. In this study, hydrolytic distillation was used to remove Fe from the synthetic laterite-leaching solutions; Ni and Co remained as soluble chlorides in the solutions, while most Fe was removed as Fe2O3. The conversion of Fe, recovery of Ni and Co, recovery of HCI, and the concentration of HCI, were investigated under various conditions. The results showed that the optimal output was obtained under the following process conditions: the hydrolysis temperature was 170 degrees C, the pressure was 0.03 MPa, the water flow rate was 1.67 mL/min, and the hydrolysis duration was 2 h. The effects of impurities under the optimized conditions were also studied, showing that as the amount of metal chlorides increased, the conversion of Fe decreased. The residues were characterized by X-ray diffraction analysis and scanning electron microscopy with X-ray energy-dispersive spectroscopy. Using the results, a growth model of alpha-Fe2O3 (hematite) spheres from the synthetic laterite-leaching solutions was constructed. (C) 2015 Elsevier B.V. All rights reserved.
KeywordLaterite-leaching Solutions Hydrolysis ReCovery Of Ni And Co Growth Model Of Alpha-fe2o3
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.hydromet.2015.01.011
Indexed BySCI
Language英语
WOS KeywordFORCED HYDROLYSIS ; FECL3 SOLUTIONS ; FORMATION MECHANISM ; LIMONITIC LATERITE ; HEMATITE PARTICLES ; HYDROCHLORIC-ACID ; GOETHITE ; CHLORIDE ; IRON ; MICROSTRUCTURE
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000353003600004
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/16743
Collection湿法冶金清洁生产技术国家工程实验室
Affiliation1.Chinese Acad Sci, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Peiyu,Guo, Qiang,Wei, Guangye,et al. Precipitation of alpha-Fe2O3 and recovery of Ni and Co from synthetic laterite-leaching solutions[J]. HYDROMETALLURGY,2015,153:21-29.
APA Zhang, Peiyu,Guo, Qiang,Wei, Guangye,Qu, Jingkui,&Qi, Tao.(2015).Precipitation of alpha-Fe2O3 and recovery of Ni and Co from synthetic laterite-leaching solutions.HYDROMETALLURGY,153,21-29.
MLA Zhang, Peiyu,et al."Precipitation of alpha-Fe2O3 and recovery of Ni and Co from synthetic laterite-leaching solutions".HYDROMETALLURGY 153(2015):21-29.
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