CAS OpenIR
Efficient Separation and Recovery of Vanadium, Titanium, Iron, Magnesium, and Synthesizing Anhydrite from Steel Slag
Ju, Jinrong1,2,3; Feng, Yali1; Li, Haoran2,3; Xu, Chenglong1; Yang, Yi1
2022-01-22
Source PublicationMINING METALLURGY & EXPLORATION
ISSN2524-3462
Pages16
AbstractThe dumping of a large amount of steel slag not only wastes metal resources, but pollutes the ecological environment. In this study, a method for recovery of vanadium, titanium, iron, magnesium, and synthesizing anhydrite from steel slag is proposed. The leaching efficiency of V, Ti, Fe, and Mg was 99.42%, 99.36%, 99.89%, and 99.95%, respectively, under a H2SO4 concentration of 30%, a leaching temperature of 70 degrees C, and a leaching time of 90 min. At the same time, anhydrite with a purity of 93.09% was obtained. The leachate can be reused twice, and the obtained gypsum was calcined at 200celcius to obtain anhydrite. 99.45% V and 99.98% Ti were extracted in leachate by two-stage countercurrent extraction with 25% P507 at an equilibrium pH of 1.6. 99.86% of the Fe in the raffinate can be recovered by the precipitation method. Subsequently, the 0.45 mol/L H2C2O4 was used to precipitate Mg as MgC2O4 center dot 2H(2)O under the pH value of 5.5, indicating that the precipitation efficiency of Mg can reach 98.39%. The present process can effectively separate vanadium, titanium, iron, and magnesium and synthesize anhydrite products realizing the cleaner utilization of steel slag.
KeywordSteel slag Sulfuric acid leaching Solvent extraction Selective stripping Oxalic acid precipitation
DOI10.1007/s42461-022-00552-w
Language英语
WOS KeywordSOLVENT-EXTRACTION ; LEACHING KINETICS ; CONVERTER SLAG ; WASTE-WATER ; CHROMIUM ; TRANSFORMATION ; AGGREGATE ; CONCRETE ; SULFATE
Funding ProjectChina Ocean Mineral Resources RD Association[JS-KTHT-2019-01] ; Major Science and Technology Program for Water Pollution Control and Treatment[2015ZX07205-003] ; National Natural Science Foundation of China[21176242] ; National Natural Science Foundation of China[21176026]
WOS Research AreaMetallurgy & Metallurgical Engineering ; Mining & Mineral Processing
WOS SubjectMetallurgy & Metallurgical Engineering ; Mining & Mineral Processing
Funding OrganizationChina Ocean Mineral Resources RD Association ; Major Science and Technology Program for Water Pollution Control and Treatment ; National Natural Science Foundation of China
WOS IDWOS:000745595300001
PublisherSPRINGER HEIDELBERG
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/51765
Collection中国科学院过程工程研究所
Corresponding AuthorFeng, Yali; Li, Haoran
Affiliation1.Univ Sci & Technol Beijing, Civil & Resource Engn Sch, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Key Lab Biochem Engn, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Ju, Jinrong,Feng, Yali,Li, Haoran,et al. Efficient Separation and Recovery of Vanadium, Titanium, Iron, Magnesium, and Synthesizing Anhydrite from Steel Slag[J]. MINING METALLURGY & EXPLORATION,2022:16.
APA Ju, Jinrong,Feng, Yali,Li, Haoran,Xu, Chenglong,&Yang, Yi.(2022).Efficient Separation and Recovery of Vanadium, Titanium, Iron, Magnesium, and Synthesizing Anhydrite from Steel Slag.MINING METALLURGY & EXPLORATION,16.
MLA Ju, Jinrong,et al."Efficient Separation and Recovery of Vanadium, Titanium, Iron, Magnesium, and Synthesizing Anhydrite from Steel Slag".MINING METALLURGY & EXPLORATION (2022):16.
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