中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Separation and recovery of V, Ti, Fe and Ca from acidic wastewater and vanadium-bearing steel slag based on a collaborative utilization process

文献类型:期刊论文

作者Ju, Jinrong1,2,3; Feng, Yali3; Li, Haoran1,2; Liu, Shunliang3; Xu, Chenglong1,2,3
刊名SEPARATION AND PURIFICATION TECHNOLOGY
出版日期2021-12-01
卷号276页码:11
ISSN号1383-5866
关键词Vanadium-bearing steel slag Acidic wastewater Collaborative utilization Solvent extraction Direct leaching
DOI10.1016/j.seppur.2021.119335
英文摘要Two typical wastes (acidic wastewater and vanadium-bearing steel slag) produced in the metallurgical process of vanadium-titanium magnetite not only pose a huge threat to the environment, but also waste a lot of resources such as V, Ti, and Fe. In order to effectively treat the two wastes and recover the resources such as V, Ti, Fe and Ca, a collaborative utilization process has been studied. When the O/A ratio of 1.5, the P204 concentration of 20% (v/v), the single-stage extraction rate of titanium was above 96%. After two-stage countercurrent extraction, the extraction rate of Ti can be reached 99.86%, while the co-extraction rate of Fe was less than 3%. The leaching rates of V, Fe, and Mg in the vanadium-bearing steel slag were respectively 98.68%, 99.67% and 99.63% under the condition of a ratio of the volume of the raffinate after titanium extraction to the mass of the vanadium-bearing steel slag at 8:1 (75 min at 60 degrees C). The analysis through XRD proves that the leaching conditions had an effect on the composition of the leaching slag, of which temperature had the greatest impact on it, and the composition of the leaching slag was anhydrite at 90 degrees C. After the leaching solution was pre-reduced with ammonium sulfite, the P507 extractant can separate V and Fe very well, and the V-loaded organic phase was treated by ammonium carbonate stripping and calcination process, the product of V2O5 with a purity of 99.03% can be obtained. Additionally, after the raffinate after vanadium extraction was oxidized with H2O2 solution and neutralized with ammonia solution, the solid product and solution obtained by filtration were respectively processed to obtain a roasted slag containing 72.14% Fe2O3 and a product of 99.09% purity of (NH4)2SO4.
WOS关键词SULFURIC-ACID ; SOLVENT-EXTRACTION ; RED GYPSUM ; TITANIUM ; IRON ; MEDIA ; BATCH
资助项目China 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研究方向Engineering
语种英语
出版者ELSEVIER
WOS记录号WOS:000681685100008
资助机构China Ocean Mineral Resources RD Association ; Major Science and Technology Program for Water Pollution Control and Treatment ; National Natural Science Foundation of China
源URL[http://ir.ipe.ac.cn/handle/122111/49593]  
专题中国科学院过程工程研究所
通讯作者Feng, Yali; Li, Haoran
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Key Lab Biochem Engn, Beijing 100190, Peoples R China
3.Univ Sci & Technol Beijing, Civil & Resource Engn Sch, Beijing 100083, Peoples R China
推荐引用方式
GB/T 7714
Ju, Jinrong,Feng, Yali,Li, Haoran,et al. Separation and recovery of V, Ti, Fe and Ca from acidic wastewater and vanadium-bearing steel slag based on a collaborative utilization process[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2021,276:11.
APA Ju, Jinrong,Feng, Yali,Li, Haoran,Liu, Shunliang,&Xu, Chenglong.(2021).Separation and recovery of V, Ti, Fe and Ca from acidic wastewater and vanadium-bearing steel slag based on a collaborative utilization process.SEPARATION AND PURIFICATION TECHNOLOGY,276,11.
MLA Ju, Jinrong,et al."Separation and recovery of V, Ti, Fe and Ca from acidic wastewater and vanadium-bearing steel slag based on a collaborative utilization process".SEPARATION AND PURIFICATION TECHNOLOGY 276(2021):11.

入库方式: OAI收割

来源:过程工程研究所

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