Selective extraction of vanadium from pre-oxidized vanadium slag by carbochlorination in fluidized bed reactor
文献类型:期刊论文
作者 | Du, Guangchao1,2,3; Fan, Chuanlin1,2; Yang, Haitao1,2; Zhu, Qingshan1,2 |
刊名 | JOURNAL OF CLEANER PRODUCTION |
出版日期 | 2019-11-10 |
卷号 | 237页码:10 |
ISSN号 | 0959-6526 |
关键词 | Vanadium Extraction Vanadium Slag Selective Chlorination Pre-oxidization Thermodynamics |
DOI | 10.1016/j.jclepro.2019.117765 |
英文摘要 | Most of the vanadium (V) is industrially extracted from vanadium slag, a byproduct in steelmaking, via the sodium roasting-water leaching or calcification roasting-acid leaching process, which usually suffers from environment pollution or decrease in product purity. In this paper, a novel process of vanadium extraction featuring carbochlorination of pre-oxidized vanadium slag with chlorine (Cl-2) and nitrogen (N-2) mixture in a fluidized bed reactor was proposed. And the selectivity between vanadium and iron (Fe) in the slag was primarily concerned, due to the high content of the latter in vanadium slag. The thermodynamic analysis reveals that there exists a favorable zone for selective chlorination of V from Fe compounds. Subsequently, carbochlorination experiments were conducted to investigate the influences of chlorination temperature and time, addition amount of petroleum coke and pressure fraction of chlorine on extraction of V and Fe. And 87.47% of V together with 18.79% of Fe can be extracted from the pre-oxidized vanadium slag by chlorination at 650 degrees C for 120 min with chlorine pressure fraction [P(Cl-2)/ P(Cl-2+N-2)] = 0.5 and petroleum coke mass fraction in raw materials for chlorination Rc = 10%. The results demonstrate that the selective chlorination process has good potential to recover vanadium from vanadium slags in efficient and clean ways. (C) 2019 Elsevier Ltd. All rights reserved. |
WOS关键词 | Chlorination Kinetics ; Converter Slag ; Recovery ; Chromium ; Titanium ; Catalysts ; Temperature ; Mechanism ; Zirconia ; Dioxide |
资助项目 | National Natural Science Foundation of China[51774262] ; National Natural Science Foundation of China[51504231] ; National Natural Science Foundation of China[51504232] ; National Natural Science Foundation of China[21736010] ; Open Project of State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization[CNMRCUKF1704] |
WOS研究方向 | Science & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology |
语种 | 英语 |
出版者 | ELSEVIER SCI LTD |
WOS记录号 | WOS:000483462700080 |
资助机构 | National Natural Science Foundation of China ; Open Project of State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization |
源URL | [http://ir.ipe.ac.cn/handle/122111/30669] |
专题 | 中国科学院过程工程研究所 |
通讯作者 | Fan, Chuanlin; Zhu, Qingshan |
作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Pangang Grp Res Inst Co Ltd, State Key Lab Vanadium & Titanium Resources Compr, Panzhihua 617000, Sichuan, Peoples R China |
推荐引用方式 GB/T 7714 | Du, Guangchao,Fan, Chuanlin,Yang, Haitao,et al. Selective extraction of vanadium from pre-oxidized vanadium slag by carbochlorination in fluidized bed reactor[J]. JOURNAL OF CLEANER PRODUCTION,2019,237:10. |
APA | Du, Guangchao,Fan, Chuanlin,Yang, Haitao,&Zhu, Qingshan.(2019).Selective extraction of vanadium from pre-oxidized vanadium slag by carbochlorination in fluidized bed reactor.JOURNAL OF CLEANER PRODUCTION,237,10. |
MLA | Du, Guangchao,et al."Selective extraction of vanadium from pre-oxidized vanadium slag by carbochlorination in fluidized bed reactor".JOURNAL OF CLEANER PRODUCTION 237(2019):10. |
入库方式: OAI收割
来源:过程工程研究所
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