Direct Leaching of Vanadium from Vanadium-bearing Steel Slag Using NaOH Solutions: A Case Study

doi:10.1080/08827508.2020.1762182

	Direct Leaching of Vanadium from Vanadium-bearing Steel Slag Using NaOH Solutions: A Case Study
	Wan, Junfeng 4,5; Du, Hao 2,5; Gao, Feng 1; Wang, Shaona 5; Gao, Minglei 3; Liu, Biao 5; Zhang, Yi 5
刊名	MINERAL PROCESSING AND EXTRACTIVE METALLURGY REVIEW
	2020-05-14
页码	11
关键词	Vanadium-bearing steel slag alkaline leaching leaching mechanism valence state of vanadium
ISSN号	0882-7508
DOI	10.1080/08827508.2020.1762182
英文摘要	Vanadium-bearing steel slag is a typical solid waste in the steel industry and a valuable secondary resource for vanadium production. In this paper, a direct alkaline leaching process was proposed to extract valuable vanadium and achieve comprehensive utilization of the residue by incorporating the new process into the conventional Bayer alumina production process. The leaching mechanism showed the feasibility of alkaline leaching. The effects of alkaline concentration, temperature, particle size, liquid-solid ratio (mass ratio), and stirring speed on the process were investigated, and the recovery of vanadium was found to achieve 68.4% under optimal conditions. Both the internal diffusion and the interface reaction were found by kinetic analysis to be the controlling steps of the leaching reaction, and the apparent reaction activation energy value of 26.67 kJ/mol was calculated. The valence state of the vanadium in the steel slag was analyzed in detail, finding that low-valent (V3+) and high-valent (V4+ and V5+) vanadium were both present in the steel slag. By introducing oxygen into the reaction system, the recovery could be improved to 85.6%, which was 17.2% higher than that of non-oxidative leaching.
资助项目	Hebei Key S&T Program of Hebei[19044011Z] ; Natural Science Foundation of Hebei Province[B2019318014] ; Natural Science Foundation of Hebei Province[B2019318017] ; Natural Science Foundation of Hebei Province[E2019318015]
WOS关键词	LD CONVERTER SLAG ; EXTRACTION ; CHROMIUM ; RECOVERY ; OPTIMIZATION ; KINETICS ; REMOVAL ; CLEANER ; ASH
WOS研究方向	Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing
语种	英语
出版者	TAYLOR & FRANCIS INC
WOS记录号	WOS:000533769500001
资助机构	Hebei Key S&T Program of Hebei ; Natural Science Foundation of Hebei Province
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/40527]
专题	中国科学院过程工程研究所
通讯作者	Liu, Biao
作者单位	1.Northeastern Univ, Sch Met, Shenyang, Peoples R China 2.Univ Chinese Acad Sci, Int Coll, Beijing, Peoples R China 3.Hebei Iron & Steel Grp Co Ltd, Chengde Iron & Steel Grp Co Ltd, Res Ctr Vanadium & Titanium Technol, Chengde, Hebei, Peoples R China 4.Tianjin Univ, Sch Chem Engn & Technol, Tianjin, Peoples R China 5.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Wan, Junfeng,Du, Hao,Gao, Feng,et al. Direct Leaching of Vanadium from Vanadium-bearing Steel Slag Using NaOH Solutions: A Case Study[J]. MINERAL PROCESSING AND EXTRACTIVE METALLURGY REVIEW,2020:11.
APA	Wan, Junfeng.,Du, Hao.,Gao, Feng.,Wang, Shaona.,Gao, Minglei.,...&Zhang, Yi.(2020).Direct Leaching of Vanadium from Vanadium-bearing Steel Slag Using NaOH Solutions: A Case Study.MINERAL PROCESSING AND EXTRACTIVE METALLURGY REVIEW,11.
MLA	Wan, Junfeng,et al."Direct Leaching of Vanadium from Vanadium-bearing Steel Slag Using NaOH Solutions: A Case Study".MINERAL PROCESSING AND EXTRACTIVE METALLURGY REVIEW (2020):11.