Characterization of elemental sulfur in chalcopyrite leach residues using simultaneous thermal analysis

doi:10.1016/j.hydromet.2019.05.020

	Characterization of elemental sulfur in chalcopyrite leach residues using simultaneous thermal analysis
	Lv, Cuicui 1,2,3; Wu, Hao 1; Lin, Weigang 1,3; Illerup, Jytte Boll 1; Karcz, Adam Paul 1; Ye, Shufeng 2; Damo, Anne Juul 1
刊名	HYDROMETALLURGY
	2019-09-01
卷号	188 页码:22-30
关键词	Chalcopyrite leach residue Elemental sulfur Allotrope Quantification STA
ISSN号	0304-386X
DOI	10.1016/j.hydromet.2019.05.020
英文摘要	A key component in the atmospheric leaching of metal sulfides is the oxidation of sulfide to either elemental sulfur or hexavalent sulfur. The final oxidation state of sulfur significantly influences the economic viability of a leaching process because of its effects on oxygen consumption, acid generation, and surface passivation. Thus, in the process of developing new leaching technologies, it is important to both characterize and quantify the sulfur oxidation products. In this work, a new method based on Simultaneous Thermal Analysis (STA) is established for the quantification and thermal characterization of elemental sulfur in chalcopyrite leach residues. The STA method refers to the simultaneous application of thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). The DSC measurements yield information on phase transformation, which can be used to identify the sulfur allotropes. The linear relationship between the melting enthalpy of beta-sulfur determined by DSC and the sulfur content determined by TGA is expediently used to quantify the unknown sulfur content in leach residues.
资助项目	Innovation Fund Denmark ; FLSmidth A/S ; Hempel ; Technical University of Denmark[39-2013-2] ; SDC ; FLSmidth Company
WOS关键词	FERRIC ION ; PART I ; DISSOLUTION ; ELECTROCHEMISTRY ; ALLOTROPES ; KINETICS ; PASSIVATION ; BEHAVIOR ; SURFACE
WOS研究方向	Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000483641000003
资助机构	Innovation Fund Denmark ; FLSmidth A/S ; Hempel ; Technical University of Denmark ; SDC ; FLSmidth Company
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/30760]
专题	中国科学院过程工程研究所
通讯作者	Wu, Hao; Damo, Anne Juul
作者单位	1.Tech Univ Denmark, Dept Chem & Biochem Engn, Bldg 229, DK-2800 Lyngby, Denmark 2.Chinese Acad Sci, State Key Lab Multiphase Complex Syst, Inst Proc Engn, North 2nd St, Beijing, Peoples R China 3.Univ Chinese Acad Sci, Sino Danish Coll, 380 Huaibeizhuang, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Lv, Cuicui,Wu, Hao,Lin, Weigang,et al. Characterization of elemental sulfur in chalcopyrite leach residues using simultaneous thermal analysis[J]. HYDROMETALLURGY,2019,188:22-30.
APA	Lv, Cuicui.,Wu, Hao.,Lin, Weigang.,Illerup, Jytte Boll.,Karcz, Adam Paul.,...&Damo, Anne Juul.(2019).Characterization of elemental sulfur in chalcopyrite leach residues using simultaneous thermal analysis.HYDROMETALLURGY,188,22-30.
MLA	Lv, Cuicui,et al."Characterization of elemental sulfur in chalcopyrite leach residues using simultaneous thermal analysis".HYDROMETALLURGY 188(2019):22-30.