Characterization of elemental sulfur in chalcopyrite leach residues using simultaneous thermal analysis
文献类型：期刊论文
| 作者 | Lv, Cuicui1,2,3; Wu, Hao1; Lin, Weigang1,3; Illerup, Jytte Boll1; Karcz, Adam Paul1; Ye, Shufeng2; Damo, Anne Juul1 |
| 刊名 | HYDROMETALLURGY
 |
| 出版日期 | 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. |
| WOS关键词 | FERRIC ION ; PART I ; DISSOLUTION ; ELECTROCHEMISTRY ; ALLOTROPES ; KINETICS ; PASSIVATION ; BEHAVIOR ; SURFACE |
| 资助项目 | Innovation Fund Denmark ; FLSmidth A/S ; Hempel ; Technical University of Denmark[39-2013-2] ; SDC ; FLSmidth Company |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000483641000003 |
| 出版者 | ELSEVIER |
| 资助机构 | Innovation Fund Denmark ; FLSmidth A/S ; Hempel ; Technical University of Denmark ; SDC ; FLSmidth Company |
| 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. |
入库方式： OAI收割
来源：过程工程研究所
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