Simultaneous extraction of gold and zinc from refractory carbonaceous gold ore by chlorination roasting process
文献类型：期刊论文
| 作者 | Wang, Hong-jun2; Feng, Ya-li2; Li, Hao-ran1; Kang, Jin-xing2 |
| 刊名 | TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
 |
| 出版日期 | 2020-04-01 |
| 卷号 | 30期号:4页码:1111-1123 |
| 关键词 | refractory carbonaceous gold ore chlorination roasting thermodynamic calculation gold zinc |
| ISSN号 | 1003-6326 |
| DOI | 10.1016/S1003-6326(20)65282-7 |
| 英文摘要 | A novel process based on chlorination roasting was proposed to simultaneously recover gold and zinc from refractory carbonaceous gold ore by using NaCl as chlorination agent. The effects of roasting temperature, roasting time and NaCl content on the volatilization rates of gold and zinc were investigated. The reaction mechanism and the phase transition process were also analyzed by means of SEM, EDS and XRD. The results demonstrated that under the optimal conditions of NaCl content of 10%, roasting temperature of 800 degrees C, roasting time of 4 h and gas flow rate of 1 L/min, the rates of gold and zinc were 92% and 92.56%, respectively. During low-temperature chlorination roasting stage, a certain content of sulfur was beneficial to the chlorination reactions of gold and zinc; and during high-temperature chlorination roasting stage, the crystal structure of vanadium-bearing mica was destroyed, and the vanadium-containing oxides were beneficial to the chlorinating volatilization of gold and zinc. Eventually, the chlorinated volatiles of gold and zinc could be recovered by alkaline solution. |
| WOS关键词 | VALUABLE METALS ; RECOVERY ; CYANIDE ; SILVER ; PRETREATMENT ; MATTER ; IRON ; BIOOXIDATION ; BEHAVIOR ; VANADIUM |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000531812800024 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/40482]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Feng, Ya-li |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China 2.Univ Sci & Technol Beijing, Sch Civil & Resources Engn, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Hong-jun,Feng, Ya-li,Li, Hao-ran,et al. Simultaneous extraction of gold and zinc from refractory carbonaceous gold ore by chlorination roasting process[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2020,30(4):1111-1123. |
| APA | Wang, Hong-jun,Feng, Ya-li,Li, Hao-ran,&Kang, Jin-xing.(2020).Simultaneous extraction of gold and zinc from refractory carbonaceous gold ore by chlorination roasting process.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,30(4),1111-1123. |
| MLA | Wang, Hong-jun,et al."Simultaneous extraction of gold and zinc from refractory carbonaceous gold ore by chlorination roasting process".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 30.4(2020):1111-1123. |
入库方式： OAI收割
来源：过程工程研究所
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