Knowledge Management System Of Institute of process engineering,CAS
| The separation of gold and vanadium in carbonaceous gold ore by one-step roasting method | |
| Wang, Hongjun1; Feng, Yali1; Li, Haoran2; Kang, Jinxing1 | |
| 2019-10-01 | |
| Source Publication | POWDER TECHNOLOGY
 |
| ISSN | 0032-5910 |
| Volume | 355Pages:191-200 |
| Abstract | The separation of gold and vanadium in the refractory carbonaceous gold ore had been performed by one-step roasting method. The thermodynamic viability of the possible reactions in the process was analyzed based on thermodynamic data. And the effects of experimental parameters such as roasting temperature, roasting time and NaCl dosage on the recovery ratios of gold and vanadium were investigated. Under the optimal conditions of NaCl 10%, roasting temperature 800 degrees C, roasting time 4 h and air gas flow rate 1 L/min, the recovery ratios of gold and vanadium were 92% and 85.34%, respectively, realizing the effective separation of gold and vanadium. In addition, the reaction mechanism and phase transformation during the roasting process were revealed using SEM, EDS and XRD. Results demonstrated that it was beneficial to the chlorination reaction of gold in the presence of pyrite. In the low-temperature roasting, the chlorination reaction of gold was dominant in the roasting process. And in the high-temperature roasting, the chlorination reaction of gold and the sodium reaction of vanadium were dominant in the roasting process. (C) 2019 Published by Elsevier B.V. |
| Keyword | Separation Gold and vanadium Carbonaceous gold ore One-step roasting Chlorination reaction Sodium reaction |
| DOI | 10.1016/j.powtec.2019.07.037 |
| Language | 英语 |
| WOS Keyword | STONE COAL ; EXTRACTING VANADIUM ; BEHAVIOR ; SLAG ; CHLORINATION ; PRETREATMENT ; CHROMIUM ; THIOSULFATE ; CLEANER ; CYANIDE |
| Funding Project | China Ocean Mineral Resource RD Association[DY135-B2-15] ; Major science and technology program for water pollution control and treatment[2015ZX07205-003] ; National Natural Science Foundation of China[21176242] ; National Natural Science Foundation of China[21176026] |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Chemical |
| Funding Organization | China Ocean Mineral Resource RD Association ; Major science and technology program for water pollution control and treatment ; National Natural Science Foundation of China |
| WOS ID | WOS:000499760600020 |
| Publisher | ELSEVIER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/38397 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Feng, Yali |
| Affiliation | 1.Univ Sci & Technol Beijing, Civil & Resource Engn Sch, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China |
| Recommended Citation GB/T 7714 | Wang, Hongjun,Feng, Yali,Li, Haoran,et al. The separation of gold and vanadium in carbonaceous gold ore by one-step roasting method[J]. POWDER TECHNOLOGY,2019,355:191-200. |
| APA | Wang, Hongjun,Feng, Yali,Li, Haoran,&Kang, Jinxing.(2019).The separation of gold and vanadium in carbonaceous gold ore by one-step roasting method.POWDER TECHNOLOGY,355,191-200. |
| MLA | Wang, Hongjun,et al."The separation of gold and vanadium in carbonaceous gold ore by one-step roasting method".POWDER TECHNOLOGY 355(2019):191-200. |
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