CAS OpenIR
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 PublicationPOWDER TECHNOLOGY
ISSN0032-5910
Volume355Pages:191-200
AbstractThe 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.
KeywordSeparation Gold and vanadium Carbonaceous gold ore One-step roasting Chlorination reaction Sodium reaction
DOI10.1016/j.powtec.2019.07.037
Language英语
WOS KeywordSTONE COAL ; EXTRACTING VANADIUM ; BEHAVIOR ; SLAG ; CHLORINATION ; PRETREATMENT ; CHROMIUM ; THIOSULFATE ; CLEANER ; CYANIDE
Funding ProjectChina 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 AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationChina Ocean Mineral Resource RD Association ; Major science and technology program for water pollution control and treatment ; National Natural Science Foundation of China
WOS IDWOS:000499760600020
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/38397
Collection中国科学院过程工程研究所
Corresponding AuthorFeng, Yali
Affiliation1.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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