| An efficient method of chromium extraction from chromium-containing slag with a high silicon content | |
| Yu, Kai-ping1,2,3; Chen, Bo3; Zhang, Hong-ling1,2; Zhu, Guang-jin1,2; Xu, Hong-bin1,2; Zhang, Yi1,2 | |
| 2016-06-01 | |
| Source Publication | HYDROMETALLURGY
 |
| ISSN | 0304-386X |
| Volume | 162Issue:JUNEPages:86-93 |
| Abstract | An efficient process was proposed for extracting chromium from chromium-containing slag after desilication with aqueous NaOH solution. The effect of the NaOH concentration, liquid-to-solid mass ratio, and leaching temperature on the leaching rate of silicon was investigated. The results showed that 83.78% of the silicon, 41.87% of the aluminum, and 46.42% of the vanadium were removed from the slag under suitable conditions. The kinetic analysis results showed that the leaching rate of silicon is controlled by a chemical reaction under two regimes due to the two silicon-bearing minerals presented in the slag. The first stage is limited by the reaction between NaOH and SiO2, whereas the second stage is subject to the reaction between NaOH and 2MgO center dot 2Al(2)O(3)center dot 5SiO(2). The corresponding apparent activation energies were calculated to be 67.27 kJ/mol and 35.82 kJ/mol, respectively. The extraction rate of chromium from the leaching residue using lime-free roasting reached 98.41%, which was highly superior to the 9.85% obtained from the slag without desilication. (C) 2016 Elsevier B.V. All rights reserved. |
| Keyword | Chromium-containing Slag Desilication Kinetics Lime-free Roasting |
| Subtype | Article |
| WOS Headings | Science & Technology ; Technology |
| DOI | 10.1016/j.hydromet.2016.02.020 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | VANADIUM ; FLOTATION ; IRON ; COLLECTOR ; ORES |
| WOS Research Area | Metallurgy & Metallurgical Engineering |
| WOS Subject | Metallurgy & Metallurgical Engineering |
| Funding Organization | National Natural Science Foundation of China(11204304 ; National Basic Research Program (973 Program) of China(2013CB632600) ; National High-tech Research and Development Program of China(2011AA060702) ; 21376251 ; 21406233) |
| WOS ID | WOS:000376544300012 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/21089 |
| Collection | 湿法冶金清洁生产技术国家工程实验室 |
| Affiliation | 1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 3.Fuzhou Univ, Coll Zijin Min, Fuzhou 350108, Fujian, Peoples R China |
| Recommended Citation GB/T 7714 | Yu, Kai-ping,Chen, Bo,Zhang, Hong-ling,et al. An efficient method of chromium extraction from chromium-containing slag with a high silicon content[J]. HYDROMETALLURGY,2016,162(JUNE):86-93. |
| APA | Yu, Kai-ping,Chen, Bo,Zhang, Hong-ling,Zhu, Guang-jin,Xu, Hong-bin,&Zhang, Yi.(2016).An efficient method of chromium extraction from chromium-containing slag with a high silicon content.HYDROMETALLURGY,162(JUNE),86-93. |
| MLA | Yu, Kai-ping,et al."An efficient method of chromium extraction from chromium-containing slag with a high silicon content".HYDROMETALLURGY 162.JUNE(2016):86-93. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| An efficient method （2815KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | Application Full Text | |
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