Sai He, hang-qiaoYang, Su-qin Li, Chang-quan Zhang
언어
영어(ENG)
URL
https://www.earticle.net/Article/A299457
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4,000원
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초록
영어
Vanadium slags is a kind of vanadiferous solid waste from steelmaking process. It not only occupies land, pollutes environment, but also leads to waste of resources. Based on the difference of magnetic susceptibility of different particles caused by their chemical and physical properties from vanadium slag, a new technology, superconducting high gradient magnetic separation was investigated for separation and extraction of valuable substances from vanadium slag. The magnetic concentrate was obtained under optimal parameters, i.e., a particle size -200 mesh, a magnetic flux density of 0.8 T, a slurry concentration of 5 g/L, an amount of steel wools of 25 g and a slurry flow velocity of 2 L/min. The content of Fe2O3 in concentrate could be increased from 39.6% to 55.0% and V2O5 from 2.5% to 4.0%, respectively. The recovery rate is up to 42.9%, and the vanadium slag has been effectively reused.
목차
Abstract 1. INTRODUCTION 2. EXPERIMENTAL 2.1. The raw materials 2.2. The steel wools 2.3. Magnet’s primary structure 2.4. Ancillary equipment 2.5. Separation device 3. RESULTS AND DISCUSSION 3.1. Effect of the particle size 3.2. Effect of the magnetic flux density 3.3. Effect of the slurry concentration 3.4. Effect of the amount of steel wools filling 3.5. Effect of the slurry flow velocity 3.6. Comprehensive Condition Experiment 3.7. Discussion 4. CONCLUSIONS ACKNOWLEDGEMENTS REFERENCES
키워드
Vanadium slagsSuperconducting HGMSFerric oxideVanadic oxideExtraction and separation
저자
Sai He [ School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China ]
hang-qiaoYang [ School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China ]
Su-qin Li [ School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China ]
Corresponding author
Chang-quan Zhang [ School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China ]