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Novel methods to extract vanadium from vanadium slag by liquid oxidation technology
Liu, H. B.; Liu, B. A.; Li, L. J.; Zheng, S. L.; Du, H.; Wang, S. N.; Chen, D. H.; Qi, J.; Zhang, Y.
2012
Conference NameInternational Conference on Chemical, Material and Metallurgical Engineering (ICCMME 2011)
Source PublicationADVANCES IN CHEMICAL ENGINEERING, PTS 1-3 Book Series: Advanced Materials Research
Pages1786-1793
Conference DateDEC 23-25, 2011
Conference PlaceBeihai, PEOPLES R CHINA
PublisherTrans Tech Publications Ltd
AbstractA series of new green metallurgical processes have been proposed and developed to improve the recovery of vanadium and chromium in vanadium slag, and solve the environmental problems occurred in the traditional production process. The reactivity of three reaction media including sub-molten potassium hydroxide, sub-molten sodium hydroxide, and NaOH-NaNO3 binary molten salt medium has been examined and compared. In comparison with the traditional sodium salt roasting technology, which operates at 850 degrees C, the operation temperature in the new media can drop to 200 similar to 450 degrees C, significantly decreasing the energy consumption. Chemical conversion ratio of vanadium and chromium using the new reaction media could reach to above 95% and 80%, respectively, superior to the traditional technology. For in the latter technology the data is 80% for vanadium and only 10% for chromium. Thus, the application of such reaction media in the processing of vanadium slag has been proven to be feasible and attractive, and the processes developed based on such media are expected to replace the traditional roasting process in the near future.
KeywordVanadium Slag Sub-molten Potassium Hydroxide Sub-molten Sodium Hydroxide Molten Sodium Hydroxide Oxidation Concentrated Koh Solution Cleaner Production Chromite Ore Steel Slag Titanium
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Indexed ByCPCI
Language英语
Document Type会议论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/11169
Collection研究所(批量导入)
Recommended Citation
GB/T 7714
Liu, H. B.,Liu, B. A.,Li, L. J.,et al. Novel methods to extract vanadium from vanadium slag by liquid oxidation technology[C]:Trans Tech Publications Ltd,2012:1786-1793.
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