Novel methods to extract vanadium from vanadium slag by liquid oxidation technology

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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
会议名称	International Conference on Chemical, Material and Metallurgical Engineering (ICCMME 2011)
会议日期	DEC 23-25, 2011
会议地点	Beihai, PEOPLES R CHINA
关键词	Vanadium slag Sub-molten potassium hydroxide Sub-molten sodium hydroxide Molten sodium hydroxide Oxidation CONCENTRATED KOH SOLUTION CLEANER PRODUCTION CHROMITE ORE STEEL SLAG TITANIUM
页码	1786-1793
中文摘要	A 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.
收录类别	CPCI
会议网址	://WOS:000308830101017
会议录	ADVANCES IN CHEMICAL ENGINEERING, PTS 1-3 Book Series: Advanced Materials Research
会议录出版者	Trans Tech Publications Ltd
语种	英语
内容类型	会议论文
源URL	[http://ir.ipe.ac.cn/handle/122111/11169]
专题	过程工程研究所_研究所（批量导入）
推荐引用方式 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]. 见:International Conference on Chemical, Material and Metallurgical Engineering (ICCMME 2011). Beihai, PEOPLES R CHINA. DEC 23-25, 2011.://WOS:000308830101017.