Applying Electrothermal Reduction Method to the Preparation of V-Ti-Cr-Fe Alloys Serving as Hydrogen Storage Materials
WANG Bin1, ZHANG Lele1, DU Jinjing1, ZHANG Bo2, LIANG Lisi1, ZHU Jun1
1 School of Metallurgical Engineering, Xi’an University of Architecture and Technology, Xi’an 710055; 2 Zhengzhou Institute of Multipurpose Utilization of Mineral Resources, CAGS, Zhengzhou 450006
Abstract: The V-Ti-Cr-Fe alloys were prepared by electrothermal reduction method, and influences of CaO and Al-Ca alloy addition amounts and refining agent compositions on metals recovery rates and alloys compositions were investigated. The results showed that, when m(CaO)/m(Al) is 0.9, m(Al-Ca)/m(Al) is 0.5, the recovery rate of Ti can reach 66%, and the impurities content are lower, Al and O content can reach 3.66% and 0.75% respectively. The spray refining processes were carried out to reduce the impurities contents of Al and O in the prepared alloys. When the 90%(3CaF2-CaO)-10%V2O5 slag was used as refining agent, a good refining effect can be obtained. The Al and O content dropped to 1.23% and 0.59% respectively. SEM results also showed that the refining process can remove oxide inclusions effectively.
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2018, Vol. 32 
