中國有色金屬學(xué)報(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 22 No. 6 June 2012 |
（1. School of Materials and Metallurgy, Northeastern University, Shenyang 110819, China;
2. Ningxia Orient Nonferrous Metals Group Co. Ltd., Shizuishan 753000, China）
Abstract:V-Ti-Fe master alloys were prepared by metallothermic reduction method, and the influences of the mass ratio of V2O5 to TiO2, Al and Al-Mg alloy addition amounts on the metal recovery rates and alloy compositions were investigated. The results show that appropriate technological parameters are: the mass ratio of V2O5 to TiO2 is 0.5:1, Al addition represents 95% of the theoretical value, and the Al-Mg alloy addition amount is one third that of the Al addition. The results from energy spectrum analysis show that V and Fe distribute uniformly in the prepared alloy, while the segregation for Ti, i.e. Ti-rich phase is detected. A spray refining process was carried out to reduce the impurity contents of Al and O in the prepared alloys. The Al content drops from 4.27% to 1.86%, and the O content drops from 2.10% to 0.91% after the refining process.
Key words: V-Ti-Fe master alloys; metallothermic reduction method; recovery rates; refining process
