Abstract：The dust generated during chlorination process in recovering titanium by metallurgical process was washed with water. Then, the residue left after water-washing was subjected to calcification roasting process, and the effects of roasting temperature and roasting time on the leaching rate of vanadium from the residue were studied. The results indicate that vanadium in the dust from chlorination process mainly exists as low-valent vanadium, and the vanadium leaching rate increases with the rising temperature. The vanadium leaching rate reaches 88% with the roasting temperature of 850 ℃. As the roasting time increases, the previously obtained different products undergo a secondary reaction, forming insoluble compounds of vanadium bronze, and also vanadate with different valences, which results in different vanadium leaching rates in Na2CO3 solution. It is concluded that the roasting process should be optimally at temperature of 850 ℃ with a roasting time of 120 minutes.
金春容, 贺永东, 赵亿坤, 孙小涵, 杜玉峰, 白万全, 陈守俊, 刘小龙. 钛冶金氯化收尘渣钒资源回收利用研究[J]. 矿冶工程, 2024, 44(1): 89-94.
JIN Chunrong, HE Yongdong, ZHAO Yikun, SUN Xiaohan, DU Yufeng, BAI Wanquan, CHEN Shoujun, LIU Xiaolong. Recovery and Utilization of Vanadium Resources in Dust from Chlorination Process for Recovering Titanium. Mining and Metallurgical Engineering, 2024, 44(1): 89-94.
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2024, Vol. 44 
