摘要
对某低钛型钒钛磁铁矿进行深度还原-磨选分离试验,结果表明:还原温度1 050℃,还原时间10 h,是抑制钒还原的临界条件;使用添加剂和延长还原时间能够强化钒钛磁铁矿还原,其中硼砂能够有效促进钒钛磁铁矿还原,硼砂用量3%时,产物金属化率达98.21%,而Ca F2在本试验条件下对还原起到抑制作用,弱磁选并深度细磨有利于铁、钒分离。
Experimental research on deep reduction and grinding separation of a certain low Ti-bearing vanadium-titanium magnetite was conducted. The results show that the critical conditions for inhibiting the reduction of vanadium are reduction at 1 050 ℃ for 10 h. The reduction of vanadium-titanium magnetite can be enhanced by additives and extension of reduction time. Borax can efficiently promote the reduction of the vanadium-titanium magnetite, and the metallization rate of product reaches 98.21% with 3% borax added. However, inhibitory effects on reduction were observed with CaF2 in the experiments. Low intensity magnetic separation and deep grinding are beneficial to separate Fe and V.
出处
《钢铁钒钛》
CAS
北大核心
2016年第5期25-29,共5页
Iron Steel Vanadium Titanium
关键词
钒钛磁铁矿
深度还原
磁选分离
提钒
vanadium-titanium magnetite, deep reduction, magnetic separation, vanadium extraction