Abstract: The reaction of reduction of Mo0₃ with different adding method by 500 g Fe-1. 80% 〜3. 50% [ C ] melts with nitrogen protective atmosphere at 1 300 ~ 1 500 °C has been studied. Results show that at W 1 400 °C with free slag condition, the reduction rate of Mo0₃ by feeding MoO₃ powder is faster than that by adding Mo0₃ pellet, and the [C] in melt is main factor to reduce MoO₃, as the [C] in melt is about 2% , then yield of molybdenum is up to 96% ； with slag condition, the effect of temperature of melts on reduction reaction of Mo0₃ is larger, with increasing temperature, the reduction rate of Mo0₃ increases, and the yield of molybdenum in 1.80% [C] melt is up to 100% at 1 500 °C. As the steel bearing Mo is melted by converter, to feed powder MoO₃ in hot metal, then form the slag with nice flowability is available to fast reduce MoO₃ and increase yield of Mo.

Key words: Fe-C Melts,  , MoO₃,  , Reduction

摘要： 研究了氮气保护500 g Fe-1.80%～3.50%[C]熔体在1300～1500℃时对不同方法加料MoO₃的还原反应。结果表明,≤1 400℃,无渣条件下,粉状MoO₃还原速度较球团状MoO3快,熔体[C]是影响MoO₃还原的主要因素,当[C]约为2%时,钼收得率可达96%;在有渣条件下,熔体温度对MoO₃还原反应的影响较大,温度升高,MoO₃的还原速度提高,1500℃时1.80%[C]熔体的钼收得率达100%。转炉冶炼含钼钢时,宜采取合适措施向铁水中加入粉状MoO₃后随即造流动性良好的渣,以利快速还原MoO₃,提高Mo的收得率。

关键词: Fe-C熔体, MoO_3,  , 还原