【摘要】 以含钒生铁为原料,进行脱硅保钒处理,得到低硅含钒生铁,为下一步转炉提钒获得高品位钒渣奠定基础.本文利用MoSi₂炉和石墨坩埚以CO₂为氧化剂,研究了温度和CO₂气体流量等因素对含钒硅铁水中硅和钒含量的影响.结果表明:当温度在1 450℃左右、CO₂流量控制在1 L/min、一定强度的搅拌时,对脱硅保钒有利,脱硅率高达68.62%,而钒氧化率仅为0.73%.更多还原

【Abstract】 In order to removal of silicon and keeping vanadium,it is necessary to take hot metal containing vanadium as a raw material.Then the low silicon hot metal containing vanadium can be the foundation to obtain the high grade vanadium slag.An experiment was performed in a MoSi₂ electric furnace,graphite crucible was used to contain sample and CO₂ was used as an oxidant.Effects of CO₂ gas flow on silicon and vanadium contents in hot metal containing vanadium and silicon were determined.The results showed that at about 1 450℃ CO₂ gas flow is 1 L/min and through a stirring the desiliconization ratio can reach about 68.62%,while the oxidation ratio of vanadium is only0.73%.更多还原