本文论述了钒渣氧化钠化焙烧过程中磁性物的变化规律。焙烧中各反应带内磁性物含量随反应温度和停留时间的变化,有着不同的规律;磁性物结构组成也随温度而变化;浸出渣残钒量与磁性物含量呈正相关关系;温度的影响比时间更显著。初步找出了降低碱浸出渣残钒量的理论依据及相应措施。 This article discusses the variation of magnetic matter during the calcination of vanadium slag and sodium oxide. The content of magnetic substance in each reaction zone varies with reaction temperature and residence time, and has different laws. The composition of magnetic substance also changes with the temperature. The residual vanadium content of leaching residue has a positive correlation with the content of magnetic substance. The influence ratio of temperature Time is more significant. The preliminary theoretical basis and corresponding measures to reduce the residual vanadium content of alkali leaching residue were found.