摘要
采用FactSage计算、DSC-TG分析和SEM-EDS分析等方法对AOD直接合金化用钼精矿的挥发性进行了分析,同时对挥发后的钼精矿进行了EDS分析.结果表明:钼矿中钼的氧化物以MoO3的形式挥发,而MoO2的挥发速率较低,但在空气气氛中MoO2很容易被氧化为MoO3,同时,粒度对钼矿的挥发影响也较大,颗粒越大挥发越慢.熔渣在1318.39℃时液相量达到了98.33%,CaO与MoO3可生成CaMoO4,在有熔渣或CaO存在的条件下,熔渣或CaO能够有效的抑制钼氧化物的挥发.
The volatility of AOD direct alloying with molybdenum concentrate was analyzed using Fact Sage calculation,DSC-TG,SEMEDS and other methods,and an ESD analysis of molybdenum concentrate after volatilization was carried out. The results show that Molybdenum in molybdenum mineral volatiles as molybdenum trioxide,and molybdenum dioxide was oxidized to molybdenum trioxide in air atmosphere because the volatilization rate of molybdenum dioxide is lower. At the same time,the volatilization of molybdenum mineral could be affected greatly under the influence of particle size. The bigger the particle size,the lower the volatilization rateis. The amount of slag in liquid phase reached 98. 33% at 1318. 39℃; calcium oxide and molybdenum trioxide can generation calcium molybdate. At the existence of slag or calcium oxide,the volatilization of molybdenum oxide could be inhibited by slag or calcium oxide effectively.
出处
《内蒙古科技大学学报》
CAS
2016年第1期23-27,共5页
Journal of Inner Mongolia University of Science and Technology
基金
宝钢不锈钢有限公司技术服务项目(D14SYYB303)
关键词
钼精矿
挥发性
MOO3
CaMoO4
molybdenum concentrates
molybdenum trioxide
calcium molybdate
