提锂铷冶金尾渣制备硅肥试验研究

摘要

Silicate fertilizer preparation by leaching residues of Li-Rb bearing ore was investigated.The results show that:alkali baking preocess is feasible.The optimized parameters of silicon fertilizer were as follows:alkali ratio of 10％,calcination temperature of 850 ～ 950 ℃,calcination time of 60 ～ 90min.Synthetic silicate fertilizer could meet the indicators of national standard silicon fertilizer (NY / T 797-2004).Comprehensive utilization of Lithium-rubidium bearing resources would be improved.%为提锂铷冶金尾渣制备硅肥试验研究表明:提锂铷尾渣采用配碱高温改性制备硅肥,有效硅活化效果良好.提锂铷尾渣制备硅肥优化的硅肥改性参数为:碱配比10％,焙烧温度850～950℃,焙烧时间60～90min,改性硅肥有效硅可达20％以上.合成浸渣硅肥满足国家标准硅肥(NY/T 797-2004)的各项指标要求.锂铷矿石资源有望实现全相回收.