流化床沉淀优质粗粒重铀酸盐的工业应用  

Precipitation of High-quality Coarse Diuranate by Fluidized Bed

作　　者：陈志洪[1] 刘凤山[1] 郑剑平[1] 简沛生 马德彪[1] 张建敏[1] 施建明[1] 

机构地区：[1]核工业北京化工冶金研究院,北京101149

出　　处：《湿法冶金》2000年第3期1-8,共8页Hydrometallurgy of China

摘　　要：介绍了流化床沉淀塔在沉淀优质粗粒重铀酸盐工业生产中的应用结果。生产结果表明 ,以流化床沉淀法沉淀出的重铀酸盐产品 w(U)在 6 0 %以上 ,w(H2 O)在 31%～ 5 3%之间 ,杂质的质量分数符合部颁标准。与常规搅拌沉淀法相比 ,流化床沉淀法的产品质量好 ,设备基建投资少 ,而且劳动强度低 ,生产环境好 ,具有明显的经济效益和社会效益。Settling column of fluidized bed and its applications in precipitation of high quality coarse diuranate are described.The results show that, in the diuranate precipitated by fluidized bed, w (U) is over 60%, w (H 2O) is 35%～58% and mass fractions of impurities are coincided with the standards issued by CNNC.The method has many advantages over conventional agitation in product quality,equipments investment and capital cost,working conditions and environmental protection.

关 键 词：流化床 沉淀塔 沉淀 重铀酸盐 

分 类 号：TF351.5[冶金工程—冶金机械及自动化]