411钪酸盐前躯体制备工艺的研究  

Study on Technics of Preparing of 411 Scandate Precursor

作　　者：沈春英[1] 朱敏杰[1] 卢平 丘泰[1] 

机构地区：[1]南京工业大学材料科学与工程学院,南京210009 [2]东台市科学技术局,江苏东台224200

出　　处：《有色金属（冶炼部分）》2010年第5期46-48,共3页Nonferrous Metals（Extractive Metallurgy)

摘　　要：以Ba(NO3)2、Ca(NO3)2、Al2(CO3)3为原料,添加3%Sc(NO3)3,采用液相共沉淀法制备了扩散型阴极用411钪酸盐前躯体。通过四因素三水平正交实验,研究了411钪酸盐前躯体的制备工艺。结果表明,液相共沉淀法制备411钪酸盐前躯体的最佳工艺:盐浓度0.4 mol/L,溶液pH=10,沉淀剂摩尔量为理论值的4倍。The 411 scandate precursor was prepeared by chemical liquid phase co-precipitations with Ba（NO3）2,Ca（NO3）2,Al2（CO3）3 as raw materials and doped with 3% Sc2O3.The optimal technics of the 411 scandate precursors was researched by chemical liquid phase co-precipitations with four factors and three levels orthogonal expriment.The results show,the optimal technics of 411 scandate precursors is that metal-ions solution concentration is 0.4mol·L-1,pH=10,and the molar quantity of precipitating agents is four times of the theoretical value.

关 键 词：钪酸盐 液相共沉淀法 前躯体 扩散型阴极 

分 类 号：TQ139.2[化学工程—无机化工]