【摘要】 用农用碳酸氢铵作稀土沉淀剂 ,制得了易沉降、过滤的晶型碳酸钕 ,这种碳酸钕灼烧成氧化钕 ,各项质量指标均优于氧化钕产品国家标准。并对碳酸钕及其烧成的氧化钕分别进行了化学分析以及红外光谱、差热、热重分析、扫描电镜、X射线衍射分析 ,确定合成的碳酸钕组成为 Nd2 (CO3) 3· 2 .3H2 O,碳酸钕烧成的氧化钕 X射线衍射图与氧化钕的标准卡片一致更多还原

【Abstract】 A new process to produce neodymium carbonate using ammonia carbonate as precipitant has been studied.According to elemental analysis,TG-DTA,IR,SEM and X-ray diffraction,the composition of the neodymium carbonate were confirmed to be Nd 2(CO 3) 3·2 3H 2O.更多还原