本文關鍵詞： 含F(xiàn)的La-Ce復合氧化物 制備 噴霧干燥 形貌 拋光性能　出處：《中國稀土學報》2017年01期 　論文類型：期刊論文

【摘要】：La,Ce是豐度最高的稀土元素,主要用于催化和拋光材料。研究了從稀土鹽到含F(xiàn)的La-Ce復合氧化物的制備過程,以及La/Ce比例、氟化過程、干燥過程及焙燒溫度等對制備的含氟鑭鈰復合氧化物結構、粒徑和形貌的影響。結果表明,用Na F 90℃氟化2 h,經(jīng)噴霧干燥,采用分段焙燒技術,最終經(jīng)850℃焙燒后可制備出顆粒分布均勻、團聚少、呈橢球形的含F(xiàn)的La-Ce鈰復合氧化物。制備的樣品用于旭硝子玻璃的研磨拋光,測得切削率0.115 mm/20 min,樣品合格率約為90%。
[Abstract]:LaCe is the most abundant rare earth element, which is mainly used for catalytic and polishing materials. The preparation process of La-Ce complex oxides from rare earth salts to F, La/Ce ratio and fluorination process were studied. The effects of drying process and calcination temperature on the structure, particle size and morphology of the prepared composite oxides of lanthanum and cerium fluoride were studied. Finally, after calcination at 850 鈩，

本文編號：1529221