纯铈稀土抛光粉中氟行为的研究  

Study on Behaviors of Fluorine in Pure Cerium Rare Earth Polishing Powder

作　　者：柳召刚[1] 张盼[1] 李梅[1] 胡艳宏[1] 王觅堂[1] 陶豹[1] 

机构地区：[1]内蒙古科技大学材料与冶金学院内蒙古自治区稀土现代冶金新技术与应用重点实验室,内蒙古包头014010

出　　处：《稀土》2014年第2期13-18,共6页Chinese Rare Earths

基　　金：国家杰出青年基金项目(51025416);教育部创新团队项目(IRT1065);内蒙古自然基金项目(2012MS0206);内蒙古自治区高等学校创新团队发展计划(NMGIRT1104)

摘　　要：进行了抛光粉前驱体的研究,并以碳酸铈为前驱体,采用氢氟酸氟化、高温煅烧、球磨机球磨的方法制备得到中位粒径较小的含氟纯铈稀土抛光粉(REO≥99%)。并对抛光粉进行了XRD、SEM、振实密度和松装密度实验、抛光实验等表征。结果表明:随着F掺入量的增加,抛光粉的振实密度和松装密度不断提高,抛蚀量在一定范围内也不断增加;对光学玻璃的抛光而言F掺入量为6%时出现最优值,对大理石装饰面而言取8%为宜;F的加入,首先出现CeF3,当到达一定的F含量以后开始出现CeF4;加F与未加F的CeO2经煅烧后形貌发生较大变化。Fluorine- containing and pure ceria- based rare earth polishing powder（ REO≥99%） with small median particle diameter was prepared with carbonate cerium as precursor by the processes including fluorination of hydrofluoric acid,high temperature calcinations,mechanical stirring and grinding. It was characterized by XRD,SEM,tap density,apparent density and polishing experiments. The results show that with the increase of fluorine content,the pure ceria- based rare earth polishing powder＇s tap and open density improved. Moreover,the polishing performance improved in some extent. The best content of fluorine was 6% for optical glass polishing and 8% for marble polishing. With the increase of fluorine content,CeF3is formed first and then CeF4was formed. The morphology of Ce-based polishing powders with fluorine is different from that without fluorine.

关 键 词：纯铈稀土抛光粉 氟化铈 氟含量 抛光 

分 类 号：O614.332[理学—无机化学]