Nanometer sphere-like rare earth fluoride polishing powder and preparation method thereof

• Main Authors: YUE XIANGYUN, FAN WENJUN, DONG YUNFANG, WU YONGFU, ZHANG XUEFENG, WANG ZHENFENG, ZHANG SONGSONG, LIU ZHONGXING
• Format: Patent
• Language: Chinese; English
• Published: 11.11.2022
• Subjects: ADHESIVES; CHEMISTRY; COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS; DYES; INORGANIC CHEMISTRY; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; POLISHES; POLISHING COMPOSITIONS OTHER THAN FRENCH POLISH; SKI WAXES

The invention discloses nano sphere-like rare earth fluoride polishing powder and a preparation method thereof, and relates to the field of polishing powder.The preparation method comprises the steps that cerium lanthanum carbonate is treated to prepare cerium lanthanum carbonate turbid liquid; adding a dispersing agent and hydrofluoric acid, stirring and mixing, standing, aging and inducing, and carrying out suction filtration to obtain a solid product; drying the solid product, and grinding into powder; and roasting and dispersing by an airflow mill to obtain the nano sphere-like rare earth fluoride polishing powder. The prepared rare earth polishing powder is in a sphere-like shape, and the size distribution is 20-120nm. 本发明公开了一种纳米类球形氟化稀土抛光粉及其制备方法，涉及抛光粉领域，将碳酸镧铈经处理后配置碳酸镧铈悬浊液；接着添加分散剂和氢氟酸搅拌混合，之后静置陈化诱导、抽滤得到固体产物；再将固体产物烘干，之后研磨成粉末；再经焙烧、气流磨分散制得纳米类球形氟化稀土抛光粉；制备的稀土抛光粉形状为类球形，尺寸分布在20-120nm。