超高纯稀土氟化钇的制备工艺
Preparation Process of Ultra-High Purity Rare Earth Yttrium Fluoride
摘要
Abstract
This paper conducts a systematic study on the preparation process of ultra-high-purity yttrium fluoride(YF3),with a focus on the pretreatment of raw materials and the screening of the optimal fluorinating agent.By altering parameters such as the ball milling time,rotational speed,and sintering temperature of Y2O3,and combining characterization methods including X-ray diffraction(XRD),thermogravimetric analysis(TGA),particle size testing,and Zeta potential measurement,the optimal pretreatment conditions were determined.The pretreated Y2O3 powder was subjected to fluorination with three fluorinating agents,namely NH4HF2,HF gas and KF.The properties of YF3 prepared using different fluorinating agents were systematically compared via various characterization methods,including XRD,X-ray photoelectron spectroscopy(XPS),TGA,particle size analysis,Zeta potential measurement,scanning electron microscopy(SEM),inductively coupled plasma-mass spectrometry(ICP-MS),and oxygen content determination.The results show that the YF3 prepared using HF gas as the fluorinating agent exhibits the optimal comprehensive performance,with a complete crystal structure and adequate fluorination degree.The mass fractions of Fe,Nd and Cr impurities are 0.0021％,0.0002％,and 6.65×10-6％,respectively,while the mass fraction of oxygen is only 0.0052％.Moreover,the particles are well-dispersed with no obvious agglomeration.This research not only achieves raw material conservation and cost reduction but also successfully prepares ultra-high-purity yttrium fluoride applicable to high-end technical fields,providing a research gramework for the preparation of ultra-high-purity YF3.关键词
超高纯稀土氟化钇/氟化物制备/杂质含量Key words
Ultra-high purity rare earth yttrium fluoride/Preparation of fluoride/Impurity content分类
化学化工引用本文复制引用
王新宇,于洋,田龙,曾繁明,SHELEG Valery-Konstantinovich,KRAVCHUK Marina-Anatolyevna,宋术岩,冯婧,张洪杰..超高纯稀土氟化钇的制备工艺[J].应用化学,2025,42(12):1608-1618,11.基金项目
中国科学院战略性先导科技专项(No.XDB1220000)、国家重点研发计划(No.2023YFB3507401)、中国北方工业集团公司激光器件技术重点实验室开放课题(No.KLLDT202313)、长春市科技发展计划项目(No.Z3GZZ09)、稀土新材料技术创新中心开放课题(No.G2025-K-26(33)-48(70))和联合项目(No.5EF0BC29)资助 Supported by the Strategic Priority Research Program of the Chinese Academy of Sciences(No.XDB1220000),the Financial Aid from the National Key Research and Development Program of China(No.2023YFB3507401),the Open Project of the Key Laboratory of Laser Device Technology of China North Industries Group Corporation Limited(No.KLLDT202313),the Changchun Science and Technology Development Plan Project(No.Z3GZZ09),the Open Topic Project of the Rare Earth Advanced Materials Technology Innovation Center(No.G2025-K-26(33)-48(70))and the Joint Project(No.5EF0BC29) （No.XDB1220000）
