无机盐工业
主管:中海油天津化工研究设计院有限公司
主办:中海油天津化工研究设计院有限公司
   中海油炼油化工科学研究院(北京)有限公司
   中国化工学会无机酸碱盐专业委员会
ISSN 1006-4990 CN 12-1069/TQ

无机盐工业 ›› 2025, Vol. 57 ›› Issue (6): 56-63.doi: 10.19964/j.issn.1006-4990.2024-0301

• 研究与开发 • 上一篇    下一篇

稀土抛光粉制备工艺优化及性能研究

贾培杰1,3,4(), 胡艳宏2,3,4, 柳召刚1,3,4(), 吴锦绣1,3,4, 段金胜1,3,4, 范君昌1,3,4, 李沂霖1,3,4   

  1. 1.内蒙古科技大学稀土产业学院,内蒙古 包头 014010
    2.内蒙古科技大学材料科学与工程学院,内蒙古 包头 014010
    3.内蒙古自治区稀土湿法冶金与轻稀土应用重点实验室,内蒙古 包头 014010
    4.轻稀土资源绿色提取与高效利用教育部重点实验室,内蒙古 包头 014010
  • 收稿日期:2024-05-29 出版日期:2025-06-10 发布日期:2024-07-16
  • 通讯作者: 柳召刚,教授,硕士生导师,研究方向为稀土湿法冶金及轻稀土应用;E-mail:liuzg65@163.com
  • 作者简介:贾培杰(1998— ),男,硕士研究生,研究方向为无机材料粉体制备研究;E-mail:2201829819@qq.com
  • 基金资助:
    北方稀土项目(BFXT-2022-D-0053);内蒙古自治区直属高校基本科研业务费资助

Study on preparation process optimization and properties of rare earth polishing powder

JIA Peijie1,3,4(), HU Yanhong2,3,4, LIU Zhaogang1,3,4(), WU Jinxiu1,3,4, DUAN Jinsheng1,3,4, FAN Junchang1,3,4, LI Yilin1,3,4   

  1. 1. School of Rare Earth Industry,Inner Mongolia University of Science and Technology,Baotou 014010,China
    2. School of Materials Science and Engineering,Inner Mongolia University of Science and Technology,Baotou 014010,China
    3. Key Laboratory of Rare Earth Hydrometallurgy and Light Rare Earth Application,Inner Mongolia Autonomous Region,Baotou 014010,China
    4. Key Laboratory of Green Extraction and Efficient Utilization of Light Rare Earth Resources,Ministry of Education,Baotou 014010,China
  • Received:2024-05-29 Published:2025-06-10 Online:2024-07-16

摘要:

为了研究制备工艺对稀土抛光粉抛光性能的影响,以氯化铈为铈源,碳酸氢铵为沉淀剂,采用并加法制备稀土抛光粉的前驱体。所制前驱体经过高温焙烧处理后可以得到最终的抛光粉产品。在研究过程中,对制备参数进行探究,其中包括稀土溶液浓度、滴加速率、搅拌速率、沉淀温度、聚乙二醇分散剂(PEG-1000)的使用量、陈化温度及陈化时间。经过系统的实验和分析,确定了最佳的制备条件:氯化稀土溶液质量浓度为225 g/L、滴加速率为2.5 mL/min、搅拌速率为500 r/min、沉淀温度为45 ℃、分散剂添加量为2%(质量分数)、陈化温度为45 ℃、陈化时间为4 h。在最佳条件下,制备得到的前驱体的粒度D50为1.229 μm,而最终抛光粉的粒度D50为1.087 μm。此外,抛光粉的均齐度R达到了1.85,抛蚀量也达到了0.473 2 mg/(cm2·min)。与传统生产抛光粉的方法相比,该方法省去了球磨或气流粉碎的工序,直接得到了符合客户需求的稀土抛光粉。该研究的制备工艺不仅提高了生产效率,还优化了产品的质量和性能,对于工业应用具有重要的实际意义和应用价值。

关键词: 稀土抛光粉, 制备工艺, 粒度, 抛光性能

Abstract:

In order to study the influence of the preparation process on the polishing performance of rare earth polishing powder,cerium chloride was used as the cerium source and ammonium bicarbonate was used as the precipitant to prepare the precursor of rare earth polishing powder by the parallel addition method.This precursor could get the final polishing powder product after high temperature roasting treatment.During the study,the preparation parameters were carefully explored,including the concentration of rare earth solution,adding rate,stirring rate,precipitation temperature,the amount of polyethylene glycol dispersant(PEG-1000) used,aging temperature and aging time.After systematic experiments and analyses,the optimal preparation conditions were determined:the concentration of the rare earth chloride solution was 225 g/L,the drop acceleration rate was 2.5 mL/min,the stirring rate was 500 r/min,the precipitation temperature was 45 ℃,the amount of dispersing agent was 2%,the aging temperature was 45 ℃,and the aging time was 4 h.Under the optimal conditions,the particle size D50 of the precursor was 1.229 μm,and the particle size D50 of the final polishing powder was 1.087 μm.In addition,the homogeneity R of the polishing powder reached 1.85,and the polishing etching amount reached 0.473 2 mg/(cm2·min).Compared with the traditional method of producing polishing powder,the present method eliminated the process of ball milling or air flow pulverization,and directly obtained the rare earth polishing powder that met the customer's demand.The preparation process of this research not only improved the production efficiency,but also optimized the quality and performance of the product,which was of great practical significance and application value for industrial applications.

Key words: rare earth polishing powder, preparation process, particle size, polishing performance

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