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Supervisor：Jiangxi University Of Science And Technology
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Jiangxi Nonferrous Metals Society
ISSN：1674-9669
CN：36-1311/TF
CODEN YJKYA9
Volume 6 Issue 3
Jun.  2015
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LIU Yuhui, YU Rongmin, OUYANG Yuping, SU Zhengfu, SHAO Chunxin, WANG Zhijian, LIU Jibo. Preparation of size controllable yttrium oxide powder[J]. Nonferrous Metals Science and Engineering, 2015, 6(3): 22-25. DOI: 10.13264/j.cnki.ysjskx.2015.03.004
Citation: LIU Yuhui, YU Rongmin, OUYANG Yuping, SU Zhengfu, SHAO Chunxin, WANG Zhijian, LIU Jibo. Preparation of size controllable yttrium oxide powder[J]. Nonferrous Metals Science and Engineering, 2015, 6(3): 22-25. DOI: 10.13264/j.cnki.ysjskx.2015.03.004
shu

Preparation of size controllable yttrium oxide powder

  • 1.

    Hunan Rare Earth Metal Research Institute, Changsha 410126, China

  • 2.

    Huan Rare Earth New Energy Materials Co. Ltd., Changsha 410126, China

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  • Received Date: December 03, 2014
  • Published Date: June 29, 2015
    Graphical Abstract
    • Abstract
  • Yttrium oxide powder was prepared by ammonia-oxalic acid two steps method. The cental particle size (D50) was controlled to be 1.00~2.00 μm with good dispersibility. The effects of precipitant concentration, material concentration, reaction temperature, feeding rate and pH on the medium particle size of yttrium oxide powder were studied. Laser particle analyzer, BET instrument and scanning electron microscope were used to analyze the particle size and specific surface area of yttrium oxide powder. The results show that when the concentration of ammonium hydroxide is 1.0 mol/L, the mass concentration of oxalic acid is 10 %, the dropping speed is 20 mL/min, the temperature of oxalic acid solution is 80 ℃, the pH of the solution precipitated by ammonium hydroxide is 7~8 and the pH of the solution precipitated by oxalic acid is below 1, the central particle size (D50) and specificsurface area of the prepared yttrium oxide powder are controlled to be 1.00~2.00 μm and 3.2~13.3 m2/g by adjusting the concentration of yttrium nitrate in the range of 0.4~0.8 mol/L.
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    • References (24)
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