Journal of the Korean Crystal Growth and Crystal Technology (한국결정성장학회지)

The Korea Association of Crystal Growth (한국결정성장학회)
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Synthesis of nano Cerium(IV) oxide from recycled Ce precusor

재생 세륨 전구체로부터 나노산화세륨(IV)합성

  • 강태희 (한양대학교 화학공학과) ;
  • 구상만 (한양대학교 화학공학과) ;
  • 정충호 (한국세라믹기술원 이천분원 도자세라믹센터) ;
  • 황광택 (한국세라믹기술원 이천분원 도자세라믹센터) ;
  • 강우규 ((주)랜코)
  • Received : 2013.01.28
  • Accepted : 2013.03.08
  • Published : 2013.04.30
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Abstract

Cerium compounds such as Cerium hydroxide ($Ce(OH)_3$), Cerium chloride ($CeCl_3{\cdot}nH_2O$), Cerium carbonate hydrate ($Ce_2(CO_3)_3{\cdot}8H_2O$), Cerium oxide ($CeO_2$) were synthesized using recycled Ce precursor. Cerium(IV) oxide of nanoparticles were obtained by Ultra-sonication. Cerium-sodium- sulfate compound was synthesized through acid-leaching and addition of sodium sulfate from 99 wt% purity of Ce precursor as a starting material that was recycled from the waste polishing slurry. Moreover Cerium hydroxide was obtained from Cerium-sodium-sulfate compound by adding to sodium hydroxide solution. Then Cerium chloride was synthesized by adding of hydrochloric acid to Cerium hydroxide. Needle-shaped Cerium carbonate hydrate was synthesized in the continuous process and Cerium(IV) oxide with 30~40 nm size was subsequently obtained by the calcinations and dispersion.

재생 세륨 전구체로부터 수산화세륨($Ce(OH)_3$), 염화세륨($CeCl_3{\cdot}nH_2O$), 탄산세륨($Ce_2(CO_3)_3{\cdot}8H_2O$) 및 산화세륨($CeO_2$)을 합성하고 Ultra-sonication을 통해 나노입자의 산화세륨(IV)을 제조하였다. 폐 유리연마재로부터 정제한 약 99 wt% 재생 세륨 분말을 출발물질로 하여 황산침출과 황산나트륨의 첨가조건을 통해서 황산나트륨세륨 화합물($CeNa(SO_4)_2$)을 합성하였다. 또한 황산나트륨세륨 화합물과 수산화나트륨 수용액 첨가량 비의 조건을 달리하여 수산화세륨을 제조하였으며 염산의 첨가량에 따라 염화세륨을 합성하였다. 연속적인 합성공정으로 침상형의 탄산세륨을 합성한 후 하소와 분산을 통해서 평균 30~40 nm의 산화세륨(IV)을 합성하였다.

Keywords

References

  1. Z. Chen, "Global rare earth resources and scenarios of future rare earth industry", J. Rare. Earths 29(1) (2011) 1. https://doi.org/10.1016/S1002-0721(10)60401-2
  2. A. Jordens, Y.P. Cheng and K.E. Waters, "A review of the beneficiation of rare earth element bearing minerals", Minerals Eng. 41 (2013) 97. https://doi.org/10.1016/j.mineng.2012.10.017
  3. Y.S. Kim, "Application and extraction of rare earth metals", Bull. Kor. Inst. of Metals 2(3) (1989) 205.
  4. S.I. Moon, H.Y. Park and J.W. Seok, "The optical and structural properties by $ZrO_2$ and $Y_2O_3$ compositional ratio of Co- and Ce-doped cubic zirconia (YSZ) single crystals", J. Kor. Crytal Growth and Crystal Technology 22 (2012) 73. https://doi.org/10.6111/JKCGCT.2012.22.2.073
  5. K.N. Raymond, D.L. Wellman, C. Sgarlata and P.A. Hill, "Curvature of the lanthanide contraction: an explanation", Comptes Rendus Chimie 13 (2010) 849. https://doi.org/10.1016/j.crci.2010.03.034
  6. B.J. Kwon, H. Jung and J.Y. Kim, "Study on CMPO (Carbamoylphosphate) derivative functionalized ordered mesoporous silicates for selective removal of lanthanide", J. Kor. Crytal Growth and Crystal Technology 22 (2012) 291. https://doi.org/10.6111/JKCGCT.2012.22.6.291
  7. N.J. Lawrence, J.R. Brewer, L. Wang, T.S. Wu, J. Wells-Kingsbury, M.M. Ihrig, G. Wang, Y.L. Soo, W.N. Mei and C.L. Cheung, "Defect engineering in cubic cerium oxide nanostructures for catalytic oxidation", Nano Letter 11 (2011) 2666. https://doi.org/10.1021/nl200722z
  8. A. Trovarelli, C. Leitenburg, M. Boaro and G. Dolcetti, "The utilization of ceria in industrial catalysis", Catalysis Today 50 (1999) 353. https://doi.org/10.1016/S0920-5861(98)00515-X
  9. V. Innocenzi and F. Veglio, "Recovery of rare earths and base metals from spent nickel-metal hydride batteries by sequential sulphuric acid leaching and selective precipitations", J. Power Sources 211 (2012) 184. https://doi.org/10.1016/j.jpowsour.2012.03.064
  10. L.V. Resende and C.A. Morais, "Study of the recovery of rare earth elements from computer monitor scraps Leaching experiments", Miner. Eng. 23 (2010) 277. https://doi.org/10.1016/j.mineng.2009.12.012
  11. H.S. Yoon, C.J. Kim, S.D. Kim, J.Y. Lee, S.W. Cho and J.S. Kim, "Separation of rare earth and aluminium from the dried powder of waste cerium polishing slurry", J. Kor. Inst. Res. Rec. 12 (2003) 10.
  12. H.S. Yoon, J.Y. Lee, S.D. Kim, C.J. Kim and J.S. Kim, "Removal of ferrite for preparation of cerium chloride solution from cerium hydroxide", Theo. and Appli. of Chem. Eng. 7(2) (2001) 3467.
  13. S.D. Kim, "A study on the Preparation of Cerium Oxides from bastnasite", Kwang woon Univ. Chem. eng. (2000) 50.
  14. H.S. Yoon, W.S. Kim and S.S. Kim, "Technology development for the preparation of high grade cerium compound", Ministry of Commerce, Industry and Energy report (2002)28.
  15. S.D. Kim, C.J. Kim and H.S. Yoon, "Crystallization of cerium carbonate from cerium chloride solution", J. Kor. inst. Res. Recycling 17 (2008) 10.

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