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Development of novel magnetic filter for paramagnetic particles in high gradient magnetic separation

  • Nishijima, Shigehiro (Department of Applied Nuclear Technology, Fukui University of Technology) ;
  • Nomura, Naoki (Department of Applied Nuclear Technology, Fukui University of Technology)
  • Received : 2022.06.29
  • Accepted : 2022.09.15
  • Published : 2022.09.30

Abstract

We are conducting research and development of magnetic filters for magnetic separation targeting paramagnetic materials. In order to develop a new magnetic filter with a large magnetic gradient, stainless fiber (SUS430, 120 mm × 3 mm) with a triangular cross section was sintered with a high void ratio (~ 70%) and the magnetic filter (20 mm × 2 mm) was created. When this magnetic filter was used to perform magnetic separation of hematite (particle size 50 ㎛) under a maximum magnetic flux density of 1.49 T, high separation rates were obtained.

Keywords

Acknowledgement

This work is partly supported by "Advanced Low Carbon Technology Research and Development Program (ALCA)" of Japan Science and Technology Agency (JST) under Grand JPMJAL1304 This study is partly based on the research conducted by Takuma Sakano, a graduate student in our laboratory.

References

  1. K. Sekiya, H. Kuwahara,Y.Yoshida; S. Igarashi,N. Nomura, F. Mishima;Y.Akiyama and S. Nishijima, "Study on Decontamination of Contaminated Soils by Magnetic Separation" IEEE Trans. Appl. Supercond.,vol. 24, no. 3, pp. 1-5, June 2014.. https://doi.org/10.1109/TASC.2013.2283711
  2. K.Yukumatsu, N.Nomura, F.Mishima, Y.Akiyama, and S. Nishijima," Development of volume reduction method of cesium contaminated soil with magnetic separation," Progress in Superconductivity and Cryogenics Vol.18, No.1, (2016), pp.10~13. https://doi.org/10.9714/PSAC.2016.18.1.010
  3. M.Hiramatsu1, J Yamamoto1, Y. Akiyama1, F.Mishima , S. Nishijima, H.Okada , N.Hirota, T.Yamaji , H.Matsuura, S.Namba, T. Sekine, Y.Kobayashi and M Seto, "Removal of Scale from Feedwater in Thermal Power Plant by Magnetic Separation -Analysis of Oxygenated Treatment Scale," 2019 J. Phys.: Conf. Ser. 1293 012079. https://doi.org/10.1088/1742-6596/1293/1/012079
  4. K.Akiyama, T. Mori, T.Terai, Y.Akiyama, H.Okada, N.Hirota, T. Yamaji, H. Matsuura, S. Namba, T. Sekine, F. Mishima, S. Nishijima, "Removal of Iron Oxide Scale From Boiler Feed-Water in Thermal Power Plant by Magnetic Separation-Separation Conditions of Oxygenated Treatment Scale," IEEE Trans. Appl. Supercond, ,vol. 31, no. 5, pp. 1-4, Aug. 2021.
  5. S.Nishijima and S.Takeda, "Superconducting high gradient magnetic separation for purification of waste water from paper factory, IEEE Trans. Appl. Supercond., Vol.16, Issue: 2, June (2006) pp.1142 - 1145. https://doi.org/10.1109/TASC.2006.871346
  6. H.Zhang, Z.Zhao, X.Xu and L. Li, "Study on industrial wastewater treatment using superconducting magnetic separation," Cryogenics, Vol. 51, Issue 6, June 2011, pp. 225-228. https://doi.org/10.1016/j.cryogenics.2010.07.002
  7. F. Mishima, T. Terada, Y. Akiyama, S. Nishijima,"High Gradient Superconducting Magnetic Separation for Iron Removal form the Glass Polishing Wasete,"IEEE Trans. Appl. Supercond.,Vol, 21 Issue: 3, June (2011) pp. 2059- 2062. https://doi.org/10.1109/TASC.2010.2091100
  8. P.Boelens, Z.Lei, B.Drobot, M. Rudolph, Z.Li , M. Franzreb, K.Eckert and F.Lederer, "High-Gradient Magnetic Separation of Compact Fluorescent Lamp Phosphors: Elucidation of the Removal Dynamics in a Rotary Permanent Magnet Separator," Minerals 2021, 11, 1116.