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논문 기본 정보

자료유형
학술저널
저자정보
Kwon, H.W. (Department of Environmental Engineering, Andong National University) Kim, J.J. (Department of Earth and Environmental Sciences, Andong National University) Ha, D.W. (Korea Electrotechnology Research Institute) Choi, J.H. (Department of Environmental Engineering, Catholic University of Pusan) Kim, Young-Hun (Department of Environmental Engineering, Andong National University)
저널정보
한국초전도저온학회 한국초전도·저온공학회논문지 한국초전도·저온공학회논문지 제19권 제1호
발행연도
2017.1
수록면
22 - 25 (4page)

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Steel slag has been considered as an industrial waste. A huge amount of slag is produced as a byproduct and the steel slag usually has been dumped in a landfill site. However the steel slag contains valuable resources such as iron, copper, manganese, and magnesium. Superconducting magnetic separation has been applied on recovery of the valuable resources from the steel slag and this process also has intended to reduce the waste to be dumped. Cryo-cooled Nb-Ti superconducting magnet with 100 mm bore and 600 mm of height was used as the magnetic separator. The separating efficiency was evaluated in the function of magnetic field. A steel slag was ground and analyzed for the composition. Iron containing minerals were successfully concentrated from less iron containing portion. The separation efficiency was highly dependent on the particle size giving higher separating efficiency with finer particle. The magnetic field also effects on the separation ratio. Current study showed that an appropriate grinding of slag and magnetic separation lead to the recovery of metal resources from steel slag waste rather than dumping all of the volume.

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