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Process mineralogy of scandium and europium-containing iron-making slag

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Abstract

During slow-cooling crystallization of iron-making blast-furnace slags, most rare earth elements recrystallize in an artificial “mineral” identified as calcium cerite. Scandium (Sc) and europium (Eu), however, concentrate in a sheetlike “mineral.” In this investigation, the mineralogy of this sheetlike “mineral” was studied. It was identified as being in the mica group and was called a rare earth-bearing barium fluorophlogopite. One of the objectives of this study was the recovery of this “mineral.” The study indicated that it can be effectively recovered from the slag by flotation using dodecylammonium acetate or a combination of dodecylammonium acetate and sodium oleate as collectors.

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Authors and Affiliations

  1. Mineral Industry Research Laboratory, University of Alaska, Fairbanks, AK, USA

    H. K. Lin (member SME, professor)

  2. Department of Chemical and Metallurgical Engineering, University of Nevada, Reno, NV, USA

    X. P. Zheng (member SME, graduate student)

Authors
  1. H. K. Lin
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  2. X. P. Zheng
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Additional information

SME preprint 96-93, SME Annual Meeting, March 11–14, 1996, Phoenix, AZ.

M&MP paper 96-615. Discussion of this peer-reviewed and approved paper is invited and must be submitted to SME prior to Aug. 31, 1997.

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Lin, H.K., Zheng, X.P. Process mineralogy of scandium and europium-containing iron-making slag. Mining, Metallurgy & Exploration 14, 18–20 (1997). https://doi.org/10.1007/BF03402754

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  • DOI: https://doi.org/10.1007/BF03402754

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