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Activation of leaching of rare earth elements from phosphohemihydrate

  • Inorganic Synthesis and Industrial Inorganic Chemistry
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Abstract

Treatment of fresh phosphohemihydrate obtained in processing the Khibiny apatite concentrate by hemihydrate sulfuric acid method was suggested by solutions containing alkali metal fluorides. It was shown that such treatment reduces the transit time of low-hydrated rare earth elements phosphates contained therein, which are poorly soluble in mineral acids, into the acid form from 2 months to 4–8 h.

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Authors and Affiliations

  1. Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Resources, Kola Scientific Center, Russian Academy of Sciences, Apatity, Murmansk oblast, Russia

    E. P. Lokshin & O. A. Tareeva

Authors
  1. E. P. Lokshin
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  2. O. A. Tareeva
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Correspondence to E. P. Lokshin.

Additional information

Original Russian Text © E.P. Lokshin, O.A. Tareeva, 2013, published in Zhurnal Prikladnoi Khimii, 2013, Vol. 86, No. 11, pp. 1686–1690.

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Lokshin, E.P., Tareeva, O.A. Activation of leaching of rare earth elements from phosphohemihydrate. Russ J Appl Chem 86, 1638–1642 (2013). https://doi.org/10.1134/S1070427213110025

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  • DOI: https://doi.org/10.1134/S1070427213110025

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