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Sulfuric Acid Technology for Processing of Eudialyte Concentrate

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Abstract

Sulfuric acid decomposition of eudialyte was studied, and a technological process including two-stage treatment with sulfuric acid, separation and washing of an insoluble residue, successive hydrolytic precipitation of zirconium and iron-manganese concentrates from solution, and recovery of rare-earth elements from the insoluble residue by leaching, was considered. It was found that zirconium(IV) is recovered from a complex carbonate precipitate in the form of a basic sulfate.

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

    V. N. Lebedev

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  1. V. N. Lebedev
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Lebedev, V.N. Sulfuric Acid Technology for Processing of Eudialyte Concentrate. Russian Journal of Applied Chemistry 76, 1559–1563 (2003). https://doi.org/10.1023/B:RJAC.0000015712.10513.94

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  • DOI: https://doi.org/10.1023/B:RJAC.0000015712.10513.94

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