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Preparing High-Purity Lithium Hydroxide Monohydrate by the Electrochemical Conversion of Highly Soluble Lithium Salts

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Abstract

A series of studies on the preparation and reproduction of a solution of lithium sulfate obtained from technical salts Li2CO3 and Li2SO4 ⋅ H2O has been performed for the electrochemical conversion of lithium sulfate to hydroxide. High-purity lithium hydroxide monohydrate has been shown to be prepared from conversion alkali, namely, a LiOH solution. These studies are the basis of a waste-free technology for producing high-purity lithium hydroxide monohydrate from technical salts of lithium carbonate and sulfate.

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REFERENCES

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Authors and Affiliations

  1. OOO Ekostar-Nautekh, Novosibirsk, 630075, Russia

    N. M. Nemkov, A. D. Ryabtsev, N. P. Kotsupalo, L. T. Menzheres, E. V. Mamylova & O. I. Chayukova

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  1. N. M. Nemkov
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  2. A. D. Ryabtsev
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  3. N. P. Kotsupalo
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  4. L. T. Menzheres
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  5. E. V. Mamylova
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  6. O. I. Chayukova
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Correspondence to N. M. Nemkov.

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Translated by V. Avdeeva

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Nemkov, N.M., Ryabtsev, A.D., Kotsupalo, N.P. et al. Preparing High-Purity Lithium Hydroxide Monohydrate by the Electrochemical Conversion of Highly Soluble Lithium Salts. Theor Found Chem Eng 54, 710–718 (2020). https://doi.org/10.1134/S0040579519050166

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  • DOI: https://doi.org/10.1134/S0040579519050166

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