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Extraction of nickel from sulfurous digestion solutions of oxide-type nickel ores by mixtures of monocarboxylic acids and Lix 54

  • Chemical and Metallurgical Processes of Crude Ore and Athropogenic and Secondary Raw Materials Integrated Processing
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Abstract

The extraction of nickel from sulfurous solutions by various mixtures of monocarboxylic acids with β-diketone (Lix 54, 1-phenyl-1,3-decadione) in the presence of magnesium and calcium is reported. The extraction of nickel by the complex agents was proven to proceed more effectively than in the case of individual agents, which stipulated the formation of mixed complexes of nickel in the organic phase. The use of mixtures of various monocarboxylic acids (HR) with Lix 54 (HA) (molar ratio HR: HA = 1: 1−0.5) led to a substantial increase of the coefficients of nickel separation with the main contaminants (Ca and Mg). Using the mixtures of HR and HA, a technological scheme for the extractive isolation of nickel from a sulfurous solution with a high content of calcium (0.5−0.55 g/l) and magnesium (≥7 g/l) was developed. The resulting nickel concentrate was applicable for isolation by means of electrolysis or the preparation of nickel sulfate. The extraction degree was achieved at a level not less than 99.7%.

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Authors and Affiliations

  1. Institute of Chemistry and Chemical Technology, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russia

    G. L. Pashkov, I. Yu. Fleitlikh, N. A. Grigor’eva & L. K. Nikiforova

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  1. G. L. Pashkov
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  2. I. Yu. Fleitlikh
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  3. N. A. Grigor’eva
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  4. L. K. Nikiforova
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Original Russian Text © G.L. Pashkov, I.Yu. Fleitlikh, N.A. Grigor’eva, L.K. Nikiforova, 2009, published in Khimicheskaya Tekhnologiya, 2008, Vol. 9, No. 9, pp. 442–447.

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Pashkov, G.L., Fleitlikh, I.Y., Grigor’eva, N.A. et al. Extraction of nickel from sulfurous digestion solutions of oxide-type nickel ores by mixtures of monocarboxylic acids and Lix 54. Theor Found Chem Eng 43, 810–815 (2009). https://doi.org/10.1134/S0040579509050340

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  • DOI: https://doi.org/10.1134/S0040579509050340

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