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Principles underlying new methods for the chemical treatment of complex iron and nickel ores

  • General and Inorganic Chemistry
  • Published:
Bulletin of the Academy of Sciences of the USSR, Division of chemical science Aims and scope

Summary

  1. 1.

    Metallic nickel freshly formed by reduction with hydrogen is almost completely dissolved during interaction with solutions of ferric chloride and mineral acids under the conditions investigated. Hence, before being leached with these solvents, iron-nickel oxide and oxide-silicate ores must be subjected to reduction with hydrogen or with technical or natural gases enriched as far as possible in hydrogen.

  2. 2.

    Ferric sulfate solutions of the compositions investigated interact considerably more intensively with nickel-magnesium and nickel-aluminum hydrosilicate minerals than solutions of ferric chloride and mineral acids; under suitable conditions they leach nickel from these minerals with an adequate degree of efficiency.

  3. 3.

    Nickel can be extracted almost completely from its various oxide-silicate minerals and ores by the proposed method of leaching with ferric sulfate solutions.

  4. 4.

    It was shown experimentally that it is possible to attain a high extraction of nickel from waste and lowgrade iron-nickel. oxide- silicate ores from various commercially worked deposits by the method of leaching with ferric sulfate solutions, which are readily obtained from recirculated: iron-containing sulfate lyes by very simple methods.

  5. 5.

    It was shown that our previously proposed method [2] of making simultaneous use of recirculated ironcontaining sulfate lyes and waste sulfurous gases for the preparation of the necessary sulfuric acid solutions substantially reduces the total consumption of acid in the sulfuric acid method of leaching oxide and oxide-silicate iron-nickel-cobalt ores.

  6. 6.

    It was shown that the methods investigated are of importance for control and analysis.

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Authors and Affiliations

  1. N. S. Kurnakov Institute of General and Inorganic Chemistry of the Academy of Sciences of the USSR, USSR

    G. G. Urazov & D. P. Bogatsky

Authors
  1. G. G. Urazov
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  2. D. P. Bogatsky
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Urazov, G.G., Bogatsky, D.P. Principles underlying new methods for the chemical treatment of complex iron and nickel ores. Russ Chem Bull 5, 1047–1054 (1956). https://doi.org/10.1007/BF01177355

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  • DOI: https://doi.org/10.1007/BF01177355

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