Siberian Federal University (Russia):

Vlasov O. A., Professor, vlasovoa@yandex.ru

NTTs «EKMEN» (Russia):

Mechev V. V., Chief Adviser, Mechevv.v@km.ru

Interaction between vaporous sulfur and copper-nickel converter matte — product of matte processing stage with oxygen blow in converter, reducing its iron grade to 3–5 %, is considered. It is shown, that even in a short period of time (45 s) sulfur is taken up by converter matte by 70–85 %. Sulfur content increase not only improves converter matte flotation results — copper content in copper concentrate increases while nickel content in it decreases, and nickel content in nickel concentrate increases while copper content in it decreases, and, in addition to that, metal alloy content is considerably decreased, permitting to eliminate its separate processing stage. The optimal ratio between sulfur content in converter matte and quantity of metal alloy is determined. It is noted, that introduction of the proposed process decreases power inputs in subsequent processing stages. With that, part of sulfur, produced in processing of copper-nickel converter matte, may be brought into process. The extensive observational data, corroborating the described conclusions, are presented.

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2. Nechvoglod O. V. Razrabotka technologii elektroliza granulirovannogo medno-nikelevogo faynshteina. Avtoreferat dissertatsii... kandidata tekhnicheskikh nauk (Development of technology of granulated copper-nickel matte electrolysis. Author’s abstract of Candidate’s dissertation), Yekaterinburg, 2011, 23 p.

3. Pat. No. 2434065 Russian Federation.

4. Vydysh A. V., Yertseva L. N., Naftal M. N. et al. Tsvetnye Metally — Non-Ferrous Metals, 2005, No. 7, pp. 54–59.

5. Pat. No. 2400544 Russian Federation.

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7. Pat. No. 2281168 Russian Federation.

8. Pat No. 2003102302 Russian Federation.

9. Pat. No. 2370316 Russian Federation.

10. Vlasov O. A. Tsvetnaya Metallurgiya — Non-Ferrous Metallurgy, 1997, No. 2–3, pp. 19–20.

11. Vlasov O. A. Razrabotka kombinirovannykh metodov izvlecheniya tsvetnykh metallov iz rud i poluproduktov na osnove issledovaniya zakonomernostey sulfidirovaniya okislennykh i sulfidnykh produktov. Avtoreferat dissertatsii... doktora tekhnicheskikh nauk (Development of combined methods of non-ferrous metals recovery from ores and intermediates on the basis of the oxidized and sulphidic products sulfidizing regularities investigation. Author’s abstract of Doctor’s dissertation). Moscow, 2007, 40 p.

12. Inventor’s certificate 1452140 USSR.