Petrov A. F., manager, Saverskaya T. P., process engineer, Grigorieva L. G., process engineer, Hyrometallurgy laboratory, «Institute «Norilskproject» OOO «Institute Gipronickel» Norilsk affiliate; Naftal M. N., deputy head of department for industrial projects of Mining metallurgical directorate, Transpolar affiliate of the «Norilsky Nickel» Ore mining and smelting integrated works

1. Khramtsova I. N., Gogotina V. V., Baskaev P. M., et al. // Non-ferrous Metals (Russian). 2007. No. 7. P. 32–37.
2. Naftal M. N., Shur M. B., Vydysh A. V., et al. // Ibid. P. 60–67.
3. Naftal M. N., Shur M. B., Asanova I. I., et al. // Ibid. 2005. No. 10. P. 81–90.
4. Naftal M. N., Shestakova R. D. // Ibid. 2001. No. 6. P. 43–48.
5. Naftal M. N., Vydysh A. V., Timoshenko E. M. et al. // Ibid. 2007. No. 7. P. 53–60.
6. Burkova I. I., Oruzheinikov A. I., Saverskaya T. P., Grigorieva L. G. // Ibid. 1998. No. 10–11. P. 57–61.
7. Sobol S. I., Frash T. M. // Ibid. 1974. No. 2. P. 14–21.
8. Frash T. M. Study and development of oxidizing leaching process for pyrrhotite concentrates with sulfurous anhydride : dissert. for degree of cand. sc. (techn.). — M. : Gintsvetmet, 1980. – 280 p.
9. Timoshenko E. M. Development of improved process for autoclave processing of pyrrhotite concentrates : dissert. for degree of cand. sc. (techn.). — M. : Gintsvetmet, 2001. — 169 p.