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ArticleName Influence of roasting parameters of sulfide polymetallic concentrate on the quality of obtained cinder
ArticleAuthor Savinova Yu. A., Portov A. B., Tsemekhman L. Sh.

“Gipronickel Institute” LLC, Saint Petersburg, Russia:

Yu. A. Savinova, Junior Researcher
A. B. Portov, Researcher
L. Sh. Tsemekhman, Head of Laboratory of Pyrometallurgy, e-mail:


Three series of experiments, related to the oxidizing and sulphatizing roasting of sulfide polymetallic concentrates, were carried out in a laboratory fluidized bed furnace, within the development of economically viable technology of processing of rough bulk concentrate of polymetallic ore from Artemievskoe deposit. This article describes the results of the following researches:
— research of composition and structure of initial concentrate;
— research of roasting process products and samples of cakes from subsequent sulfuric acid leaching.
Research of samples of the foregoing materials was carried out with application of scanning electron microscopy and electron probe microanalysis. It was determined that in the first place, the substantial composition of obtained cinders depends on the temperature and atmosphere of process. At the same time, the roasting duration has no significant influence on the composition and structure of cinders. Besides, the method of material feeding into the furnace has the significant influence: with other conditions being equal, the distributed feeding provides more uniform and predictable oxidation of the material. During the research of the residues of cinders leaching, it was proved that spinels and relic sulphides are the basic insusceptible to processing components, containing non-ferrous metals. On the basis of obtained results, there were chosen the optimal roasting conditions, providing the minimal content of the mentioned components in the cinders. As a result, the achieved degree of non-ferrous metals extraction during the cinders leaching is near 94–96% (rel).

keywords Polymetallic concentrate, oxidizing roasting, cinders, cakes, substantial composition, sinters, spinels, scanning electron microscopy, electron probe microanalysis

1. Klushin D. N., Serebrennikova E. Ya., Besser A. D., Myzenkov F. A., Leyzerovich G. Ya., Zak M. S., Gordon G. M., Berlin Z. L. Kipyashchiy sloy v tsvetnoy metallurgii (Fluidized bed in non-ferrous metallurgy). Moscow : Metallurgiya, 1978. 280 p.
2. Izvestiya vuzov. Tsvetnaya metallurgiya — Russian Journal of Non-ferrous Metals. 1957. No. 7. pp. 29–31.
3. Runkel M., Sturm P. Pyrite roasting, an alternative to sulphur burning. The Journal of the Southern African Institute of Mining and Metallurgy. 2009. Vol. 109. pp. 491–496.
4. Martirosyan M. V., Grigoryan G. S., Grigoryan S. K. Zapiski Erevanskogo gosudarstvennogo universiteta — Proceedings of Erevan State University. 2010. No. 2. pp. 19–23.
5. Ferron C. J., De Cuyper J. The recovery of copper and zinc from a sulphide concentrate using sulfate roasting, acid leaching and solution purification. International Journal of Mineral Processing. 1992. Vol. 35, No. 3/4. pp. 225–238.
6. Shrenberg E. I., Burova I. A. Tsvetnye Metally — Non-ferrous metals. 1971. No. 8. pp. 4–9.
7. Bondarev M. S., Greyver T. N., Elesin A. I., Saveleva E. P. Tsvetnye Metally — Non-ferrous metals. 1990. No. 4. pp. 39–42.
8. Artemev N. I., Danilin L. A., Zaytsev N. G., Prikhodko E. A., Shurchkova V. A. Tsvetnye Metally – Non-ferrous metals. 1980. No. 1. pp. 50-52.
9. Snurnikov A. P. Gidrometallurgiya tsinka (Zinc hydrometallurgy). Moscow : Metallurgiya, 1981. 384 p.
10. Ertseva L. N. Tsvetnye Metally — Non-ferrous metals. 2011. No. 8/9. pp. 86–91.
11. Pestunova N. P., Ogienko A. S., Guzairov R. S. Tsvetnye Metally — Non-ferrous metals. 1980. No. 1. pp. 48–50.
12. Skopov G. V., Perepelitsin V. A. Izvestiya vuzov. Tsvetnaya metallurgiya — Russian Journal of Non-ferrous Metals. 1991. No. 4. pp. 31–37.
13. Thornhill P. G., Pidgeon L. M. Micrographic study of sulfide roasting. Journal of Metals. 1957. Vol. 9, No. 7. pp. 989–995.
14. Metsärinta L., Taskinen P., Nyberg J., Ohvo E. Tsvetnye Metally — Non-ferrous metals. 2005. No. 5. pp. 92–99.

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