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Название On the prospects of using a modified sulfidizer in the processing of oxidized copper ores
DOI 10.17580/or.2020.03.07
Автор Katkeeva G. L., Burkitseterkyzy G., Oskembekov I. M., Zhunusov E. M.
Информация об авторе

Zh. Abishev Chemical-Metallurgical Institute (Karaganda, Kazakhstan):

Katkeeva G. L., Leading Researcher, Candidate of Engineering Sciences, Associate Professor, katkeeva@mail.ru
Burkitseterkyzy G., Junior Researcher
Oskembekov I. M., Senior Researcher
Zhunusov E. M., Technician


In order to improve the efficiency of sulfidization methods for oxidized ores, the problem of reducing the energy intensity of the process must be solved. In this regard, a promising method is the sulfidization of oxidized copper ores using a modified reagent that allows the process to be conducted without heating or any separate equipment. The modified sulfidizing agent designed to improve the efficiency of flotation concentration is produced by the mixing of sodium polysulfide and ammonium sulfate solutions. Comparative flotation experiments were conducted using pre-sulfidized oxidized copper ore containing 1.2 % of total copper, of which 1.08 % (or 90 %) was oxidized copper. The possibility of carrying out the sulfidization process in a flotation cell without forced heating of the reaction mixture has been established. At the same time, the modified reagent exceeds sodium polysulfide in terms of its flotation efficiency by 5 %. The chemical analysis of the processing products for the content of oxidized copper has demonstrated that its mass fraction decreased from 1.08 to 0.63 %. The experimental design method has been used to establish the best application conditions for the modified reagent. These are: the reagent consumption of 2.6 kg/t; slurry agitation with the sulfidizing agent for four minutes; and the collector (potassium butyl xanthate) consumption for the flotation process of 500 g/t. The copper recovery was 69.85 %. A mathematical model was designed for the flotation process with preliminary sulfidization of the oxidized copper ore in the form of a generalized miltifactorial equation.
The work was performed with the grant support of the Ministry of Education and Science of the Republic of Kazakhstan (grant No. AP05130143).

Ключевые слова Оxidized copper ore, modified reagent, sulfidization, thermodynamic analysis, Gibbs energy, flotation, concentrate
Библиографический список

1. Bekturganov N. S. Technological and environmental aspects of complex processing of refractory mineral and manmade raw materials in Kazakhstan. Plaksin Readings–2014: proceedings of the international meeting. Almaty, 16–19 September 2014. pp. 9–12.
2. Gorlova O. E., Shadrunova I. V., Sinyanskaya O. M. Development of a combined technology for nonacid flotationhydrometallurgical processing of noneconomic copper ore stock piles. Gorny Informatsionno-analiticheskiy Byulleten'. 2018. No. 12. pp. 157–167.
3. Zayganov V. G. Increasing the mineral resources of copper due to the development of technologies for extracting oxidized metal varieties. Gorny Zhurnal Kazakhstana. 2010. No. 2. pp. 14–19.
4. Briggs D. Recovery of copper by solution mining methods. Arizona Geological Survey contributed report CR-115-A. 2015. 10 p.
5. Bhambhani T., Nagaraj D. R., Yavuzkan O. Improving flotation recovery of oxide copper minerals. IMPC XXVIII, Quebec, September 11–15, 2016. Paper 469. 13 p.
6. Shean B. J., Cilliers J. J. A review of froth flotation control. International Journal of Mineral Processing. 2011. Vol. 100. pp. 57–71.
7. Seredkin M., Zabolotsky A., Jeffress G. In-situ recovery, an alternative to conventional methods of mining: exploration, resource estimation, environmental issues, project evaluation and economics. Ore Geology Reviews. 2016. Vol. 79. pp. 500–514.
8. Sinclair L., Thompson J. In-situ leaching of copper: challenges and future prospects. Hydrometallurgy. 2015. Vol. 157. pp. 306–324.
9. Babich I. N., Adamov E. V., Panin V. V. The effect of pulp alkalinity on the selective flotation of sulfide and oxidized copper minerals from the ore of the Udokan deposit. Izvestiya VUZov. Tsvetnaya Metallurgiya. 2007. No. 4. pp. 21–24.
10. Lapshin D. A., Prostakishin M. F., Zolotarev V. N., Khramtsova I. N. Development of technology of Udokan deposit ores processing. Part 1. Laboratory researches of definition of basic engineering solutions. Tsvetnye Metally. 2014. No. 8. pp. 14–19.
11. Lapshin D. A., Prostakishin M. F. Development of technology of processing of Udokan copper deposit ores. Part 2. Peculiarities of ore technological properties. Tsvetnye Metally. 2015. No. 2. pp. 14–19.
12. Senchenko A. E., Kulikov Yu. V., Aksenov A. V. Process characteristics of Udokan copper deposit ores, defining the efficient processing flowsheet and prospective ways of the process improvement. Tsvetnye Metally. 2017. No. 10. pp. 14–17. DOI: 10.17580/tsm.2017.10.04.
13. Grau R., Saari J., Maksimov I. I., Egorova V. G., Kuznetsova I. А. The Udokan deposit copper ores processing technology development studies. Obogashchenie Rud. 2018. No. 1. pp. 21–26. DOI: 10.17580/or.2018.01.04.
14. Khalezov B. D. Problems of Udokansky field ores processing. Gorny Informatsionno-analiticheskiy Byulleten'. 2014. No. 4. pp. 103–108.
15. Denisov M. E., Rudnev B. P., Krylova L. N., Kuchmina Yu. S. The processing technology of copper ore of the Udokan deposit with preliminary sulfuric acid leaching. Tsvetnaya Metallurgiya. 2014. No. 3. pp. 100–104.
16. Tusupbayev N. K., Kaldybayeva Zh. A., Semushkina L. V., Narbekova S. M. Possibility of using composite reagents in Zhezkazgan copper ore flotation. Obogashchenie Rud. 2017. No. 3. pp. 36–40. DOI: 10.17580/or.2017.03.06.
17. Katkeeva G. L., Bekturganov N. S., Sagindykova Z. B., Shinbaeva U. B. Study of the effect of electrochemical treatment on the sulfidization and flotation of oxidized copper minerals. Obogashchenie Rud. 2004. No. 5. pp. 20–22.
18. Bekturganov N. S., Katkeeva G. L., Oskembekov I. M., Akubaeva M. A. Sulfidization application during the processing of oxidized copper ores of Udokan deposit. Tsvetnye Metally. 2016. No. 9. pp. 22–27. DOI: 10.17580/tsm.2016.09.02.
19. Katkeeva G. L., Oskembekov I. M., Gizatullina D. R., Turebekova K. S., Burkitseterkyzy G., Zhunusov E. M., Zhunusov А. М. On the possibility of flotation of oxidized copper ore with preliminary sulfidization with a modified sulfidizer. Plaksin Readings–2018: proceedings of the international symposium. Moscow, 2018. pp. 61–65.
20. Malyshev V. P. Probabilistic determined experiment planning. Alma-Ata: Nauka, 1981. 116 p.

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