Журналы →  Gornyi Zhurnal →  2019 →  №12 →  Назад

Название New compositions of agents for fine gold recovery from tailings
DOI 10.17580/gzh.2019.12.10
Автор Matveeva T. N., Chanturia V. A., Gromova N. K., Lantsova L. B.
Информация об авторе

Melnikov Research Institute for Comprehensive Exploitation of Mineral Resources, Russian Academy of Sciences, Moscow, Russia:

T. N. Matveeva, Head of Department, Doctor of Engineering Sciences, tmatveyeva@mail.ru
V. A. Chanturia, Chief Researcher, Academician of the Russian Academy of Sciences
N. K. Gromova, Researcher
L. B. Lantsova, Researcher


The article presents the experimental research results on development and testing of reagent regimes for fine gold recovery from tailings using new complexing collectors from the class of dithiocarbamates—modified diethyldithiocarbamate (DEDTCm) and dibutyldithiocarbamate (DBDTC). The currentness of new efficient domestic-manufacture agents consists if the feasibility of more complete recovery of gold and other noble metals at their reduced loss with tailings. The theoretical framework for the development of new reagent regimes for Au recovery from flotation tailings is high activity of dithiocarbamates relative to noble metals, with formation of stable compounds on the surface of Au-containing sulfide minerals—pyrite, arsenopyrite, chalcopyrite, as well as with generation of strong hydrophobic coating ensuring transition of these minerals to concentrate. The physicochemical effect of the flotation agents on micro- and nano-gold on the surface of sulfides is studied using original procedures of complexing of minerals containing invisible or submicron Au. The experimental tests of interaction between DEDTCm, DBDTC and the surface of Au-containing sulfide minerals using UV spectrophotometry, analytical scanning electron microscopy (LEO 1420VP INCA Oxford 350), laser microscopy (KEYENCE VK-9700) and X-ray phase analysis determined selective adsorption of DEDTCm and DBDTC components at micro- and nano-particles of Au. New data are obtained for the scientific validation of expediency of using complexing dithiocarbamate collectors for recovery of fine Au from flotation tailings of polymetal ores. The laboratory experiments with technological samples of polymetal ore flotation tailings find that application of DEDTCm and DBDTC raises the content of gold in concentrate by 2.5% at the increased recovery by 4.5%.
The study was supported by the Presidium of the Russian Academy of Sciences, Program No. 15.
The authors express their thanks to Candidates of Geologo-Mineralogical Sciences E. V. Koporulina and V. A. Minaev for the assistance in the experiments with scanning electron and laser microscopes.

Ключевые слова Polymetal ore flotation tailings, flotation, collecting agents, modified diethyldithiocarbamate, dibutyldithiocarbamate, gold recovery
Библиографический список

1. Chanturia V. A. Scientific substantiation and development of innovative approaches to integrated mineral processing. Gornyi Zhurnal. 2017. No. 11. pp. 7–13. DOI: 10.17580/gzh.2017.11.01
2. Sedelnikova G. V. Practice of gold extraction from refractory ores. Zolotodobyvayushchaya promyshlennost. 2014. No. 5(65). pp. 14–19.
3. Bocharov V. A., Ignatkina V. A., Abryutin D. V. Technology for processing gold-bearing raw materials : Teaching aid. Moscow : NITU MISiS, 2011. 328 p.
4. Solozhenkin P. M. Further considerations on the selection of reagents for the flotation of antimony and bismuth. Doklady Akademii nauk. 2016. Vol. 466, No. 5. pp. 559–562.

5. Matveeva T. N., Gromova N. K., Ivanova T. A., Chanturia V. A. Physicochemical effect of modified diethyldithiocarbamate on the surface of auriferous sulfide minerals in noble metal ore flotation. Journal of Mining Science. 2013. Vol. 49, Iss. 5. pp. 803–810.
6. Matveeva T. N., Ivanova T. A., Getman V. V., Gromova N. K. New flotation agents for recovery of microand nanoparticles of precious metals from rebellious ore. Gornyi Zhurnal. 2017. No. 11. pp. 89–93. DOI: 10.17580/gzh.2017.11.16
7. Getman V. V., Gapchich A. O. Study of diisobutyldithiophosphenate interaction with sulfide surface containing emulsiondisseminated gold. Obogashchenie Rud. 2013. No. 6. pp. 18–21.
8. Мatveeva T. N., Gromova N. K., Minaev V. A., Lantsova L. B. Sulfide minerals and cassiterite surface modification by stable metal – dibutyldithiocarbamate complexes. Obogashchenie Rud. 2017. No. 5. pp. 15–20. DOI: 10.17580/or.2017.05.03
9. Meretukov M. A. Natural nanodimensional gold particles. Tsvetnye metally. 2006. No. 2. pp. 36–41.
10. Bancroft G. M., Jean G. Gold deposition at low temperature on sulphide minerals. Nature. 1982. Vol. 298, No. 5876. pp. 730–731.
11. Tauson V. L., Ovchinnikova O. I., Bessarabova O. I., Smagunov N. V., Pastushkova T. M. Distribution of gold deposited under reducing adsorption from HAuCl4 solution of magnetite, sphalerite, and galenite crystals. Russian Geology and Geophysics. 2000. Vol. 41, No. 10. pp. 1427–1430.
12. Byrko V. M. Dithiocarbamates. Moscow : Nauka, 1984. 342 p.
13. Bala Ramesh P., Venkatesh P., Abdul Jabbar A. Influence of Dithiocarbamate On Metal Complex and Thin Film Depositions. International Journal of Innovative Research in Science, Engineering and Technology. 2014. Vol. 3, Iss. 8. pp. 15301–15309.
14. Xing Shi, Jue Zhang, Xiaohai Yang, Wei Liu, Li Li et al. Metallurgical leaching of metal powder for facile and generalized synthesis of metal sulfide nanocrystals. Colloids and Surfaces A: Physicochemical and Engineering Aspects. 2016. Vol. 497. pp. 344–351.
15. Priyanka Dhar, Thornhill M., Hanumantha Rao Kota. Investigation of Copper Recovery from a New Copper Deposit (Nussir) in Northern-Norway: Thionocarbamates and Xanthate-Thionocarbamate Blend as Collectors. Minerals. 2019. Vol. 9, Iss. 2. 118. DOI: 10.3390/min9020118
16. Chenyang Zhang. Experimental and computational insights into the selective adsorption mechanism of a novel flotation reagent 4–amino–5–mercapto–1,2,4–triazole on chalcopyrite surface. Proceedings of XXIX International Mineral Processing Congress. Moscow, 2018.
17. Shumskaya E. I., Sizykh A. S. Increasing of gold extraction from polymetallic ore of Novoshirokinskoe deposit. Gornyi Zhurnal. 2014. No. 11. pp. 44–48.

Language of full-text русский
Полный текст статьи Получить