Journals →  Tsvetnye Metally →  2017 →  #9 →  Back

BENEFICATION
ArticleName Investigation of modified coal sorbents for fine gold reextraction during flotation concentration
DOI 10.17580/tsm.2017.09.04
ArticleAuthor Chanturiya V. A., Ivanova T. A., Zimbovskiy I. G., Koporulina E. V.
ArticleAuthorData

Research Institute of Comprehensive Exploitation of Mineral Resources, Moscow, Russia:

V. A. Chanturiya, Academician of Russian Academy of Sciences, Chief Researcher
T. A. Ivanova, Senior Researcher, e-mail: tivanova06@mail.ru
I. G. Zimbovskiy, Researcher
E. V. Koporulina, Chief Geologist

Abstract

We obtained some new coal sorbents, modified by sulfur- and phosphorousbearing collectors: oxypropyl ether of diisopropyldithiophosphorous acid (Afm), oxypropyl ether of dibuthildithiocoal acid (OPBK), 1, 2-di(1, 3, 5-dithiazin-5il) methane (MTKh) and 1, 2-di(1, 3, 5-dithiazin-5il) ethane (ETKh). We considered the possibility of the flotation and sorption reextraction of fine gold during the concentration of gold-bearing products using the obtained sorbents. Our investigations used the samples of fine-grained final tailings of copper-zinc ore (Gai deposit) (0.8 g/t of Au) with addition of pyrite (–0.04 mm) with artificialy sprayed gold FeS2(Au). Gold was sprayed on pyrite particles by reduction adsorption from H[AuCl4] solution. X-ray electron microscopy showed the selective adsorption of ultra-fine particles of FeS2(Au) on sorbents, modified by ETKh and Afm. Comparative flotation of ore-mineral mixture (~11 g/t of Au) with initial coal sorbent and sorbents, modified by Afm, OPBK, MTKh and ETKh, showed the advantage of the sorbents, containing ETKh and Afm. In comparison with the process, when kerosene is used in flotation, introduction of ETKh-modified sorbent in pulp during the tail flotation allowed the increase of gold content in concentrate by 6.4%, while gold extraction in foam flotation product allowed the increase of gold content in concentrate by 7.3%. For the first time, we defined the ability of coal sorbents, modified by hardly soluble complexing agents ETKh and Afm to accumulate fine gold-bearing particles selectively, and, as a result, to provide the increasing of fine gold extraction during the flotation and sorption concentration of goldbearing products.

keywords Flotation, modified sorbents, gold-bearing tails, gold extraction, artificial gold spraying, collectors
References

1. Deryabina N. A. Fine gold extraction using adhesion-oil separation : thesis of inauguration of Dissertation … of Candidate of Engineering Sciences. Chita, 2004.
2. Lvov B. D. Method and device for extracting free gold from placer deposits and ores. Patent WO2010/138094 A1. Published: 02.12.2010.
3. McClelland G. E., Hill S. D. Silver and Gold Recovery from Low Grade Resources. Mining Congress Journal. 1981. Vol. 61, No. 6. pp. 17–23.
4. House C. J., Townsend I. G., Veal C. J. Coal-Gold Agglomeration – Pilot Scale Retreatment of Tailings. Randol International Gold Conference. Perth, Australia, 1988. pp. 111–116.
5. Shokina L. N. Method of gold extraction from mineral raw materials, containing fine gold fractions. Patent RF, No. 2467083. Published: 20.11.2012.
6. Algebraistova N. K., Makshanin A. V., Groo E. A. Method of processing of gold-bearing raw materials for gold extraction. Patent EA 018929. Published: 28.09.2012.
7. Bellamy S. A., House C. J., Veal C. J. Recovery of Fine Gold from a Placer Ore by Coal Gold Agglomeration. Gold Forum on Technology and Practices “World Gold – 89”. Litteton, Colorado, USA : Society for Mining, Metallurgy and Exploration, 1989. pp. 347–352.
8. Aleksandrova T. N., Gurman M. A., Litvinova N. M., Bogomyakov R. V. Flotation-adsorption method of extraction of ultra-disperse particles from gold-bearing raw materials. Patent RF, No. 2465962. Applied: 28.02.2011. Published: 10.11.2012.
9. Sidyakina G. G., Nosalskaya T. V., Smirnova O. M., Gorokhova V. K., Serga Yu. V. Ecologically pure biotechnology of dressing of gold-bearing ores and technogenic wastes. 6-th International Conference “Partnership for the waste problem solving”. Kharkiv, Ukraine, April 9, 2009.
10. Aleksandrova T. N., Rasskazov I. Yu., Litvinova N. M., Bogomyakov R. V. Method of flotation extraction of gold during the dressing of gold-bearing shaly sands. Patent RF, No. 2426596. Published: 20.08.2011.
11. Ivanova T. A., Zimbovskiy I. G., Koporulina E. V. Ways of increasing of hogweed use efficiency during the dressing of gold-bearing sulfides. Fiziko-tekhnicheskie problemy razrabotki poleznykh iskopaemykh. 2017. No. 2. pp. 128–134.
12. Ivanova T. A., Chanturiya V. A., Zimbovskiy I. G. New experimental evaluation techniques for selectivity of collecting agents for gold and platinum flotation from fine-impregnated noble metal ores. Fiziko-tekhnicheskie problemy razrabotki poleznykh iskopaemykh. 2013. No. 5. pp. 127–137.
13. Arkhipova A. A. Sorbents, noncovalently modified by diketones for rare-earth elements concentration: Dissertation … of Candidate of Chemical Sciences. Moscow : MGU, 2015.
14. Reyes-Bozo L., Godoy-Faúndez A., Higueras P. Greening Chilean copper mining operations through industrial ecology strategies. Journal of Cleaner Production. 2014. Vol. 84. pp. 671–679.
15. Saha K., Agasti S. S., Kim C., Li X., Rotello V. M. Gold Nanoparticles in Chemical and Biological Sensing. Chemical Reviews. 2012. Vol. 112, No. 5. pp. 2739–2779.
16. Jans H., Huo Q. Gold nanoparticle-enabled biological and chemical detection and analysis. Chemical Society Reviews. 2012. Vol. 41, No. 7. pp. 2849–2866.
17. Syed S. Recovery of gold from secondary sources — a review. Hydrometallurgy. 2012. Vol. 115–116. pp. 30–51.
18. Aleev R. S., Dalnova Yu. S., Aksenenko R. I., Germasheva N. I., Esipenko A. I., Poloumov A. V., Borisova V. V., Nedorubko A. G. Method of gold and palladium extraction from solutions. Patent RF, No. 2102508. Published: 20.01.1998.
19. Chanturiya V. A., Ivanova T. A., Zimbovskiy I. G., Bondarev A. A., Komarovskiy V. L. Influence of conditions of preparing of complex-forming reagents (dithiazines) on gold-bearing minerals flotation results. Fiziko-tekhnicheskie problemy razrabotki poleznykh iskopaemykh. 2014. No. 6. pp. 127–135.

Language of full-text russian
Full content Buy
Back