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PROCESSING AND COMPLEX USAGE OF MINERAL RAW MATERIALS
ArticleName Analysis of dressability of fluoritebearing mining and processing waste in the Far East of Russia
DOI 10.17580/gzh.2018.10.15
ArticleAuthor Kienko L. A., Voronova O. V.
ArticleAuthorData

Institute of Mining, Far East Branch, Russian Academy of Sciences, Khabarovsk, Russia

L. A. Kienko, Senior Researcher, Candidate of Engineering Sciences, kienkola@rambler.ru
O. V. Voronova, Researcher

Abstract

The mill tailings of fluorite ores from the Far East Region have been estimated for concentration possibility. The volume of mill tailings at Yaroslavskaya mining company is estimated as being more than 30 million tons. The analysis of two samplings has revealed concentrations of fluorite within 13–23% range, calcite – up to 14%, and zinc – in the range of 0.4–0.6%. The studies of elemental composition and washability show that the samples contain 15.2–20.7% of CaF2, 13.35–10.2% of CaCO3, and 0.49–0.38% of Zn. Surface layer of mineral grains of the tailings has been mineralogically and technologically examined to choose a particular complex of necessary prior operations which would ensure the material conditioning and further efficient interaction with flotation reagents. Some technical solutions suggested have increased the fluorite concentration productivity; and optimal parameters found for acid-base flotation regime have neutralized negative influence of salts and slimes of previous processing cycle. The use of a mixture of ammonium fluoride and lignosulfonate as a modifier was effective. During processing of sample 1 and sample 2, extraction of fluorite to concentrates with the fluorite content of 92.2–92.8 % constituted more than 52 % and 69 %, respectively. The increased quality of concentrates is accompanied by decreased extraction that is conditioned by the presence of great number of dirty grains transpierced by micro inclusions of calcite and silicates. Concentration of sphalerite to a separate product run with low efficiency; extraction of zinc to standard concentrate constituted 38.84%. The inclusion of sulfide flotation in the main scheme will allow increasing the efficiency of fluorite cycle, i.e. extraction of CaF2 to concentrates of grade FF-92 may grow as high as 70%.

keywords Mining and processing waste, fluorite, sphalerite, surface formations, slimes, flotation, modifier, micro inclusions
References

1. Grekhnev N. I., Rasskazov I. Yu. Geochemical transformation of waste products of concentrate in applied mining regions of the southern Far East. Russian Journal of Pacific Geology. 2016. Vol. 35, No. 2. pp. 107–113.
2. Chanturiya V. А., Vaisberg L. A., Kozlov А. P. Promising trends in investigations aimed at all-round utilization of mineral raw materials. Obogashchenie Rud. 2014. No. 2. pp. 3–9. DOI: 10.17580/or.2014.02.01
3. Kienko L. A., Samatova L. A., Voronova O. V. About the problem of increasing of flotation selectivity during the concentration of carbonate-fluorite ores of Primorskiy Territory deposits. Gornyi Zhurnal. 2013. No. 12. pp. 63–67.
4. Shestovets V. Z., Egorov N. V., Pavlov V. E., Krylova L. V. Development of processing technology for fluorspar ore at Yaroslavsky Mining and Processing Works. Gornyi Zhurnal. 2000. No. 9. pp. 26–28.
5 Bogdanov O. S., Maksimov I. I., Podnek A. K., Yanis N. A. Theory and technology of ore flotation. 2nd enlarged and revised edition. Moscow : Nedra, 1990. 364 p.
6. Gao Z., Bai D., Sun W., Cao X., Hu Y. Selective flotation of scheelite from calcite and fluorite using a collector mixture. Minerals Engineering. 2015. Vol. 72. pp. 23–26.
7. L. A. Kienko, O. V. Voronova. Method for concentration of carbonate-fluorite ore. Patent RF, No. 2646268. Applied: 12.04.2017. Published: 02.03.2018. Bulletin No. 7.
8. Shi Q., Feng Q., Zhang G., Deng H. A novel method to impr ove depressant s actions on calcite flotation. Minerals Engineering. 2014. Vol. 55. pp. 186–189.
9. Abramov A. A. Dressing by Flotation. 4th revised and enlarged edition. Moscow : Gornaya Kniga, 2017. 600 p.
10. Wills B. A., Finch J. Wills’ Mineral Processing Technology: An Introduction to the Practical Aspects of Ore Treatment and Mineral Recovery. 8th edition. Oxford : Butterworth-Heinemann, 2015. 512 p.
11. Xiangning Bu, Guangyuan Xie, Yaoli Peng, Linhan Ge, Chao Ni. Kinetics of flotation. Order of process, rate constant distribution and ultimate recovery. Physicochemical Problems of Mineral Processing. 2017. Vol. 53(1). pp. 342–365.
12. Zhang C., Sun W., Hu Y., Tang H., Yin Z. et al. Investigation of two-stage depressing by using hydrophilic polymer to improve the process of fluorite flotation. Journal of Cleaner Production. 2018. Vol. 193. pp. 228–235.
13. Zhilin V. V., Saenko V. I. Prerequisites for processing zinc–fluorite ore of the Voznesensky deposit. Gornyi Zhurnal. 2000. No. 9. pp. 30–32.
14. Ignatkina V. A. Selective reagent regimes of flotation of non-ferrous and noble metal sulfides from refractory sulfide ores. Tsvetnye Metally. 2016. No. 11. pp. 27–33. DOI: 10.17580/tsm.2016.11.03
15. Kienko L. A., Voronova O. V. Performance Evaluation of Comprehensive Processing of Zinc-Fluorite Ore in the Voznesensky Mining Area. Journal of Mining Science. 2012. Vol. 48, Iss. 5. pp. 928–933.

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