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ArticleName Investigation of the interaction of modified polyvinyl caprolactam with the surface of minerals included in the composition of polycomponent ores
DOI 10.17580/tsm.2023.07.01
ArticleAuthor Matveeva T. N., Getman V. V., Karkeshkina A. Yu.

Research Institute of Comprehensive Exploitation of Mineral Resources named after Academician N. V. Melnikov, RAS, Moscow, Russia:

T. N. Matveeva, Head of the Department of Complex Extraction of Mineral Components from Natural and Technogenic Raw Materials, Doctor of Technical Sciences
V. V. Getman, Senior Researcher Candidate of Technical Sciences, e-mail:
A. Yu. Karkeshkina, Researcher Candidate of Technical Sciences


The use of traditional reagents for flotation does not fully provide a sufficient degree of separation, high recovery of metals and is accompanied by significant losses (up to 35–50%) of non-ferrous and noble metals. An innovative solution to improve the efficiency and selectivity of the flotation process is the development of new effective and environmentally friendly domestic reagents that can significantly increase the extraction of fine and ultrafine mineral components from hard-to-wash raw materials. Among the representatives of such reagents are water-soluble polymers that are sensitive to temperature changes. The studies were carried out on monomineral samples of chalcopyrite, pyrite, and galena. As an additional reagent-collector for the flotation separation of finely divided products (95–99% of the 0.074 mm class) containing non-ferrous and noble metals, a modified polymer polyvinyl caprolactam (PVKMDTK) has been proposed. Using electron and laser microscopy, the adsorption of PVKMDTK on K sulfide minerals that are a part of polycomponent ores, chalcopyrite and galena, has been identified. It has been established that PVKMDTK exhibits selective K collecting properties with respect to sulfide minerals under flotation conditions. It increases the floatability of galena and chalcopyrite and does not float pyrite, which, under ore flotation conditions, will improve the quality of the bulk copper-lead concentrate.
The study was supported by the Russian Science Foundation grant No. 22-17-00149,

keywords Flotation, modified polyvinyl caprolactam, sulfide minerals, chalcopyrite, galena, pyrite

1. Rogozhnikov D. А., Karimov К. А., Dizer О. А., Mamyachenkov S. V., Naboychenko S. S. Complex processing of polymetallic sulfide middling products of non-ferrous metallurgy enterprises. Yekaterinburg : Izdatelstvo UMTs UPI, 2022. pp. 7, 8.
2. Nebera V. P. Flocculation of mineral suspensions. Moscow : Nedra, 1983. 288 p.
3. Deryagin B. V., Dukhin S. S., Rulev N. N. Microflotation. Moscow : Khimiya, 1986. 112 p.
4. Ng W. S., Connal L. A., Forbes E., Franks G. V. A review of temperatureresponsive polymers as novel reagents for solid liquid separation and froth flotation of minerals. Minerals Engineering. 2018. Vol. 123. pp. 144–159.
5. Verezhnikov V. N., Plaksitskaya Т. V., Poyarkova Т. N. Ph-thermal properties of (co)polymers of N,N-dimethylaminoethyl methacrylate and N-vinyl caprolactam. Vysokomolekulyarnye soedinieniya. 2006. Vol. 48, No. 8. pp. 1482–1487.
6. Xiao Fu, Hosta-Rigau L., Rona Chandrawati, Jiwei Cuil. Multi-stimuli-responsive polymer particles, films, and hydrogels for drug delivery. Chem. 2018. Vol. 4. pp. 2084–2107. DOI: 10.1016/j.chempr.2018.07.002
7. Yingshu Guo, Li Sun, Yajing Wang, Qianqian Wang et al. Nanomaterials based on thermosensitive polymer in biomedical field. Frontiers in Chemistry. 2022. DOI: 10.3389/fchem.2022.946183
8. Chanturiya V. A., Nedosekina T. V., Ivanova T. A., Stepanova V. V. Flotation method of noble metals. Patent RF, No. 2368427. Published: 27.09.2009.
9. Chanturiya V. A., Getman V. V. Experimental investigation of interaction between modified thermomorphic polymers, gold and platinum in dressing of rebellious precious metal ore. Journal of Mining Science. 2015. Vol. 51, No. 3. pp. 580–585.
10. Chanturiya V. A., Matveeva T. N., Ivanova T. A., Getman V. V. Mechanism of interaction of cloud point polymers with platinum and gold in flotation of finely disseminated precious metal ores. Mineral Processing and Extractive Metallurgy Review. 2016. Vol. 37, No. 3. pp. 187–195.
11. Nizova S. А., Chepikova М. V. Water soluble polymers. Structure, preparation, properties, application. Gubkin University : Materials of the textbook for lectures, 2011. 46 p.
12. Sutyagin V. М., Lyapkov А. А. General chemical technology of polymers. 6th edition, stereotypical. St. Petersburg : Lan, 2023. 208 p.
13. Matveeva T. N., Getman V. V., Karkeshkina А. Yu. Study of the use of polyvinylcaprolactam in the reagent mode of gold flotation. Tsvetnye Metally. 2021. No. 8. pp. 15–20.
14. Getman V. V., Karkeshkina А. Yu. The use of polyvinyl caprolactam in the process of flotation enrichment of sulfide ores. Innovative processes of complex processing of natural and technogenic mineral raw materials. Proceedings of the international conference. 2020. pp. 173–176.
15. Denisova E. I., Kartashov V. V., Rychkov V. N. Solid-phase synthesis of metal oxide powders: tutorial. Yekaterinburg: UGTU – UPI, 2008. 31 p.
16. Belov Е. G. Reductionn of the inorganic salts hygroscopicity by solid-phase modification. Vestnik tekhnologicheskogo universiteta. 2017. Vol. 20, No. 2. pp. 33–35.
17. Koptyaeva Е. I. Solid-phase modification of polysaccharides – arabinogalactan, chitosan, pectin with poorly soluble pesticides : thesis of inauguration of Dissertation … of Candidate of Engineering Sciences. Ufa, 2013.
18. Byrko V. М. Dithiocarbamates. Moscow : Nauka, 1984. 342 p.
19. Matveeva Т. N., Gromova N. К., Lantsova L. B., Gladysheva О. I. On the question of the mechanism of interaction of the morpholindithiocarbamate and cyanoethyldiethyldithiocarbamate reagents with low-dimensional gold on the surface of sulfide minerals during the flotation of refractory gold-bearing ores. Fiziko-tekhnicheskie problemy razrabotki poleznykh iskopaemykh. 2022. No. 4. pp. 98–107.
20. Matveeva Т. N., Gromova N. К., Lantsova L. B. Experimental substantiation of collectors of the class of cyclic and aliphatic dithiocarbamates for the extraction of gold-bearing sulfides from complex ores. Fiziko-tekhnicheskie problemy razrabotki poleznykh iskopaemykh. 2021. No. 1. pp. 137–145.
21. Costine A., Fawell Ph., Chryss A., Dahl S., Bellwood J. Development of test procedures based on chaotic advection for assessing polymer performance in high solids tailing applications. Processes. 2020. No. 8. p. 731.
22. Shokhin V. N., Lopatin А. G. Gravity enrichment methods. Moscow : Nedra, 1993. pp. 29, 35–50.

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