Journals →  Non-ferrous Мetals →  2021 →  #2 →  Back

BENEFICATION
ArticleName Quantum-chemical substantiation of collecting properties of acetylene reagents in flotation of sulphide minerals
DOI 10.17580/nfm.2021.02.03
ArticleAuthor Yushina T. I., Shchelkunov S. A., Malyshev O. A.
ArticleAuthorData

NUST MISiS College of Mining, Moscow, Russia:

T. I. Yushina, Candidate of Engineering Sciences, Associate Professor, Head of the Department of Minerals Processing and Technogenic Raw Materials, e-mail: yuti62@mail.ru

 

BioKhimProm LLC, Moscow, Russia:
S. A. Shchelkunov, Candidate of Chemical Sciences, Technical Director, e-mail: shelkunov66@mail.ru
O. A. Malyshev, Candidate of Engineering Sciences, CEO, e-mail: omalyshev57@mail.ru

Abstract

The paper presents the analysis results of known data and performed adsorption and spectral IR studies of MIG-4E, DMIPEK and DC-80 acetylene reagents in interaction with galena (PbS) and molybdenite (Mo2S) sulphide minerals. The IR spectra analysis of pure reagents and products of their interaction with the surface of sulphide minerals has showed that the adsorption of MIG-4E molecules takes place on the surface of lead sulphides, and DMIPEC molecules are adsorbed on the surface of molybdenite. Quantum-chemical calculations of the total potential energy of the complexes have shown that the complex formed by a molecule of MIG-4E – PbS of (HUMO) complexes by nucleophilic mechanism has 2514.0873 kcal/mol, which is almost an order of magnitude greater than the total potential energy (270.0439 kcal/mol) of MIG-4E – PbS (HUMO) complex formed by electrophilic mechanism. Analysis of the calculated data of the total potential energy of complexes formed by MIG-4E reagent molecules with PbS surface and DMIPEC molecules with Mo2S surface has showed that the total energy of π-complexes formed by reagents by electrophilic mechanism differs by 47.7% among reagent molecules and amounts to 270.0439 kcal/mol for (MIG-4E + PbS) complex, and 141.9386 kcal/mol for (DMIPEC + Mo2S) complex in the (HUMO) state. Such a difference in the values of total energies of the complexes can correlate with the conformational ability of DMIPEC reagent molecules. Usage of acetylene alcohols as additional selective collectors during flotation of a number of non-ferrous and precious metal ores has shown a significant increase in the extraction of target metals, which makes it possible to consider the reagents based on acetylene derivatives as promising for industrial applications.

keywords Flotation, adsorption, sulphide minerals, additional extraction, collecting properties, acetylene reagents, infrared spectroscopy, quantum-chemical investigations, nucleophilic and electrophilic mechanisms, electronic formula of π-complex
References

1. Abramov A. A. Theory of Creation of Innovation Flotation Technologies. Part 1. Theory of Modern Flotation. Tsvetnye Metally. 2013. No. 2. pp. 41–45.
2. Тaggart A. F., del Guidice G. R. M., Ziehl O. A. The Case for the Chemical Theory of Flotation. American Institute of Mining, Metallurgical and Petroleum Engineers. Transactions. 1934. Vol. 112. pp. 348–381.
3. Shvedov D. A. Hypothesis for the Causes of Easy Floatability of Sulphde Minerals and Difficult Floatability of Oxidized Minerals. Journal of Mining Institute. 1937. Vol. Х, Iss. 3. pp. 71–77.
4. Shvedov D. A., Shorsher I. N. The Oxidation Effect on the Flotation of Sulphide Minerals. Collection of Research Papers on the Theory and Practice of Flotation. Leningrad: Institut “Mekhanobr”, 1938. pp. 5–27.
5. Klassen V. I., Mokrousov V. A. Introduction to Flotation Theory. Moscow: Metallugizdat, 1953. 463 p.
6. Plaksin I. N., Shafeev R. Sh. On the Effect of Electrochemical Potential on Xanthate Distribution on Sulfide Surface. Doklady Akademii Nauk SSSR. 1958. Vol. 118, No. 3. pp. 546–548.
7. Plaksin I. N., Shafeev R. Sh. On Quantitative Evaluation of Xanthate Attachment in Terms of Surface Properties of Sulphide Minerals. Doklady Akademii Nauk SSSR. 1959. Vol. 128, No. 4. pp. 777–780.
8. Lippinen J. O., Basilio C. I., Yoon R.-H. In-situ FTIR Study of Ethyl Xanthate Adsorption on Sulfide Minerals Under Conditions of Controlled Potential. International Journal of Mineral Processing. 1989. Vol. 26. pp. 259–274.
9. Finkelstein N. P., Poling G. W. The Role of Dithiolates in Flotation of Sulfide Minerals. Mineral Science Engineering. 1977. Vol. 9. pp. 177–197.
10. Kondratiev S. A., Moshkin N. P., Konovalov I. A. Evaluation of Collecting Ability of Xanthate Forms Easily Desorbed from Mineral Surface. Journal of Mining Science. 2015. No. 4. pp. 164–173.
11. Bulatovic Srdjan M. Handbook of Flotation Reagents. Chemistry, Theory and Practice. Flotation of Sulfide Ores. Elsevier Science & Technology Books, 2007. 446 p.
12. Finkelstein N. P., Allison S. A. Natural and Induced Hydro phobicity in Sulphide Mineral Systems. Aiclhe Symposium Series. 1976. Vol. 71, Iss. 150. P. 165–175.
13. Abramov A. A. Theory of Creation of Innovation Flotation Technologies. Part III. Theory of Intensification of Technological Processes of Flotation. Tsvetnye Metally. 2013. No. 4. pp. 12–17.
14. Bogdanov O. S., Maksimov I. I., Podnek A. K., Yanis N. A. Theory and Technology of Ore Flotation. Moscow: Nedra, 1990. 363 p.
15. Shubov L. Ya., Ivankov S. I., Shcheglova I. K. Flotation Reagents in the Processes of Mineral Raw Material Enrichment. Handbook. Moscow : Nedra, 1990. In 2 books. Book 1. 400 p.
16. Abramov A. A. Flotation: Collecting Reagents. Collection of Research Works. Vol. 7. Moscow : Gornaya Kniga, 2012. 656 p.
17. Kurkov A. V., Pastukhova I. V. Development of Effective Flotation Reagents Based on New Types of Raw Materials and Production Waste. Modern Problems of Complex Processing of Natural and Technogenic Mineral Raw Materials : Collection of Works. St. Petersburg, 2005. pp. 17–23.
18. Abramov A. A. Theory of Creation of Innovation Flotation Technologies. Part IV. Theory of Increasing of Selectivity of the Collectors Operation During the Process of Flotation. Tsvetnye Metally. 2013. No. 5. pp. 12–18.
19. Glembotsky A. V., Podvishensky N. S., Ivankov S. I. Mechanism of Chemisorption of MIG-4E Reagent on Minerals of Sulphide Ores. Tsvetnye Metally. 1986. No. 10. pp. 87–90.
20. Shchelkunov S. A., Malyshev O. A. Foaming Agent for Flotation of Minerals. Eurasian Patent, No. 027616. Published: 31.08.17.
21. Shchelkunov S. A., Malyshev O. A., Yushina T. I., Dunaeva V. N. Flotation Properties of Additional Collectors, Foaming Agents Based on Acetylenic Alcohols. Non-ferrous Metals. 2015. No. 2. pp. 3–10. DOI: 10.17580/nfm.2015.02.01.
22. Pearson R. J. Hard and Soft Acids and Bases. Uspekhi khimii. 1971. Vol. 40, Iss. 7. pp. 1259–1282.
23. March J. Advanced Organic Chemistry. Reactions, Mechanisms, and Structure. In 4 vols. Vol. 1. Translated from English. Moscow : Mir, 1987. 381 p.
24. Yushina T. I., Мalyshev O. A., Shshelkunov S. A., Khrustalev D. P. Peculiarities of The DC-80 Reagent Based on Acethylenic Alcohols Effect in Flotation Processes. Non-ferrous Мetals. 2016. No. 2. pp. 7–11. DOI: 10.17580/nfm.2016.02.02.
25. Yushina T. I., Purev B., D’Elia Yanes K. S., Malofeeva P. R. Improvement of Porphyry Copper Flotation Efficiency with Auxiliary Collecting Agents Based on Acetylene Alcohols. Eurasian Mining. 2019. No. 1. pp. 25–30. DOI: 10.17580/em.2019.01.06.
26. Yushina T. I., Purev B., D’Elia K., Namuungerel B. Analysis of Technological Schemes and Substantiation of the Selection of the Reagent Regimes for Copper-Molybdenum Ores Flotation. Non-ferrous Мetals. 2019. No. 1. pp. 3–11. DOI: 10.17580/nfm.2019.01.01.
27. Yushina T. I., Purev B., Namuungerel B. Substantiation of the Erdenetiyn-Ovoo Copper-Molybdenum Ore Flotation Technology with the Use of Tertiary Acetylene Alcohols. Non-ferrous Metals. 2020. No. 2. pp. 3–10. DOI: 10.17580/nfm.2020.02.01.
28. Ivanova N. M., Shchelkunov C. A., Malyshev O. A. Quantum-Chemical Study of the Reaction of penta-4-en-2-yn-1-ol with Copper, Zinc, and Nickel Sulfides. Russian Journal of General Chemistry. 2007. Vol. 77, Iss. 7. pp. 1263–1267.
29. Cotton F. A., Wilkinson G. Advanced Inorganic Chemistry. Part 1. Transl. from Eng. by Churanov S. S. Moscow: Izdatelstvo “Mir”, 1969. 224 p.
30. Nakamoto K. Infrared and Raman Spectra of Inorganic and Coordination Compounds. Transl. from Eng. by Khristenko L. V. Moscow: Izdatelstvo Mir, 1991. 536 p.
31. Tarasevich B. N. IR Spectra of the Main classes of Organic Compounds. Moscow: Izdatelstvo MGU im. M. V. Lomonosova, 2012. 55 p.
32. Ivankov S. N. Separation of Mineral Complexes of Tin-Polymetallic Ores And Technogenic Formations of Noble and Non-Ferrous Metals on the Basis of Directed Changes in the Physicochemical State of the Surface of Minerals: Thesis of Inauguration of Dissertation … of Doctor of Technical Sciences. Moscow, 1997. 62 p.
33. Kukushkin Yu. N. Chemistry of Coordination Compounds. Moscow : Vysshaya Shkola, 1985. 455 p.
34. Kazitsyna L. A., Kupletskaya N. B. Application of UV, IR, NMR and Mass Spectroscopy in Organic Chemistry. Moscow : Izdatelstvo MGU, 1979. 240 p.
35. Minkin V. I., Simkin B. Ya., Minyaev R.M. Theory of Molecule Structure. Rostov-on-Don : Fenix, 1997. 560 p.
36. Shteingarts V. D. Coordination Catalysis In The Chemistry Of Unsaturated Compounds. Soros Educational Journal. 1996. No. 7. pp. 47–58.
37. Chem & BioOffice Desktop 2008 for Windows. User’s Guide. СambridgeSoft, 2008. 579 p.
38. Khan G. A., Gabrielova L. I., Vlasova N. S. Flotation reagents and their use. Moscow : Nedra, 1986. 270 p.

Full content Quantum-chemical substantiation of collecting properties of acetylene reagents in flotation of sulphide minerals
Back