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HEAVY NON-FERROUS METALS
ArticleName Investigations of extraction of copper and crud formation components of productive solution of Almaly deposit
DOI 10.17580/nfm.2023.01.02
ArticleAuthor Chepushtanova T. A., Yessirkegenov M. I., Mamyrbayeva K. K., Merkibayev Y. S.
ArticleAuthorData

Satbayev University, Almaty, Kazakhstan:

T. A. Chepushtanova, Candidate of Technical Sciences, PhD, Head of Department “Metallurgical Processes, Heat Engineering and Technology of Special Materials”, Associate Professor, Mining and Metallurgical Institute, e-mail: t.chepushtanova@satbayev.university
M. I. Yessirkegenov, Master's Degree, PhD student of “Metallurgical Processes, Heat Engineering and Technology
of Special Materials”, Mining and Metallurgical Institute, e-mail: m.yessirkegenov@satbayev.university
K. K. Mamyrbayeva*, PhD, Associate Professor of “Metallurgical Processes, Heat Engineering and Technology of Special Materials”, Mining and Metallurgical Institute, e-mail: k.mamyrbayeva@satbayev.university
Y. S. Merkibayev*, Master's Degree, Head of Laboratories of “Metallurgical Processes, Heat Engineering and Technology of Special Materials”, Mining and Metallurgical Institute, e-mail: y.merkibayev@satbayev.university


*Correspondence author.

Abstract

The SX-EW technology is more effective for the production of copper from refractory oxidized ores for the present day. A wide range of modern extractants is currently offered on the market for the extraction of copper from leaching solutions and its choice is a very important issue in the production of copper using the SX-EW technology. The aim of this work was to study the extraction properties of modified extractants of the Acorga series (5747, 5910, 5640) and unmodified extractant Lix 984N. It has been established that extractants Acorga 5640 and unmodified Lix984 have high selectivity to copper. During the extraction of copper from the productive solution with the use of all extractants, the formation of a third phase, cruda, is observed. Physical and chemical studies have established that the steak contains a large amount of silica, magnetite, hematite and anglesite. The distribution of iron, silica, and copper ions during extraction was studied and it was found that the extractant Lix 984 N (10%), then Acorga5640 (10%), has a high selectivity to copper/iron and copper/silica. Acorga 5640 (10%) is an effective extractant of copper from the productive solution of the Almaly deposit. It is observed that the amount of crud formed during extraction also depends on the rate of phase mixing, the number of revolutions of the stirrer, at a speed of 350-450 rpm, the formation of crud is 0.73%. The addition of the Acorga CR60 reagent in the amount of 5-10 ppm leads to a 3-3.2-fold decrease in the volume of the crud.

This study was funded by the Science Committee of the Ministry of Science and Higher Education of the Republic of Kazakhstan, № AP14871587.

keywords Copper, SX-EW technologies, extraction, extractants Acorga, Lix 984 N, selectivity, crud
References

1. Krein F. Extract ion in Copper Hydrometallurgy: Development and Current State. Complex Use of Mineral Resources. 2004. No. 2. pp. 36–55.
2. Ritcey G. M., Ashbrook A. V. Solvent Extraction: Principles and Applications to Process Metallurgy. Transl. from Eng. by Z. S. Golynko. Moscow: Metallurgia, 1983. 480 p.
3. Aminian H., Bazin C. Rate of crud formation in a copper pilot plant settler. Minerals Engineering. 1999. Vol. 12, Iss. 8. pp. 985–990.
4. Yudaev P. A., Kolpinskaya N. A., Chistyakov E. M. Organo-phosphorous Extractants for Metals. Hydrometallurgy. 2021. Vol. 201. 105558.
5. Manis Kumar Jha, Vinay Kumar, Jinki Jeong, Jae-Chun Lee. Review on Solvent Extraction of Cadmium from Various Solutions. Hydrometallurgy. 2012. Vol. 111–112. pp. 1–9.
6. Zhaowu Zhu, Chu Yong Cheng. Solvent Extraction Technology for the Separation and Purification of Niobium and Tantalum: a Review. Hydrometallurgy. 2011. Vol. 107, Iss. 1-2. pp. 1–12.
7. Judge W. D., Azimi G. Recent Progress in Impurity Removal During Rare Earth Element Processing: a Review. Hydrometallurgy. 2020. Vol. 196. 105435.
8. Wilson A. M., Bailey P. J., Tasker P. A., Turkington J. R., Grant R. A., Love J. B. Solvent Extraction: the Coordination Chemistry Behind Extractive Metallurgy. Chemical Society Reviews. 2014. Vol. 43, Iss. 1. pp. 123–134.
9. Nicholson H. M., Moe A., Kan D., Crane P. A. Developments at Central Asia Metals’ Kounrad Project. Mining Journal of Kazakhstan. 2017. No. 3. p. 40–46.
10. Chepushtanova T. A., Yessirkigenov M. I., Mamyrbayeva K. K., Merkibayev Y. S., Nikolosky A. Testing of the Optimum Extragent for Solvent-Extraction of Almaly Deposit Copper. Complex Use of Mineral Resources. 2022. No. 4. pp. 77–83.
11. Cole T. Understanding Aqueous-in-Organic Entrainment in Copper Solvent Extraction. Journal of the Southern African Institute of Mining and Metallurgy. 2016. Vol. 116, Iss. 6. pp. 525–531 p.
12. Liu J.-S., Lan Z.-Y., Qiu G.-Z., Wang D.-Z. Mechanism of Crud Formation in Copper Solvent Extraction. Journal of Central South University of Technology. 2002. Vol. 9, Iss. 3. pp. 169–172.
13. Virnig M. J., Olafson S. M., Kordosky G. A., Wolfe G. A. Crud Formation: Field Studies & Fundamental Studies. 4th International Conference COPPER 99-COBRE 99. 1999. pp. 291–304.
14. Bednarski T. Behavior of Iron and Manganese in Electrowinning Solutions – a Hull Cell Study. Tucson SME, December 2008. pp. 527–530.
15. Miller G. Methods of Managing Manganese Effects on Copper SX-EW Plants. Proceedings of the ALTA 2010 Nickel Cobalt Copper Conference, Melbourne, Australia. 2010. pp. 827–853.
16. Readett D., Miller G. The Impact of Silica on Solvent Extraction: Girilambone Copper Company, A Case Study. Proceedings Copper–Cobre 95, Cooper, W.C. 1995. pp. 679–691.
17. Judge W. D., Azimi G. Recent Progress in Impurity Removal During Rare Earth Element Processing: a Review. Hydrometallurgy. 2020. Vol. 196. 105435.
18. Scot Philip Sandoval, Morenci, AZ St.y SSR, Cook Morenci AZ. Method and Apparatus for Electrowinning Copper Using the. Ferrous/Ferricanode Reaction. USA 2005/0023151
19. Tinkler O. S. (US), Kramer K. A. (US), Tetlou P. E. (US), Kehmpbell D. (GB) Maes C. D. (US). Modification Of Selectivity Of Copper/Iron In Systems For Extraction Of Copper With Solvent On Base Of Oxime. Patent RU 2388836 C2. Published: 10.05.2010. Bul. No. 13. Int. Cl. C22B 3/40, C22B 15/00.
20. Chepushtanova T. A., Yessirkegenov M. I., Mamyrbaeva K. K., Nikoloski A., Luganov V. A. Interphase Formations in Copper Extraction Systems. Journal of Mining and Geological Sciences. 2020. Vol. 63. pp. 25–31.
21. Fletcher A. W., Gage R. C. Dealing with a siliceous crud problem in solvent extraction. Hydrometallurgy. 1985. Vol. 15, Iss. 1. pp. 5–9.
22. Petersen J. Heap Leaching as a Key Technology for Recovery of Values from Low-Grade Ores – a Brief Overview. Hydrometallurgy. 2016. Vol. 165. pp. 206–212.
23. Barton I. F., Hiskey J. B. Chalcopyrite Leaching in Novel Lixiviants. Hydrometallurgy. 2022. Vol. 207. 105775.
24. Watling H. R. Chalcopyrite Hydrometallurgy at Atmospheric Pressure: 1. Review of Acidic Sulfate, Sulfate–Chloride and Sulfate–Nitrate Process Options. Hydrometallurgy. 2013. Vol. 140. pp. 163–180.
25. Prasad M. S., Kenyen V. P., Assar D. N. Development of SX-EW Process for Copper Recovery—An Overview. Mineral Processing and Extractive Metallurgy Review. 1992. Vol. 8, Iss. 1-4. pp. 95–118.
26. Moya L., Bednarski T., Fischman A., McCallum T., Zambra R. New Additive to Reduce Crud Formation in Solvent Extraction Operations. Hydroprocesses 2018, 10th International Seminar on process Hydrometallurgy, June 20–22, 2018, Chile. pp. 131–136.
27. Mbao B., Fischmann A. J., Cohen L., Moya L., Moser M., McCallum T., Tinkler O. AcorgaTM CR60 Crud Mitigation Reagent – Commercial Trials in North America and Africa. Proceedings of ALTA 2019 Nickel-Cobalt-Copper Conference. 24th Annual Conference Proceedings, 18–25 May, 2019, Perth, Australia. pp. 267–276.

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