Testing of the optimum extragent for solvent-extraction of Almaly deposit copper

T.A. Chepushtanova; M.I. Yessirkegenov; K.K. Mamyrbayeva; Y.S. Merkibayev; A. Nikolosky

doi:10.31643/2023/6445.06

Authors

T.A. Chepushtanova Satbayev University
M.I. Yessirkegenov Satbayev University
K.K. Mamyrbayeva Satbayev University
Y.S. Merkibayev Satbayev University
A. Nikolosky Murdock University

DOI:

https://doi.org/10.31643/2023/6445.06

Keywords:

Copper, SX-EW technology, Acorga 5640, Selectivity, Extraction

Abstract

For the solvent extraction of copper from pregnant leach solutions, (PLS) a wide range of modern extractants is currently offered on the market, and its choice is a very important issue in the production of copper using the SX-EW (Solvent Extraction and Electrowinning) technology. The purpose of this work was to determine the optimal copper extractant for processing productive solutions of the Almaly deposit using the SX-EW. The studies were carried out with a productive solution obtained by leaching copper ores from the Almaly deposit of composition, g/dm3: 1) Cu– 0.262, Fe–17.97, SiO2–0.36. The results of copper extraction from model solutions showed that the maximum extraction of copper (94%) is observed when using the extractant 5% Acorga 5640, while the other extractants did not provide a high degree of extraction of 10% Lix984 - 93%; 10% Acorga 5640 - 91%; 10% Acorga 5910 and 10% Acorga 5747 - 85% each. According to the results of the retraction process, a high degree of copper extraction from the organic phase (90.2 and more) was ensured when using extractants of 5% Acorga 5640, 10% Lix984, and 10% Acorga 5640, the minimum - at 10% Acorga 5910 (88.2%). For the extraction of copper from the productive solution of the Almaly deposit 5% Acorga 5640 was chosen as the optimal extractant.

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Author Biographies

T.A. Chepushtanova, Satbayev University

Candidate of Technical Sciences, Ph.D., Head of Department ‘’Metallurgical processes, heat engineering and technology of special materials”, Associate Professor, Mining and Metallurgical Institute, Satbayev University, 22a Satpaev str.050013, Almaty, Kazakhstan.

M.I. Yessirkegenov, Satbayev University

Ph.D. student, Department ‘’Metallurgical processes, heat engineering and technology of special materials”, Mining and Metallurgical Institute, Satbayev University, 22a Satpaev str.050013, Almaty, Kazakhstan.

K.K. Mamyrbayeva, Satbayev University

Ph.D., Associate Professor, Department ‘’Metallurgical processes, heat engineering and technology of special materials”, Mining and Metallurgical Institute, Satbayev University, Almaty, Kazakhstan.

Y.S. Merkibayev, Satbayev University

Master's degree, head of laboratories of the JSC "Satbayev University", Mining and Metallurgical Institute, 22a Satpaev str.050013, Almaty, Kazakhstan.

A. Nikolosky, Murdock University

Associated professor, Murdock University, 90 South St, Murdoch WA 6150, Australia.

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