Scholarly record
APPLICATION OF BIOLEACHING OF COPPER FLOTATION TAILINGS
Abstract
The lack of new deposits with a rich copper content and the depletion of old deposits, as well as the need to comply with environmental requirements, raises the issue of the need to process the tailings of metallurgical industries. In Kazakhstan was accumulated significant stocks of tailings "Borgezsay" and "Staroye". The tailings reserves are estimated at up to 1 billion tons. Sample evaluation showed that the average copper content in the tailings is 0.15-0.2%. More than 1 million tons of copper are stored in this tailings. The complexity of the structure of minerals passes through the process of leaching of these wastes. Several types of leaching in sulfuric acid were considered for processing. Methods using chalcopyrite as a catalyst or dissolution with chlorides were not economically efficient. Studies have been carried out on the use of copper bioleaching. Bioorganisms destroy various minerals of metals, ensures the transition of metals into the leaching solution. Thionic bacteria Acidithiobacillus ferrooxidans were used. The strains of these iron-oxidizing bacteria occupy an exceptional position among thionic bacteria, since in addition to the ability to autotrophic growth due to the oxidation of sulfur compounds, they can use the energy of oxidation of ferrous iron. Studies have shown that the use of these bacteria can reduce the copper content in samples from 0.2% till 0.05%, in some cases down to 0.005%. Bioleaching carried out on various tailings samples showed the effectiveness of this method.
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Polkin S.I., Adamov E.V., Panin V.V. Technology of bacterial leaching of non-ferrous and rare metals. - M.: Nedra. 1982. - 288 p.
Baibatsha A.B. Mineralogy of the tails of the Zhezkazgan processing plant. // Almaty : KazNITU, 2018. - 160 p.
Constanza D., Ricardo S., Enric B. and others. Treatment of the antibiotic cepalexin by heterogeneous electrochemical processes based on Fenton using chalcopyrite as a stable catalyst. // General Environment Science 2020
Parker A., Klauber S., Kugianos A., Watling H. and Van Bronswijk W. Investigation of the mechanism of oxidative dissolution of chalcopyrite by X-ray photoelectron spectroscopy // Hydrometallurgy, 2003-71(1). pp. 265-276. DOI: 10.1016/s0304-386x(03)00165-8
Khainasova T.S. Factors influencing bacterial and chemical processes of processing of sulfide ores // Notes of the Mining Institute. 2019. Vol. 235. pp. 47-54 DOI: 10.31897/pmi.2019.1.47
Watling H. Review of biohydrometallurgical extraction of metals from polymetallic mineral resources. // Minerals. 2015. Vol. 5. No. 1. pp. 1-60. DOI: 10.3390/min5010001
Brierly K., Briggs A. Selection and calculation of equipment and bio-oxidation schemes. / Design, practice and control of processing plants. Ed. A. Mular, D. Halbe, D. Barrett. / MSP. 2002. pp. 1540-1568.
Baibatsha A., Dyusembayeva K., Bekbotaeva A. 2016 Investigation of the tailings of the Zhezkazgan processing plant as a technogenic ore deposit. 16th International Interdisciplinary Scientific Geoconference: SGEM pp. 579-586. DOI: 10.5593/sgem2016/b11/s01.073
Baibatsha A., Bekbotaeva A., Turysbekova G., Bektai E., Omarova G. 2021 Geological and mineralogical study of ore tailings for biological leaching. // Periodicals on engineering and natural sciences pp. 921 - 937. DOI: 10.21533/pen.v9i3.2298
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