THE EFFECT OF HYDROGEN PEROXIDE AND POTASSIUM AMYLXANTHATE ON THE SURFACE PROPERTIES OF CHALCOCITE AND ENARGITE

Authors

Berdakh T. DANIYAROV, Uzbek-Japan Innovation Youth Centrer, Tashkent, UzbekistanFollow
Hajime MIKI, Department of Mineral Engineering, Faculty of Engineering, Kyushu University, JapanFollow
Daminbek A. ZIYATOV, National University of Uzbekistan, Tashkent, UzbekistanFollow
Shahlo DAMINOVA, National University of Uzbekistan, Tashkent, UzbekistanFollow

Abstract

The effect on the surface properties and floatability of chalcocite and enargite after oxidative treatment with hydrogen peroxide (H₂O₂) in the presence and absence of potassium amylxanthate (PAX) as a collector was studied. In this research, flotation tests were carried out on mixed and individual minerals. Oxidative treatment with hydrogen peroxide had a negative effect on the floatability of chalcocite and enargite. PAX adsorption analysis shows that enargite adsorbs PAX faster than chalcocite. Moreover, Fourier transform infrared spectroscopy analysis shows that PAX was adsorbed in the form of copper amylxanthate on chalcocite and enargite surfaces. In addition, dixanthogen was adsorbed on the surface of enargite, and the surface of chalcocite was more oxidized compared to enargite. Flotation of mixed minerals shows that the floatability of chalcocite was more suppressed compared to enargite after treatment with PAX and H₂O₂. This result demonstrates the possibility of separating chalcocite and enargite by treating PAX and H₂O₂ at pH 9.

Recommended Citation

DANIYAROV, Berdakh T.; MIKI, Hajime; ZIYATOV, Daminbek A.; and DAMINOVA, Shahlo (2024) "THE EFFECT OF HYDROGEN PEROXIDE AND POTASSIUM AMYLXANTHATE ON THE SURFACE PROPERTIES OF CHALCOCITE AND ENARGITE," CHEMISTRY AND CHEMICAL ENGINEERING: Vol. 2023: No. 4, Article 6.
DOI: https://doi.org/10.34920/cce202346
Available at: https://cce.researchcommons.org/journal/vol2023/iss4/6