INVESTIGATION OF ULTRASONIC INFLUENCE ON THE KINETICS OF EXTRACTING GOLD FROM ELECTRONIC WASTE
Shoshay Z. Sadenova M.A. Suyundikov M.M. Sapinov R.V. Varbanov P.S. Absolyamova D.R.
2023Faculty of Metallurgy
Metalurgija
2023#62Issue 2207 - 210 pp.
In this paper the effect of ultrasonic treatment on the apparent activation energy of gold leaching from e-waste in aqueous thiourea solution was studied. The leaching was carried out under conventional conditions and under ultrasonic treatment. The leaching in both cases was carried out at 25 °C, 35 °C, 45 °C and 60 °C. The apparent activation energy using ultrasonic activation decreases. In both cases the process of gold leaching from e-waste proceeds in the diffusion region. Thus, ultrasonic intensification is a means of increasing the efficiency of hydrometallurgical processes of e-waste processing by reducing the activation energy of the process.
electronic waste , extraction , gold , thiourea , ultrasound
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D. Serikbayev East Kazakhstan technical university, Kazakhstan
Toraighyrov University, Pavlodar, Kazakhstan
Sustainable Process Integration Laboratory, SPIL, NETME Centre, Faculty of Mechanical Engineering, Brno University of Technology, VUT, Brno, Czech Republic
D. Serikbayev East Kazakhstan technical university
Toraighyrov University
Sustainable Process Integration Laboratory
10 лет помогаем публиковать статьи Международный издатель
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