1. Laboratory of Precious Metals, Kazmekhanobr State Scientific Production Association of Industrial Ecology, Almaty, Kazakhstan
2. Department of Chemistry and Chemical Technology, Al-Farabi Kazakh National University, Almaty, Kazakhstan
3. Mineral-Metal Recovery and Recycling (MMR&R) Research Group, Mineral Processing Division, Department of Mining Engineering, Suleyman Demirel University, Isparta, Turkey
4. Department of Metallurgical Processes, Heat Engineering and Technology of Special Materials, Satbayev University, Almaty, Kazakhstan