I. N. Pyagay
Saint Petersburg Mining University
Russian Federation

Igor N. Pyagay, Dr. Sci. (Eng.), Senior Researcher, Director of the Scientific Center "Processing problems of mineral and technogenic resources"

2, 21th line, Vasilievsky Island, Saint Petersburg 199106

V. M. Sizyakov
Saint Petersburg Mining University
Russian Federation

Viktor M. Sizyakov, Dr. Sci. (Eng.), Professor, Head of Research of the Scientific Center "Processing problems of mineral and technogenic resources"

2, 21th line, Vasilievsky Island, Saint Petersburg 199106

Ya. A. Svakhina
Saint Petersburg Mining University
Russian Federation

Yana A. Svakhina, Engineer of the Scientific Center "Processing problems of mineral and technogenic resources"

2, 21th line, Vasilievsky Island, Saint Petersburg 199106

M. E. Titova
Saint Petersburg Mining University
Russian Federation

Marina E. Titova, Master’s Degree student

2, 21th line, Vasilievsky Island, Saint Petersburg 199106

V. V. Miroshnichenko
Saint Petersburg Mining University
Russian Federation

Vladimir V. Miroshnichenko, Student

2, 21th line, Vasilievsky Island, Saint Petersburg 199106