S. I. Evdokimov
North Caucasian Institute of Mining and Metallurgу (State Technological University).
Russian Federation

 Cand. Sci. (Tech.), assistant prof. of the Department of mineral processing of the North Caucasian Institute of Mining and Metallurgу (State Technological University).

(362021, Republic of North Ossetia – Alania, Vladikavkaz, Nikolaev str., 44). 

T. E. Gerasimenko
North Caucasian Institute of Mining and Metallurgу (State Technological University).
Russian Federation

 Cand. Sci. (Tech.), head of the Department of intellectual property of the North Caucasian Institute of Mining and Metallurgy (State Technological University). 

Vladikavkaz.