A. K. Serikbayeva
Caspian State University of Technologies and Engineering n.a. Sh. Esenov.
Kazakhstan

 Cand. Sci. (Tech.), head of the Department «Ecology and chemical technology», Caspian State University of Technologies and Engineering n.a. Sh. Esenov.

(130003, Republic of Kazakhstan, Mangystan region, Aktau, 32 microdistrict). 

K. Zh. Zhumashev
Chemical and Metallurgical Institute n.a. J. Abishev.
Kazakhstan

 Dr. Sci. (Tech.), prof., head of Laboratory of physics and chemistry of complex use of condensed waste, Chemical and Metallurgical Institute n.a. J. Abishev.

(470032, Republic of Kazakhstan, Karaganda, Yermekova str., 63). 

F. A. Berdikulova
National Center for Complex Processing of Mineral Raw Materials of the Republic of Kazakhstan.
Kazakhstan

Berdikulova F.A. – Cand. Sci. (Tech.), leading researcher, National Center for Complex Processing of Mineral Raw Materials of the Republic of Kazakhstan.

(050036, Republic of Kazakhstan, Almaty, Zhandosov str., 67).

Sh. K. Akilbekova
Kazakh National Research Technical University n.a. K.I. Satpayev.
Russian Federation

 Cand. Sci. (Tech.), lecturer of Department of metallurgy and mineral processing, Kazakh National Research Technical University n.a. K.I. Satpayev.

(050013, Republic of Kazakhstan, Almaty, Satpayev str., 22a).