Technological Bases of Zinc Sulphide Form Processing from Some Technogenic Formations / М. А. Mikheenkov, O. Yu. Sheshukov, I. V. Nekrasov, D.K. Yeghiazaryan // XXI Mendeleev Congress on general and applied chemistry, 9-13 September, 2019, Saint Petersburg : book of abstract in 6 volumes. - Saint Petersburg, 2019. - Vol. 3 : Physical chemistry of metallurgical processes. Energy efficiency, environmental safety and risk management of chemical industry. Chemical aspects of modern energetics and alternative enerhy resources. - 2019. - P. 77.