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PROSPECTS FOR RENEWAL OF THE KIROVSKOYE GOLD ORE DEPOSIT IN THE PRIAMURYE

S. M. Radomskiy, V. I. Radomskaya

Institute of Geology and Nature Management, Far East Branch of RAS, Blagoveshchensk, Russia

Possible prospects for development of the well-known Kirovskoye gold ore deposit in the Priamurye (Сis-Amur River region) of moderately sulphide formation are presented. The results are evaluated and applied gold mining technologies are characterized in historical chronology. Concentrations of the precious metals group (Au, Ag, Ru, Rh, Pd, Os, Ir, Pt) were estimated to use possibilities of complex recovery of commercial components from minerals, mineral-dressing products and non utilizable waste to complete the exploitation of deposit and comprehensive land restoration. The methods of atomic absorption, voltammetry, photocolorimetry, catalimetry and chemical analysis were used with an error in accuracy, correctness and reproducibility of result ≤ 30 %. The current state of mineral resources base of the mine is investigated. Characteristics of mineral and chemical compositions of ores and waste dumps are given. The laboratory comparison of application methods in gold mining using methods of modern technologies with samples of mineral raw materials of the Kirovskoye deposit is performed. A method is proposed for the thiocarbamide preparation of the entire group of precious metals with a solution of composition (0,5 M H2SO4+0,5 M Fe2(SO4)3+0,35 M (NH2)2CS) in technologies of gold, silver and platinoids leaching from sulphide concentrates, ores and mine refuses with recovery ratios of 90–99 %.

Keywords: precious metals, distribution, Kirovskoye gold ore deposit, Priamurye.

DOI 10.20403/2078-0575-2020-1-56-62