Oxidizability and Spontaneous Combustion of Native and Water-Bearing Ore and Rocks
A. A. Eremenko1, T. P. Darbinyan2, Yu. N. Shaposhnik1, V. A. Portola3, P. A. Tsoi1
1Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
2Norilsk Nickel, Norilsk, Russia
3Gorbachev Kuzbass State Technical University, Kemerovo, Russia
Keywords: Mineral deposit, ore, rocks, flooding, spontaneous combustion, oxidizability, absorption
Abstract
The article describes determination of oxidizability and spontaneous combustion of ore and rocks as a case-study of the Oktyabrsky deposit. The rate of oxidation of sulfide ore increases after watering. The authors present the studies on sensitivity of ore and enclosing rocks to spontaneous combustion, as well as on gas emission in isothermal conditions and in heating. It is found that sulfide ore, hornfels and gabbro-dolerite are sensitive to spontaneous combustion.
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