JOINT PRODUCTION OF CALCIUM CARBIDE AND A FERROALLOY OF THE DAUBABA DEPOSIT BASALT

The present article contains the results of studying the electrothermal processing of the Daubaba deposit basalt (50.5% of SiO2, 19.9% of Al2O3, 9.3% of CaO, 9.6% of Fe2O3,7.2% of MgO, 1.1% of TiO2, 2.9% of ∑ (K2O + Na2O), 0.5% of MnO)) for production of calcium carbide and a ferroalloy. The basalt processing consisted in its electrosmelting in a monoelectrode arc furnace in graphite crucibles with diameter of 6 cm. The research was implemented using a second order rototable Box-Hunter plan. The subjects of interest were the effect of coke, steel cuttings and lime contents on the extraction degree of Si and Al in a ferroalloy and Ca in a technical calcium carbide; Si and Al concentration in the alloy obtained and a calcium carbide capacity.