Obtaining a silicon alloy from a sedimentary rock - tripoli

Abstract

The article examines the results of studies on the production of ferrosilicon from tripoli -a sedimentary rock consisting of opal-like silica. The main part of tripoli is amorphous silica. The studies included the thermodynamic modeling using the HSC-6.0 software package, based on the minimum Gibbs energy principle, combined with the second-order rotatable designs and electric melting of tripoli in an arc furnace. It was found that the interaction products in a tripoli-carbon-iron system under equilibrium conditions are FeSi