Complex Multi-Component Alloy of Iron, Silicon and Chromium

Abstract

A complex multi-component alloy of iron, silicon and chromium includes, as a weight percentage of the total weight of the alloy: not less than 21.0 chromium, not less than 61.0 silicon, 0.5 to 4.0 aluminium, 0.31 to 2.0 calcium, not more than 0.02 carbon, the rest being iron and traces of impurities, with a chromium-iron ratio of not less than 2.0. This type of alloy is used in ferroalloy metallurgy, especially as a reductant of Cr2O3 included in chromium ore in the production of low-carbon ferrochrome. The alloy, according to at least one embodiment, allows increasing the chromium yield from chromium ore to low carbon ferrochrome, reducing the mass content of Cr2O3 in the waste slag by increasing the reduction potential with respect to Cr2O3 in chromium ore.

Dependencies are inferred from the claim text.