METHOD FOR PRODUCING CHROMIUM-CONTAINING MOLTEN IRON

Proposed is a method for producing chromium-containing molten steel at reduced costs and with a reduced generation amount of waste. It is a method for producing chromium-containing molten steel in which a steelmaking refining furnace is used to melt and heat a raw material including a chromium-containing raw material and to perform rough decarburization by oxygen blowing. The method includes a first step in which a slag basicity before the rough decarburization by oxygen blowing is adjusted to be in the range of not less than 1.5 and not more than 3.0, a slag basicity after the rough decarburization by oxygen blowing is adjusted to be in the range of not less than 2.0 and not more than 3.5, and then tapping is performed while slag containing a chromium oxide generated by the oxygen blowing is made to remain in the furnace, and a second step in which the slag containing a chromium oxide made to remain is reduced by using a carbon source or a metal source newly added into the same furnace so that chromium is recovered into molten steel. The slag basicity is determined by dividing a CaO concentration by an SiO2 concentration on a mass basis in the slag.