In this study, using strontium sulfate (SrSO 4 ) recovered from magnetite ore in Hongcheon, the Black Ash process was used to produce strontium carbonate (SrCO 3 ). In the carbothermic reaction step, SrSO 4 was reacted with carbon (C) at 1273 K under Ar gas atmosphere using a gas-tight quartz reactor to produce strontium sulfide (SrS). Afterward, water leaching of the residues produced from the carbothermic reaction at 353 K and carbonation of the leaching solution using sodium carbonate (Na 2

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... O 3 ) at 298 K were conducted to produce SrCO 3 . The results of this study demonstrate the feasibility of the production of SrCO 3 via the Black Ash process using domestic magnetite ore containing strontium (Sr).