Patent ID: 8287715

Claim:
A process for recovering boron from a boron-containing material, comprising the steps of: a) forming a molten electrolyte comprising a boron-containing compound and an eutectic mixture comprising one of MgF 2 â€”NaMgF 3 â€”LiF or NaFâ€”NaMgF 3 â€”LiF; and b) recovering elemental boron by electrolyzing said molten electrolyte, wherein said boron-containing compound is selected from the group of boron-containing compounds consisting of B 2 O 3 , NaBF 4 , NH 4 BF 4 , KBE 4 , LiBF 4 , CsBF 4 , boric acid and its salts, sodium borate, lithium borate, potassium borate, cesium borate, and mixtures thereof.