| 摘要 |
PROBLEM TO BE SOLVED: To very efficiently remove boron from metal silicon by a simple method at a low price. SOLUTION: In a method for removing boron from silicon, metal silicon containing boron as an impurity is melted by heating to its melting point to 2,200°C, and a solid based on silicon dioxide and a solid based on an alkali metal carbonate and/or a hydrate of the alkali metal carbonate are added to the molten silicon, thereby removing the boron in the silicon while forming slag. COPYRIGHT: (C)2005,JPO&NCIPI
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