| abstract |
PROBLEM TO BE SOLVED: To provide a silicon purification method capable of efficiently purifying silicon by improving the removal rate of boron and a silicon obtained by the method. SOLUTION: This is a method for purifying silicon by blowing a carbon-containing gas containing at least one selected from the group consisting of carbon monoxide, carbon dioxide and hydrocarbons into silicon after melting. Further, it is a silicon purification method in which at least one of carbon and silicon carbide is mixed before and / or after melting of silicon. Further, the present invention is silicon purified using the above-described method for purifying silicon. [Selection diagram] Fig. 1 |