SILICON REFINING APPARATUS AND SILICON REFINING METHOD

PROBLEM TO BE SOLVED: To prevent molten silicon from being contaminated caused by dropping of an impurity condensate from an impurity capturing device arranged in an upper side of a crucible, in a silicon refining method by vacuum melting.SOLUTION: This silicon refining apparatus is arranged with the crucible 4 for storing the molten silicon 3 and a heating means 5 for heating the crucible 4, in an inside of a treating chamber 2 equipped with a vacuum pump 1, and is arranged further with the impurity capturing device having an impurity condensing part for cooling an impurity vapor evaporated from a liquid face of the molten silicon, to be condensed, and a contamination preventive device having an impurity receiving part for receiving an impurity, when the impurity captured by the impurity capturing device drops, to prevent the molten silicon from being contaminated.