| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and an apparatus for continuously isolating specific fullerene in an industrial scale without requiring a large quantity of energy. SOLUTION: The specific fullerene in a crystal phase is isolated by charging a solution of fullerene in a crystallization column 12 composed of a vertically long vessel, evaporating and removing a solvent in the upper part of the crystallization column 12 by heating the upper part of the crystallization tower, preferentially depositing the specific fullerene to settle in the lower part of the crystallization column 12, condensing the evaporated and removed solvent in a condenser 14, returning part or whole of the removed solvent to the lower part of the crystallization column 12 to cause rising flow in the crystallization column 12 to bring the crystal phase into counter-currently contact with the solvent phase to increase the purity of the specific fullerene in the crystal phase. COPYRIGHT: (C)2004,JPO&NCIPI
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