Patent ID: 9522199
Filing Date: 2016-12-20
CPC Classification: A61K,B82Y,C01B,Y10S

Claim Text:
1. A method for recovering an endohedral metallofullerene from crude fullerenes, comprising: adding a Lewis acid comprising at least one of titanium halide and tin halide to a reaction solution formed by dissolving the crude fullerenes in a solvent, thereby forming a solution comprising a complex of the endohedral metallofullerene and the Lewis acid; filtering the solution comprising the complex of the endohedral metallofullerene and the Lewis acid to separate the complex; and removing the Lewis acid from the separated complex by washing said complex to obtain the endohedral metallofullerene, wherein a reaction time of the endohedral metallofullerene and the Lewis acid is not less than 0.2 seconds and less than 1 hour.