Process for concentrating fullerenes having more than 70...

Details Process for concentrating fullerenes having more than 70... Process for concentrating fullerenes having more than 70...

C - Chemistry, Metallurgy

01

B

C01B 31/02 (2006.01)

Patent

CA 2149954

The invention relates to a process for concentrating fullerenes having more than 70 carbon atoms, which comprises a) applying a benzene or toluene solution of a crude fullerene extract to a chromatographic separation column charged with coke, anthracite and/or graphite as support material and subsequently b) desorbing from the separation column the fullerenes having more than 70 carbon atoms which are absorbed on the separation column using a polyalkylated and/or monohalogenated or polyhalogenated aromatic eluant.

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