METHOD OF THE CHROMATOGRAPHIC CONCENTRATION OF THE FULLERENES Russian patent published in 2007 - IPC C01B31/02 G01N30/00 

FIELD: chemical industry; methods of the chromatographic concentration of the fullerenes.

SUBSTANCE: the invention is pertaining to the field of the chemical industry. The mixture of the fullerenes dissolved in the organic solvent is gated through the column with the carbon-containing sorbent. At that as the sorbent they use the ground gray iron. After saturation of the ground gray iron with the mixture of the fullerenes they first eluate the fullerenes (С₆₀ and С₇₀₎ with o- xylene; then eluate the higher fullerenes (С₇₆ and further) with 0- dichlorobenzene into the separate enriched by them fraction. The invention ensures the increased output of the higher fullerenes extracted into the enriched by them fraction and may be easily realized, since it is based on the usage of the accessible product - gray-iron and the dissolvents traditionally used in the fullerenes production process.

EFFECT: the invention ensures the increased output of the higher fullerenes, simplicity of the method realization, usage of the accessible product-gray-iron and the dissolvents traditionally used in the fullerenes production process.

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