METHOD OF EXTRACTING FULLERENES FROM FULLERENE-CONTAINING SOOT (VERSIONS) Russian patent published in 2013 - IPC C01B31/02 B01D11/02 B82Y40/00 

FIELD: chemistry.

SUBSTANCE: invention can be used in chemical industry. Fullerene-containing soot is obtained first. The soot is then mixed with a fullerene solvent in order to extract fullerenes from the soot and fullerene solution is filtered in order to separate from spent soot. The solvent used is α-bromonaphthalene. In order to separate C₇₀ fullerene, first extraction is carried out using such aromatic solvents as o-dichlorobenzene or o-xylene, and second extraction of spent soot is then carried out by mixing with α-bromonaphthalene (α-C₁₀H₇Br). When mixing with α-bromonaphthalene, the soot is heated to temperature not below 40°C.

EFFECT: high degree of extraction of fullerenes from soot and providing extraction of the selected fullerene first.

3 cl