METHOD AND APPARATUS FOR PRODUCTION OF FULLERENES Russian patent published in 1997 - IPC

FIELD: synthetic carbon materials. SUBSTANCE: invention relates to producing lubricating, accumulator, and composite materials for optical electronics, and drugs. Method consists in mixing carbon black, graphite, and wastes of stock, pressing resulting stock, and heat drying under vacuum in fullerene synthesis chamber. Heating of stock is effected to temperature of emitting surface 4300 ± 100 C using resistive, induction, magnetron, or another method. Stock is shaped in such a way as to provide countercurrent or crossing streams of carbon clusters. At the same time, produced fullerenes are separated from carbon black through evaporation from carbon black collectors by heating them to 700-900 C. Fullerenes are simultaneously separated according to their molecular weight on collectors heated to develop temperature gradient 400-480 C. Apparatus has water-cooled chamber 1 with heating element 2 in its center and, displaceable by mechanism 5, emitter 3 of carbon stock. Carbon black collectors 7,8 are made in the form of heat-resistant material containers. Fullerene collectors 11-16 are made as copper rings with vertical channels. Content of fullerenes is 5-20 wt % or higher. EFFECT: enhanced efficiency of process. 16 cl, 5 dwg, 1 tbl, 5 ex