PROCESS FOR PREPARING FULLERENE-CONTAINING MATERIALS Russian patent published in 2006 - IPC C01B31/02 

FIELD: carbon materials.

SUBSTANCE: object of invention are carbon materials, in particular fullerenes and pyrolytic carbon, which can be used in manufacture of liquid media-treatment sorbents. Initial carbon-containing substance, e.g. graphite, is introduced into reaction zone, exposed to high-temperature field, sublimed, and subjected to phase transformation. Processing product is discharged in flow of inert gas, preliminarily used for flushing peripheral part of the chamber reaction zone, in the form of expanding torch with its lesser summit adjoining space of the chamber. Expansion of flow is made in downstream direction. First, additional volume of inert gas is introduced into flow tangentially to circumference of its cross-section and at an angle to its axis. Then, central portion of the flow is split and simultaneously compressed and further subjected to dilatation to form vortex zones oriented to the center of the flow. Slag is removed by evacuation of central portion of the flow. The rest of the flow used to annularly flush split zone of the central portion is subjected to further dilatation to form annular flow with restricted outside and inside regions. Fullerene-containing material is discharged from the bulk of the flow restricted by offtakes in its cross-section.

EFFECT: enhanced process efficiency.

4 dwg