METHOD OF PRODUCING CARBON NANOSTRUCTURED MATERIALS Russian patent published in 2013 - IPC C01B31/02 B28B3/00 B82Y40/00 

FIELD: chemistry.

SUBSTANCE: invention can be used in producing materials for electronics, additives for rocket fuel, catalysts, lubricating oil and polymer coatings. A climatic chamber 1 is pre-cooled by a cooling apparatus 4 to subzero temperatures. Water vapour produced by a generator 5 is then released into the chamber 1. The supercooled water vapour is artificially deposited on natural crystallisation centres in the air and ice crystals are formed, which are deposited in a collector 7 and removed from the chamber 1. A mixture of particles of carbon nanostructured materials with electric arc soot is then obtained in the apparatus 3 by arc sputtering of the starting material in an atmosphere of an inert gas. The obtained mixture is mixed with the medium of the chamber 1 and ice crystals are obtained due to selective condensation of the supercooled water vapour on particles of the carbon nanostructured materials. The end product is extracted by depositing ice crystals in the collector 7, removing from the chamber 1, heating and evaporating water. Selective condensation is carried out at atmospheric pressure and temperature in the chamber 1 of minus 5°C to minus 35°C under the condition E_i<e<E_w, where e is water vapour tension in the chamber, E_i and E_w are the saturating water vapour tension over ice and water, respectively.

EFFECT: invention provides simple and safe extraction of carbon nanostructured materials.

1 dwg