ДЕМИНЕРАЛИЗАЦИЯ КАМЕННОГО УГЛЯ ПЛАЗМОХИМИЧЕСКИМ МЕТОДОМ И СИНТЕЗ ИСКУССТВЕННОГО ГРАФИТА

Abstract

This article examines the possibility of producing artificial graphite using plasma refining of carbon feedstock (coal), a more environmentally friendly technology that does not use chemical reagents. The method is based on carbon’s ability to sublimate at temperatures above 2000°C, along with impurities of chemical elements, and desublimate upon cooling, becoming one of the first to form high-purity graphite on the surface of a graphite catalyst. Impurities in a gaseous state are separated from the resulting graphite. In the lower-temperature graphitization zones of the reactor, the impurities evaporate or are sorbed by the resulting graphite. Separating graphite at the maximum carbon desublimation temperature from graphite in the lower-temperature zones, where the graphite sorbs the impurities, is a key feature of this technical solution.