At present, the cleanliness of the human environment and the improvement of the environmental performance of the technologies used by them are becoming increasingly important. In this regard, the problem of high-quality waste processing has arisen. Existing industrial methods for the destruction, neutralization and disposal of waste (landfills, sorting, earth filling, incineration, biothermal composting do not meet the requirements of environmental legislation. In this work, an atmospheric electric arc reactor was developed for waste disposal.
The paper presents the results of experimental studies on the implementation of electric arc synthesis of boron carbide using carbon with different morphology and origin as a feedstock: carbon fibers, flake graphite, carbon obtained by pyrolysis of plant waste, namely, pine sawdust and cedar nuts husks. A feature of the electric arc method used is its implementation using an original plasma reactor using atmospheric air as a working gas medium. Oxidation of feedstock and synthesis products in the working cycle of the reactor is prevented due to the generation of CO and CO2 gases in the reaction zone. The possibility of obtaining a material containing micron and submicron boron carbide crystals in a graphite matrix has been experimentally shown. Also, the paper presents information about the features of the oxidation processes of the obtained materials in comparison with commercial samples of boron carbide. Keywords: boron carbide, electric arc synthesis, carbon fibers, flake graphite, carbon of plant origin.
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