FIELD: production of powder of synthetic diamonds. SUBSTANCE: ozone- air mixture for oxidizing of graphite is passed through charge of artificial diamonds, in addition to that charge is heated till 120-400 C. Device except container for charge and heater has generator of ozone-air mixture and additional container for charge coupled with the first container and having clear opening for gas which is bigger that the first container. Device is provided additionally with heater for additional container. EFFECT: simplified process and ecological clean owing to preparation and utilization of ozone as graphite oxidant in single technological process. 3 cl, 1 dwg
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