THERMODYNAMIC MODELING OF RADIONUCLIDE BEHAVIOR DURING HEATING (BURNING) OF RADIOACTIVE GRAPHITE IN THE NITROGEN ATMOSPHERE

Thermodynamic modeling of radioactive graphite – nitrogen has been carried out using a software package TERRA. It has been established that the radioactive plutonium is present in the form of condensed compounds PuC2, PuC, Pu2C3 and vapors of Pu; radioactive uranium — in the form of condensed UC, UC2, U2C3 and vapors of U; radioactive chlor — in the form of vaporous compounds of Cl, CCl, ClCN, Cl2; radioactive beryllium — as condensed Be3N2, and vaporous BeCl2, BeCl, Be, BeC2; radioactive calcium — in the form of condensed Ca3N2, CaCl2, CaC2 and vaporous Ca, CaCl, CaCl2; radioactive nickel — in the form of condensed Ni and vaporous Ni, Ni3C; radioactive strontium — in the form of condensed SrCl2, SrC2 and vaporous Sr, SrCl, SrCl2; radioactive americium — condensed and vaporous Am; radioactive cesium — in the form of condensed CsCl and vaporous compounds of Cs and CsCl. The product of burning of carbon at temperatures above 2400 K is vapors of CN, C2N2 and gas cluster C3.