Patent ID: 6558308
Filing Date: 2003-05-06
Classification: B09B,C03B,G21F,Y02P

Abstract:
A process for vitrifying waste in a disposable closed canister comprising, a. drying and pelletizing waste into particles of a diameter between 10 and 10,000 microns; b. adding energy substantially by radiation, rather than by conduction or convection, to the inside of a disposable canister in a single stage heating process such that the temperature inside the canister is above the melting point of the waste; c. adding a sufficient quantity the waste particles to the disposable canister to permit the maintenance of a melted waste layer at the bottom of the canister, wherein the initial temperature of the waste particles prior to introduction into the canister is below the melting point of the waste; d. until the canister is filled, adding more waste particles and continue adding radiant energy inside the canister above the melt surface in the canister to maintain the temperature of the melt layer at a value higher than the melting point of the waste while permitting the formation of a solid vitrified product below the melted waste layer at the bottom of the canister; and, e. removing all heating sources to allow the waste in the canister to cool to ambient temperature.