Commissariat a L'energie Atomique

Compagnie Generale Des Matieres Nucleaires

Rene Cartier

Roger Boen

Hubert Frejaville

Jean-Jacques Vincent

Jean-Claude Bres

Jean-Marc Silve

Thierry Longuet

The method and oven of the invention are able to homogeneously and continuously melt about twelve kilograms of glass per hour. A microwave oven is used with the wave being monomodal and with frequency of 915 MHz. Disposed opposite the entrance (15) of the microwaves is a piston (20) continuously oscillating so as to constantly make the position of the reflection surface (21) of the electromagnetic waves vary. Thus, all the points of the melting bath surface (9) are heated. Application for the vitrification of radioactive and toxic waste.

Method and oven for homogeneously melting by microwaves with oscillation

This invention relates to a process for treating fly ash produced by a waste incinerator and containing chlorides of toxic metals, which includes a step consisting of subjecting said fly ash to a phosphating reaction, at high temperature, to convert the chlorides of toxic metals into phosphates, the phosphating reaction being obtained by the addition of a reactant comprising a phosphorus compound, characterised in that said phosphorus compound is a non-metallic compound and in that the chlorinated products obtained are discharged in a gaseous form. It also relates to an installation for implementing this process.

Treatment of fly ash produced by a waste incinerator and containing

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Le Pontet, France

Rene Cartier