The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 13, 2012
Filed:
Jul. 11, 2006
Olivier Pinet, Poulx, FR;
Thierry Blisson, Pont Saint-Esprit, FR;
Agnès Grandjean, Saint-Marcel-de-Careiret, FR;
Sophie Schuller, Chusclan, FR;
Olivier Pinet, Poulx, FR;
Thierry Blisson, Pont Saint-Esprit, FR;
Agnès Grandjean, Saint-Marcel-de-Careiret, FR;
Sophie Schuller, Chusclan, FR;
Commissariat a l'Energie Atomique, Paris, FR;
Abstract
The present invention relates to a process for the manufacture of a glass frit for the containment by vitrification of a material comprising at least one oxidizable or reducible chemical species, and also to a process for the containment of said material by vitrification. The process for the manufacture of the glass frit comprises a step of incorporating into a raw glass frit at least one redox couple, the nature and the amount of which make it possible to maintain said at least one chemical species in its oxidized or reduced state. The containment process comprises mixing and hot melting the resulting glass frit and the material to be contained. The present invention makes it possible to optimize the containment of pollutants such as radionucleides, metals and metalloids. The material may be nuclear waste or a material derived from the incineration of household refuse.