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:
Jan. 21, 2020
Filed:
Jul. 28, 2009
Philippe Gruber, Villeneuve les Avignon, FR;
Olivier Pinet, Poulx, FR;
Hélène Rabiller, Toulouse, FR;
Roger Boen, Saint-Alexandre, FR;
Nicolas Bousquet, Villevieille, FR;
Jean-luc Dussossdy, Jacou, FR;
Jacques Lacombe, Pujaut, FR;
Philippe Gruber, Villeneuve les Avignon, FR;
Olivier Pinet, Poulx, FR;
Hélène Rabiller, Toulouse, FR;
Roger Boen, Saint-Alexandre, FR;
Nicolas Bousquet, Villevieille, FR;
Jean-Luc Dussossdy, Jacou, FR;
Jacques Lacombe, Pujaut, FR;
Abstract
Process for confinement of waste containing at least one chemical species to be confined, by in-can vitrification in a hot metal can into which waste and a vitrification additive are added, the waste and the vitrification additive are melted to obtain a glass melt which is then cooled, characterised in that at least one oxidising agent is also added into the metal can and in that the concentration of oxidising agent(s) expressed as oxide(s) in the glass melt is between 0.1 and 20% by mass, preferably 4 and 20% by mass, even more preferably 5 and 15% by mass, and even more preferably 10 and 13% by mass of the glass melt mass.