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:
Jul. 16, 2002
Filed:
Jul. 31, 2000
Bruno Classen, Mareil sur Mauldre, FR;
Bruno Le Rolland, Oinville sur Montcient, FR;
Pierre Colombet, Longnes, FR;
Ciments Francais, Puteaux, FR;
Abstract
Waste is rendered inert, by cladding the waste in a cement base hydraulic binder including sulfoaluminate cement comprised by at least 30% by weight of the phase 3CaO.3Al O .CaSO (C A S). The hydraulic binder can be either essentially constituted by sulfoaluminate cement, or instead comprise one or several zeolites. A pre-mix is provided for practicing the process, containing at least one zeolite and at least 15% of sulfoaluminate cement, comprised of at least 30% of the phase 3CaO.3Al O .CaSO (C A {overscore (S)}). This pre-mix is preferably used for cladding residues of the incineration of household waste.