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:
May. 20, 2008
Filed:
Feb. 09, 2001
André Feugier, Chatuzange le Goubet, FR;
André Feugier, Chatuzange le Goubet, FR;
Societe Franco-Belge de Fabrication de Combustible-FBFC, Courbevoie, FR;
Abstract
A substance in a condensed state, for example a powdered solid, is in continuous movement in the longitudinal direction () of a furnace (). A reactive gas mixture is brought into contact with the substance in the condensed state. A plurality of samples of the gaseous mixture are removed at a plurality of reference points () spaced apart from one another along the longitudinal direction () of the furnace (); each of the gas samples is analyzed outside the furnace to determine the composition of the gas mixture and for each point (), the extent of a chemical reaction between the condensed substance and the reactive gas mixture is deduced from the composition of the gas mixture at each of the reference points (). In particular, the apparatus comprises a sampling and injection rod () introduced into the furnace () and disposed in its longitudinal direction (). The invention is of particular application to modeling a rotary furnace () for converting uranium oxyfluoride into uranium oxides and for controlling the conversion reaction in the furnace ().