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:
Feb. 18, 1997
Filed:
Mar. 18, 1994
Applicant:
Inventors:
Philippe Lucas, Paris, FR;
Jean-Paul Moulin, Bois d'Arcy, FR;
Olivier Halna du Fretay, Pont Saint Esprit, FR;
Joseph Roussel, Beaumes de Venise, FR;
Jany Petit, Serignan Du-Comtat, FR;
Claude Saintouil, Suze La Rousse, FR;
Claude Toussaint, Orange, FR;
Assignee:
Cogema -Compagnie Generale Des Matieres Nucleaires, Velizy Villancoublay, FR;
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; B01D / ;
U.S. Cl.
CPC ...
203 12 ; 159D / ; 159D / ; 203 13 ; 203 78 ; 203 80 ; 203 86 ; 4233942 ; 423488 ;
Abstract
A process for treating an aqueous solution mainly containing nitric acid and hydrofluoric acid. The process involves distilling to provide an aqueous solution concentrated in nitric acid and hydrofluoric acid for the separation thereof, then separating by distillation.