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. 22, 2001
Filed:
May. 05, 1999
Applicant:
Inventors:
Assignee:
Comurhex S.A., Velizy Villacoublay Cedex, FR;
Primary Examiner:
Int. Cl.
CPC ...
C01B 2/120 ; C01B 2/140 ; C01G 4/300 ;
U.S. Cl.
CPC ...
C01B 2/120 ; C01B 2/140 ; C01G 4/300 ;
Abstract
A method for recovering nitrate ions as nitric acid from nuclear industry effluents by thermally decomposing the nitrate ions in solution, and recovering the NO,vapors generated by the heat treatment in an aqueous medium. The resulting nitric acid may be recycled in the nuclear industry.