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:
Oct. 09, 1984
Filed:
Mar. 15, 1982
Applicant:
Inventors:
Rainer Ambros, Biblis-Wattenheim, DE;
Norbert Brenner, Burstadt, DE;
Jurgen Fischer, Essen, DE;
Gottfried Paffrath, Hohen Sulzen, DE;
Henrich J Schroeder, Biblis, DE;
Assignee:
Rheinisch-Westfalisches Elektrizitatswerk AG, Essen, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G21G / ;
U.S. Cl.
CPC ...
252632 ; 252628 ; 252631 ; 159D / ;
Abstract
Radioactive waste water containing boric acid is concentrated in an evaporator to which an alkali is added to maintain a substantially neutral pH. The boric acid is sedimented out by cooling the solution and an acid is added to the latter to increase the solids recovery by lowering the pH. The solid sediment is vacuum distilled to yield a moist powder.