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:
Apr. 07, 1992
Filed:
May. 24, 1990
Applicant:
Inventors:
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C25B / ; C23G / ;
U.S. Cl.
CPC ...
204 93 ; 204104 ; 204130 ; 134-1 ; 134-3 ; 156627 ;
Abstract
This invention relates to a chemical method of effectively decontaminating metallic wastes that have been contaminated by radioactive substances and which have resulted from the demolition of nuclear power plants or reactors in operation. The method is that when the increase in the amount of dissolution of metal ions from the wastes causes the potential of the aqueous sulfuric acid to increase beyond a certain level, the dissolved metal ions are reduced electrolytically to control the potential of said aqueous sulfuric acid to become lower than said certain level.