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:
Nov. 06, 1984
Filed:
Feb. 22, 1984
Applicant:
Inventors:
Assignees:
Hitachi, Ltd., Tokyo, JP;
Hitachi Plant Engineering and Construction Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25F / ; C25F / ; C25F / ;
U.S. Cl.
CPC ...
20412943 ; 20412975 ; 20412995 ; 2041445 ;
Abstract
The present invention provides a method for decontaminating metal components which have been contaminated on their surfaces with radioactive substances, characterized in that radioactivated oxide films on the metal surfaces are electrolytically removed by an alternating electrolysis method in a neutral salt solution. According to the invention, oxides and hydroxides for metals removed by the electrolytic treatment are separated from the electrolyte and solidified. The method of this invention makes it possible to positively remove the radioactivated oxide films from a base metal.