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:
Dec. 07, 2004
Filed:
Aug. 09, 2002
Toshio Hyodo, Tokyo, JP;
Yoshiko Itoh, Saitama, JP;
Fuminori Saito, Tokyo, JP;
Yasuyuki Nagashima, Tokyo, JP;
Toshikazu Kurihara, Ibaraki, JP;
Akira Goto, Saitama, JP;
Masayuki Kase, Saitama, JP;
Yasushige Yano, Saitama, JP;
Katsumi Senoo, Saitama, JP;
Riken, Saitama, JP;
Abstract
A method of separating and recovering F from O water at high purity and efficiency while maintaining the purity of the O water. By using a solid electrode ( ) as an anode and a container (electrodeposition vessel) ( ) made of platinum as a cathode, F in a solution ( ) is electrodeposited on the solid electrode surface by applying a voltage. Then, by using the solid electrode ( ) on which F is electrodeposited as a cathode and a container (recovery vessel) ( ) holding pure water therein as an anode, F is recovered in the pure water by applying a voltage of opposite polarity to that of the electrodeposition. In this process, little O water is lost. The initial concentration of the O water is maintained even after the electrodeposition of F, so that the O water can be repeatedly used as an irradiation target for production of F.