Riken Corporation

Yoshiko Itoh

Yasuyuki Nagashima

Akira Goto

Yasushige Yano

Masayuki Kase

Toshio Hyodo

Fuminori Saito

Toshikazu Kurihara

Katsumi Senoo

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.

Method of separating and collecting 18F in 18O water

Growing community of inventors

Saitama, Japan

Yoshiko Itoh