Asahi Kasei Kogyo Kabushiki Kaisha

Kazuo Okuyama

Tetsuya Miyake

Kunihiko Takeda

Yasuki Shimamura

Hatsuki Onitsuka

Norito Ogawa

Motohisa Asano

A process for the separation of one rare earth metal from another in a mixture of rare earth metals by chromatographic displacement using a complexing agent and a cation exchanger, which process comprises using a cation exchanger having a micro-void volume void ratio of 0.5 to 0.95, preferably 0.5 to 0.88.

Separation of rare earth metals using a cation exchanger

A process for continuously separating uranium isotopes by oxidation-reduction reaction using an anion exchanger comprising the steps of subjecting an eluant containing a deactivated oxidizing agent and a deactivated reducing agent as a mixture to oxidation to regenerate the deactivated oxidizing agent, separating the regenerated oxidizing agent from the eluant with an anion exchanger and reusing the regenerated oxidizing agent for continuing the separation of uranium isotopes.

Continuous separation of uranium isotopes

Growing community of inventors

Yokohama, Japan

Kazuo Okuyama