PURPOSE: To improve separation efficiency by using diethylene glycol monomethyl ether as an exchanging liq. in the process in which hydrogen atom of a working material is exchanged with hydrogen isotope of starting water, the working material is dissociated by laser irradiation, the dissociated product containing hydrogen isotope is separated and recovered.
CONSTITUTION: In isotope exchanging reaction stage, the exchanging liq. dissolving the working material is brought into contact with the steam of starting water in the presence of an alkaline catalyst, hydrogen atom of the working material is exchanged with hydrogen isotope of starting water, then the exchanging liq. containing the working material is brought into contact with gaseous working material, and the gaseous working material is allowed to dissolve in the exchanging liq., and the working material after exchanging reaction is transferred to gas phase. In dissociation stage, gaseous working material containing hydrogen isotope is dissociated selectively by laser irradiation. In recovering stage of the material containing dissociated hydrogen isotope and in isotope exchanging reaction stage, diethylene glycol monomethyl ether is used as the exchanging liq.
| JPS63178831 | METHOD FOR REMOVING IMPURITY |
| JPH0368422 | METAL VAPOR GENERATOR |
FUJIMURA YASUSHI
SHIBUYA MAMORU
