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Advances in Molten Salts

ISSN:
1-56700-142-4 (Print)

Pyrochemical processes in advanced nuclear programs - with emphasis on management of long-lived radionuclides

T Ogawa
Japan Atomic Energy Research Institute, Tokai-mura, Naka-gun, Ibaraki-ken, 319-1106 Japan

Minoru Igarashi
Severe Accident Research Laboratory, Department of Reactor Safety Research, Japan Atomic Energy Research Institute, Tokai-mura, Naka-gun, Ibaraki-ken, 319-11, Japan

Abstract

The reprocessing plant with the pyrochemical technology may be economically competitive even at a smaller production scale. This is of a particular advantage in considering its application to the transmutation of long-lived radioactive wastes. However, it also has drawbacks such as an inherent difficulty in nuclear materials accounting. Taking examples of Japanese concepts of transmutation of MA, requirements and current efforts on thermodynamic database are discussed.