Radioactivity reduction method of a nuclear power plant and a nu

Induced nuclear reactions: processes – systems – and elements – Reactor protection or damage prevention – Corrosion or damage prevention

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G21D 308

Patent

active

049275984

ABSTRACT:
The primary cooling water in a primary cooling water recirculation path of a nuclear power plant is heated and recirculated in the presence of beryllium, and a film of nickel ferrite and/or cobalt ferrite is formed on the surface of pipings and various apparatus and devices connecting with the primary cooling water. The beryllium is injected in the form of beryllium ion into the primary cooling water, or is disposed in the form of beryllium or beryllium-containing alloy in the piping and/or the various apparatus and devices.

REFERENCES:
patent: 3361636 (1968-01-01), Bagge
patent: 3663725 (1972-05-01), Pearl
patent: 3960655 (1976-06-01), Bohanan et al.
patent: 3976541 (1976-08-01), Stiteler et al.
patent: 4042455 (1977-08-01), Brown
patent: 4722823 (1988-02-01), Honda et al.
patent: 4764338 (1988-08-01), Uchida et al.

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