Corrosion inhibition of closed cooling water auxiliary system fo

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

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G21F 900, G21C 1928

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active

049684787

ABSTRACT:
A potassium inhibitive blend and corrosion protection method for closed cooling water systems. The closed cooling system circulates about 35 to 40 gallons of corrosion inhibitor per 10,000 gallons of circulating water. The corrosion inhibitor contains potassium molybdate, potassium nitride, and potassium borate in an aqueous solution so that if leakage of the circulated water occurs, the leaked corrosion inhibitive liquid does not cause dangerous radiation in any amounts dangerous to the environment. The potassium molybdate and potassium nitrate each constitute about 12% of the aqueous solution. Potassium based borate at 2 to 2.5%, ethylene glycol preferably at about 10%, and benzotriazole or tolyltriazole of about 0.4% with up to 1% polymeric scale suppressant are also included in the corrosion inhibitive blend.

REFERENCES:
patent: 4313837 (1982-02-01), Vukasovich et al.
patent: 4349457 (1982-09-01), Orillion
patent: 4663053 (1987-05-01), Geiger
patent: 4717495 (1988-01-01), Hercamp et al.
patent: 4728452 (1988-03-01), Hansen
patent: 4913849 (1990-04-01), Husain

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