Corrosion inhibition of closed cooling water auxiliary...

Details Corrosion inhibition of closed cooling water auxiliary... Corrosion inhibition of closed cooling water auxiliary...

C - Chemistry, Metallurgy

23

F

31/54

C23F 11/18 (2006.01) C23F 11/08 (2006.01) G21C 15/28 (2006.01)

Patent

CA 1339292

A potassium inhibitive blend and corrosion protection method of 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 nitrite, 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.

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