Method and composition for inhibiting corrosion and...

Details Method and composition for inhibiting corrosion and... Method and composition for inhibiting corrosion and...

C - Chemistry, Metallurgy

23

F

31/47

C23F 11/16 (2006.01) C02F 5/14 (2006.01) C23F 11/08 (2006.01)

Patent

CA 1178801

Abstract of the Disclosure A corrosion inhibition and scale control method and composition are disclosed. The method comprises, adding to a cooling water system, for which protection is desired, a water soluble zinc salt, a water soluble sulfonated styrene/maleic anhydride (SSMA) copolymer and an organo-phosphorus acid compound. A corrosion inhibitor compound such as a 1,2,3-triazole or thiazole compound may be added to afford additional protection. Molybdate salts may also be included as optional corrosion inhibitors. A cellulose gum material and/or water soluble acrylic acid polymer or copolymer may be conjointly used with the SSMA copolymer.

417081

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