C - Chemistry – Metallurgy – 23 – F
Patent
C - Chemistry, Metallurgy
23
F
C23F 11/08 (2006.01) C02F 5/10 (2006.01) C02F 5/14 (2006.01) C23F 11/12 (2006.01) C23F 11/167 (2006.01) C23F 11/173 (2006.01) C23F 14/02 (2006.01)
Patent
CA 2740635
Methods and compositions are provided for corrosion inhibition treatment of aqueous systems such as cooling water systems The methods include conjoint use of a polivalent metal ion such as Al or Mn and a corrosion inhibitor/deposit control agent (DCA) to the water system. The corrosion inhibitor DCA agent may be an organic compound such as a hydroxyacid, phosphonocarboxylic acid, polyhydroxysuccinic acid, or polymaleic acid or anhydride.
La présente invention concerne des procédés et des compositions pour le traitement anticorrosion de systèmes aqueux tels que des systèmes d'eau de refroidissement. Les procédés consistent à utiliser conjointement un ion métallique polyvalent tel que lion Al ou Mn et un inhibiteur de corrosion/agent de contrôle des dépôts (DCA) dans le système aqueux. L'agent DCA inhibiteur de corrosion peut être un composé organique tel qu'un hydroxyacide, un acide phosphonocarboxylique, un acide polyhydroxysuccinique, ou un acide ou anhydride polymaléique.
Crovetto Rosa
Deck Philip D.
Pierce Claudia C.
Company General Electric
Craig Wilson And Company
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