Method for preventing corrosion of metal component
AssigneeKurita Water Industries Ltd.
InventorsShogo KASHIWAGI, Shintarou MORI, Kazuhisa FUJITA
Life of this patent
Estimating the term…
Abstract
Provided is a method for preventing corrosion of metal component in which cooling water and steam alternately contact, in which a phosphorus compound and/or a zinc compound is added to the cooling water and a corrosion-resistant film forming substance is added to the steam. The phosphorus compound is at least one of hexametaphosphoric acid, tripolyphosphoric acid, orthophosphoric acid, phosphonobutanetricarboxylic acid, hydroxyethylidene diphosphonic acid (HEDP), and aminotrimethylphosphonic acid.
Claims15
A method for preventing corrosion of metal component, which is a method for preventing corrosion of a metal component in which cooling water and steam alternately contact, wherein a phosphorus compound and/or a zinc compound is added to the cooling water and a corrosion-resistant film forming substance is added to the steam.
Dependencies are inferred from the claim text.