Composition and method for inhibiting chloride-Induced corrosion

Liquid purification or separation – Processes – Preventing – decreasing – or delaying precipitation,...

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252181, 252396, 422 17, C02F 510

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active

059482672

ABSTRACT:
The present invention relates to a composition and method for inhibiting chloride-induced corrosion and limescale formation on ferrous metal surfaces and alloys in process systems in which aqueous solutions are concentrated, the composition containing a corrosion inhibiting amount of at least one polycarboxylic acid and/or its alkali metal or alkaline earth metal salts and a sufficient amount of a base to bring the water to a pH effective to inhibit both chloride-induced corrosion and limescale formation.

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