Process for conditioning metal surfaces

Details Process for conditioning metal surfaces Process for conditioning metal surfaces

C - Chemistry, Metallurgy

23

F

117/214, 204/97

C23F 11/167 (2006.01) C02F 5/14 (2006.01) C23C 22/83 (2006.01) C23F 11/08 (2006.01)

Patent

CA 1250498

Abstract of Disclosure Process for Conditioning Metal Surfaces Process for conditioning metal surfaces to inhibit their corrosion and/or to inhibit scale deposition thereon by treating said surfaces: A) prior to contact with a corrosive or scaling environment, with 2-hydroxy-phosphonoacetic acid or a metal salt thereof and optionally with a metal ion component b) as hereinafter defined B) during contact with an aqueous system capable of corroding said metal surfaces or depositing scale thereon, with a combination of: a) 2-hydroxy-phosphonacetic acid or a water-soluble salt thereof; and b) a metal ion which enhances, synergistically, the metal conditioning effected, individually, by 2-hydroxy-phosphonoacetic acid and the metal ion.

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