Process and composition for protecting chrome steel

Details Process and composition for protecting chrome steel Process and composition for protecting chrome steel

C - Chemistry, Metallurgy

23

F

C23F 11/12 (2006.01) C09K 8/54 (2006.01) C23F 11/04 (2006.01) C23F 11/14 (2006.01)

Patent

CA 2048208

ABSTRACT OF THE DISCLOSURE A composition and method for inhibiting the corrosion of steel containing greater than about 9% chromium in the presence of at least one mineral acid, especially at temperatures above 250°F. The composition is made of a corrosion inhibitor selected from phenyl ketone, phenyl ketone with a quaternary salt of a nitrogen- containing heterocyclic aromatic compound, or cinnamaldehyde with a quaternary salt of a nitrogen-containing aromatic compound and an acid soluble metal from antimonium or bismuth.

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