Process and composition for protecting chrome steel

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

1990-08-01

1992-06-09

Kyle, Deborah L.

Compositions

Preservative agents

Anti-corrosion

252392, 252396, 252 8555, 252390, 422 14, 422 16, C23F 1112, C23F 1114, C23F 1118

Patent

active

051204711

ABSTRACT:
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.degree. 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 heterocyclic aromatic compound and an acid soluble metal from antimonium or bismuth.

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Raymond Jasinski et al., "Inhibiting HCl Corrosion of High Chrome Tubular Steels" presented at Corrosion 88, pp. 188/1 to 188/13 (Mar. 21-25, 1988).

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