Inhibition of carbon dioxide corrosion of metals

Compositions – Preservative agents – Anti-corrosion

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25238961, 25238962, 507939, 422 16, C23F 1114, C23F 11173

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056076231

ABSTRACT:
Polyaspartic acid and its salts ms used as a carbon dioxide corrosion inhibitor for ferrous metal surfaces in contact with a substantially acidic corrosive aqueous saline environment. In particular, carbon dioxide corrosion of mild steel in brine substantially free of dissolved oxygen can be effectively inhibited under mild to moderate dynamic flow use conditions by relatively low concentrations of polyaspartic acid.

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