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U.S. Department of Energy
Office of Scientific and Technical Information

Corrosion inhibitor

Patent ·
OSTI ID:5660101

In the use of aqueous acidic baths to treat metals, additives or inhibitors in the baths are desirable to prevent or inhibit corrosion or erosion of the metal surfaces. Similarly, in the field of oil-well acidizing, it is necessary to use inhibitors in order to prevent corrosion of the oil-well equipment by the aqueous acid solutions employed. Various other industrial operations also involve contact between an aqueous acidic solution and a metal, and an inhibitor must be used in order to minimize corrosion and/or consumption of the metal by such contact. Aqueous acid solutions are inhibited against corrosion of metals, especially ferrous metals, by incorporation of a corrosion-inhibiting system composed of a combination of an acetylenic carbinol and a saturated heterocyclic nitrogen compound mixture derived from gilsonite. (3 claims)

Assignee:
Air Reduction Co. Inc.
Patent Number(s):
US 3591512
OSTI ID:
5660101
Country of Publication:
United States
Language:
English