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

Corrosion inhibiting system

Patent ·
OSTI ID:5740262

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, an acetylenic glycol, and a saturated heterocyclic nitrogen compound mixture derived from gilsonite. The acetylenic alcohol-heterocyclic nitrogen compound mixture inhibitor system is useful, in general, in the inhibition of corrosion of metal surfaces in contact with aqueous mineral acid solution, such as hydrochloric acid, sulfuric acid, and phosphoric acid, for example in the acidizing of oil wells, in electrolytic cleaning baths, and electrolytic refining of metals. (3 claims)

Assignee:
Air Reduction Co. Inc.
Patent Number(s):
US 3591511
OSTI ID:
5740262
Country of Publication:
United States
Language:
English