Corrosion inhibition with propargyl cyclohexylamine
A method is described for inhibiting the corrosion of metal surfaces in contact with aqueous mineral acid solutions, for example, in the acidizing of oil wells, electrolytic cleaning baths, and electrolytic refining of metals, as well as in metal cleaning and pickling baths. The inhibiting composition or solution contains from 0.01 to 0.5% by weight of the solution, of propargyl cyclohexylamine while the solution is in contact with the metal. A concentration between 0.05-0.5% is particularly preferred, especially for corrosive systems at elevated temperatures, e.g. in the neighborhood of 80$C. The acidic solution can be dilute or concentrated and can be of any of the concentrations used in treating metals, e.g. ferrous metals, for example 5-80%. (2 claims)
- Assignee:
- Air Reduction Co. Inc.
- Patent Number(s):
- US 3337470
- OSTI ID:
- 6323539
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020300* -- Petroleum-- Drilling & Production
ACIDIZATION
AMINES
CHEMISTRY
CORROSION INHIBITORS
CORROSION RESISTANCE
ELECTROCHEMISTRY
ELECTROLYSIS
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
LYSIS
MEDIUM TEMPERATURE
METALS
OIL WELLS
ORGANIC COMPOUNDS
PASSIVITY
PETROLEUM
SURFACES
WELLS