Corrosion inhibiting system containing alkoxylated dialkylphenol

Details Corrosion inhibiting system containing alkoxylated dialkylphenol Corrosion inhibiting system containing alkoxylated dialkylphenol

1987-12-21

1989-07-11

Terapane, John F.

Compositions

Leather or fur treating

252 8555, 252392, 564347, 564348, 422 16, E21B 4322, E21B 4102

Patent

active

048469807

ABSTRACT:
A series of oil soluble to water-dispersible, corrosion inhibiting solutions are disclosed which contain about 2 ppm to about 70%, preferably about 3 ppm to about 200 ppm, of an ethoxylated, propoxylated dialkylphenol amine represented by the formula: ##STR1## wherein R and R' are alkyl groups containing about 5 to about 12 carbon atoms, x equals about 1 to about 10, and z equals about 2 to about 20. The salt and amide reaction products of the instant alkoxylated amine and an organic acid selected from the group consisting of hydroxyacetic acid, a fatty acid, a dicarboxylic acid, a dimer-trimer acid, an acidic phosphorus containing compound, and mixtures thereof are also effective in controlling sour and sweet corrosion. A method is also disclosed for protecting metal from corrosion by contacting the metal with an effective amount of the amine, or the amine/acid or amide reaction products, in a continuous or batch treatment.

REFERENCES:
patent: 2229024 (1941-01-01), Bruson
patent: 3038856 (1962-06-01), Milligan
patent: 3404165 (1968-10-01), Budde et al.
patent: 4171279 (1979-10-01), Martin
patent: 4420414 (1983-12-01), Valone
patent: 4552686 (1985-11-01), Morris et al.
patent: 4636256 (1987-01-01), Valone
patent: 4650865 (1987-03-01), Lange et al.

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