Inhibition of pitting corrosion

Details Inhibition of pitting corrosion Inhibition of pitting corrosion

1978-08-02

1980-12-23

Padgett, Benjamin R.

Compositions

Preservative agents

Anti-corrosion

106 1412, 106 1413, 106 1416, 148 615R, 252 855E, 252180, 422 15, 422 16, 422 17, 422 18, C23F 1116, C23F 1112, C23F 1114

Patent

active

042409250

ABSTRACT:
This invention relates to a process of inhibiting pitting corrosion which is characterized by the use of synergistic mixtures of organic anodic and cathodic corrosion inhibitors. These synergistic mixtures effectively inhibit pitting corrosion in highly oxygenated systems without the conventional use of heavy metals such as zinc (Zn) or chromium (Cr). This invention also relates to the use of alkoxysilyl alkylene polyamines as pitting corrosion inhibitors.

REFERENCES:
patent: 3716569 (1973-02-01), Redmore et al.
patent: 3803047 (1974-04-01), Hwa
patent: 3816184 (1974-06-01), Redmore et al.
patent: 4014814 (1977-03-01), Zecher
patent: 4033896 (1977-07-01), Mitchell et al.
patent: 4072626 (1978-02-01), Finney
patent: 4134959 (1979-01-01), Merke et al.

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