Corrosion inhibitor

Details Corrosion inhibitor Corrosion inhibitor

1973-10-09

1976-11-16

Padgett, Benjamin R.

Compositions

Preservative agents

Anti-corrosion

21 27A, 252181, C23F 1116, C02B 506

Patent

active

039923185

ABSTRACT:
A corrosion inhibitor which is comprised of a polyphosphate; a phosphonic acid or salt thereof; and a polymer of acrylic or methacrylic acid. The corrosion inhibitor is employed in aqueous systems and is capable of operating at a wide variety of conditions, including high temperature, high pH and in the presence of contaminants such as hydrogen sulfide and hydrocarbons. A typical composition is comprised of sodium hexametaphosphate, sodium salt of amino tri(methylene-phosphonic acid) and polyacrylic acid.

REFERENCES:
patent: 3336221 (1967-08-01), Ralston et al.
patent: 3620667 (1971-11-01), Zimmie
patent: 3630938 (1971-12-01), Troscinski
patent: 3699048 (1972-10-01), Krueger et al.
patent: 3751372 (1973-08-01), Zecher

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