Polyamine-polyglycol inhibitor for steel pickling

Details Polyamine-polyglycol inhibitor for steel pickling Polyamine-polyglycol inhibitor for steel pickling

1988-01-27

1989-10-10

Lieberman, Paul

Compositions

Compositions containing a single chemical reactant or plural...

Organic reactant

252146, 252173, 25217421, 252390, C23F 1104, C23F 1114

Patent

active

048730149

ABSTRACT:
The corrosion of steel during acid pickling is inhibited by the use of an acid pickling composition containing hydrochloric acid, water and a mixture of a polyalkylene polyamine and a polyglycol in an amount sufficient to inhibit corrosion. A 75:25 ratio of tetraethylene pentamine to polypropylene glycol is particularly effective as a corrosion inhibitor.

REFERENCES:
patent: 2649415 (1953-08-01), Sundberg et al.
patent: 3211667 (1965-10-01), Coyne et al.
patent: 3277104 (1966-10-01), Riggs
patent: 3385734 (1968-05-01), Barkley et al.
patent: 3458453 (1969-07-01), Kautsky
patent: 3475346 (1969-10-01), Teumae
patent: 3676354 (1972-07-01), Kaneko et al.
patent: 3790496 (1974-02-01), Hausler
patent: 4670186 (1987-06-01), Quinlan

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