Composition and method for removing insoluble scale deposits fro

Details Composition and method for removing insoluble scale deposits fro Composition and method for removing insoluble scale deposits fro

1973-12-03

1976-04-20

Guynn, Herbert B.

Compositions

Leather or fur treating

166312, 252 86, 252 87, C09B 502, C09B 506, E21B 3700

Patent

active

039518272

ABSTRACT:
Compositions comprising aqueous solutions of chelating compounds and synergistic inorganic fluorides are effective agents for removing insoluble scale deposits such as gypsum, anhydrite and precipitated limestone or lime scale from the surfaces contained within oil wells and associated equipment and from the interior surfaces of boilers, heat exchangers and the like.

REFERENCES:
patent: 2877848 (1959-03-01), Case
patent: 3481400 (1969-12-01), Kerver et al.
patent: 3660287 (1972-05-01), Quattrini
patent: 3684720 (1972-08-01), Richardson

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