Service descaler for aqueous systems

Details Service descaler for aqueous systems Service descaler for aqueous systems

1980-02-04

1981-07-21

Weinblatt, Mayer

Compositions

Water-softening or purifying or scale-inhibiting agents

Plant or organic material containing

252175, 252 80, 252 81, 210701, C02F 510

Patent

active

042797683

ABSTRACT:
A scale removing formulation designed to remove scale build-up on metallic working surfaces, the scale being conventional and composed of calcium salts and iron oxides from aqueous systems such as boilers, cooling towers, heat exchangers, and the like, while those systems are in service. The present invention utilizes a synergistic blend of a chelant, polymeric conditioners and a gluconate. Principle components of the formulation of the invention include a chelant, polymeric conditioners, a gluconate, a triazole, and sodium sulfite. The gluconate is utilized as an inhibitor for ferrous metal surfaces, with the triazole being utilized as an inhibitor for non-ferrous metal surfaces. The sodium sulfite is employed for removal of dissolved oxygen.

REFERENCES:
patent: 3463730 (1969-08-01), Booth et al.
patent: 3956164 (1976-05-01), Walker et al.
patent: 3962109 (1976-06-01), Oberhofer et al.
patent: 4072607 (1978-02-01), Schiller et al.

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