Method for removing dibasic calcium hypochlorite scale

Details Method for removing dibasic calcium hypochlorite scale Method for removing dibasic calcium hypochlorite scale

1983-08-01

1984-11-20

Dell, John

Cleaning and liquid contact with solids

Processes

For metallic, siliceous, or calcareous basework, including...

134 221, 134 2216, 134 2217, 423474, B08B 308, C01B 1106

Patent

active

044837151

ABSTRACT:
Dibasic calcium hypochlorite scale found on the surfaces of process equipment used for the manufacture of calcium hypochlorite is removed chemically by submerging the scale in water, thereby to form an aqueous alkaline solution, and controllably adding hydrochloric acid to the alkaline solution under conditions of agitation and while maintaining the pH of the solution at at least 7, thereby to solubilize the dibasic calcium hypochlorite scale without producing substantial amounts of elemental chlorine.

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patent: 4328200 (1982-05-01), Welch et al.
patent: 4390512 (1983-06-01), Loehr et al.

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