Recovery of calcium hypochlorite values from filter media employ

Details Recovery of calcium hypochlorite values from filter media employ Recovery of calcium hypochlorite values from filter media employ

1976-07-08

1978-05-16

Vertiz, O. R.

Chemistry of inorganic compounds

Halogen or compound thereof

Ternary compound

23293R, 134 10, C01B 1104, B08B 700, B01J 100

Patent

active

040899357

ABSTRACT:
A process is described for recovering calcium hypochlorite values from the filter media employed in the filtration of calcium hypochlorite slurries. Deposits of Ca(OCl).sub.2 along with insoluble materials adhering to the filter media are washed with an aqueous solution of calcium hypochlorite to form a slurry of calcium hypochlorite solids. Water is used to wash the filter media to dissolve any remaining Ca(OCl).sub.2 and form a solution of calcium hypochlorite. The slurry and solution are then admixed to provide a solution of calcium hypochlorite whose concentration is controlled within the range of from about 45 to about 215 grams per liter of Ca(OCl).sub.2. This solution is employed in the production of calcium hypochlorite and is recycled to the washing step.

REFERENCES:
patent: 2007429 (1935-07-01), Klopstock
patent: 2022069 (1935-11-01), Whitmore
patent: 2320635 (1943-06-01), Mericola et al.
patent: 3152986 (1964-10-01), Bice et al.

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