Process for the production of highly pure concentrated solutions of potassium hypochlorite
AssigneeOlin Corporation
InventorsBudd L. Duncan, William O. Flowers
Life of this patent
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Abstract
A process for producing potassium hypochlorite solutions by admixing a hypochlorous acid solution having a concentration of 35 percent or greater by weight of HOCl with an aqueous slurry of potassium hydroxide containing 35 percent by weight or greater of KOH at a temperature below about 45.degree. C. The potassium hypochlorite solution produced has a concentration of at least 25 percent to about 60 percent by weight of KOCl.
Claims13
A process for producing potassium hypochlorite solutions which comprises admixing at a temperature below about 45.degree. C. a hypochlorous acid solution having a concentration of 35 percent or greater by weight of HOCl with an aqueous slurry of potassium hydroxide containing 35 percent by weight or greater of KOH selected to produce a potassium hypochlorite solution containing 30 percent or greater by weight of KOCl.
A continuous process for producing potassium hypochlorite solutions which comprises:
- a) adding a hypochlorous acid solution having a concentration of 35 percent or greater by weight of HOCl to an aqueous solution or slurry of potassium hydroxide;
- b) admixing the hypochlorous acid with the slurry of potassium hydroxide to form a solution of potassium hypochlorite while maintaining the temperature of the reaction mixture in the range of from about 0.degree. to about 45.degree. C.;
- c) adding solid potassium hydroxide to form a potassium hypochlorite solution containing 30 percent or greater by weight of potassium hypochlorite.
A potassium hypochlorite solution containing from about 30 to about 60 percent by weight of KOCl and having a density in the range of from about 1.27 to about 1.6 g/ml at a temperature of about 0.degree. C.
Dependencies are inferred from the claim text.