Process for producing chloroisocyanurate compounds with concentrated salt-free hypochlorous acid
AssigneeOlin Corporation
InventorsWayne H. Hammond, John H. Shaffer, John A. Wojtowicz, Leslie R. Ward, Joseph M. Borcz
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Abstract
A process for producing a chloroisocyanuric acid compound which comprises reacting cyanuric acid with a chlorinating agent consisting of an aqueous solution of hypochlorous acid substantially free of ionic impurities having a pH of less than about 2. The process produces chloroisocyanuric acid compounds with reduced volumes of effluent solutions and significantly reduced amounts of gas released during operation. The novel process for producing chloroisocyanuric acid compounds can employ solid forms of cyanuric acid as a reactant.
Claims11
A process for producing a chloroisocyanuric acid compound which comprises reacting cyanuric acid with a chlorinating agent consisting of an aqueous solution of hypochlorous acid substantially free of ionic impurities having a pH of less than about 2 at a concentration of from about 35 to about 60 percent by weight of HOCl.
A process for producing a chloroisocyanuric acid compound which comprises reacting solid particles of cyanuric acid with a chlorinating agent consisting of an aqueous solution of hypochlorous acid substantially free of ionic impurities having a pH of less than about 2 at a concentration of from about 35 to about 60 percent by weight of HOCl.
A process for producing an alkali metal dichloroisocyanurate which comprises reacting cyanuric acid with a chlorinating agent consisting of an aqueous solution of hypochlorous acid substantially free of ionic impurities having a pH of less than about 2 at a concentration of from about 35 to about 60 percent by weight of HOCl while maintaining the oxidation-reduction potential in the range of from about -830 to about -880 millivolts to produce dichloroisocyanuric acid, and reacting the dichloroisocyanuric acid with an alkali metal hydroxide to produce an alkali metal dichloroisocyanurate.
Dependencies are inferred from the claim text.