Process for the synthesis of monochloramine
AssigneesIsochem, Centre National de la Recherche Scientifiques (C.N.R.S.), Universite Claude Bernard Lyon 1
InventorsHenri Delalu, Cécile Duriche, Jacques Berthet, Pierre Le Gars
Life of this patent
Estimating the term…
Abstract
The invention relates to a process for the synthesis of monochloramine by reaction of an ammonium chloride solution with a sodium hypochlorite solution. The sodium hypochlorite solution is basified beforehand with an inorganic base and the ratio of the concentration of ammonium chloride in the reaction medium to the concentration of sodium hypochlorite in the reaction medium is between 1 and 1.5. This ratio is preferably equal to 1.1.
Claims9
Process for the synthesis of monochloramine by reaction of an ammonium chloride solution with a sodium hypochlorite solution at −15° to 0° C., characterized in that the sodium hypochlorite solution is basified beforehand with an inorganic base and in that the ratio of the concentration of total ammonia in the reaction medium to the concentration of sodium hypochlorite in the reaction medium is between 1 and 1.5.
Dependencies are inferred from the claim text.