C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
C01B 11/20 (2006.01) C02F 1/76 (2006.01)
Patent
CA 2485228
The invention is a process for the preparation of stabilized aqueous solutions of alkali hypobromites, which comprises reacting a concentrated alkali hydroxide aqueous solution with bromine, allowing the mixture to react, adding to the reaction product, which is a non-stabilized solution, an aqueous solution of a sulfamic compound, such as sodium sulfamate, and thus forming stabilized alkali hypobromite solution. This solution can be further stabilized by the addition of a sulfamate solution. The temperatures of all the above stages are comprised between -5 and +10 oC.
L'invention concerne un procédé de préparation de solutions aqueuses stabilisées d'hypobromites alcalins, consistant à faire réagir une solution aqueuse concentrée d'hydroxyde alcalin avec du brome, à laisser réagir le mélange et à ajouter au produit de réaction constitué d'une solution non stabilisée une solution aqueuse d'un composé sulfamique, tel que du sulfamate de sodium, pour obtenir une solution stabilisée d'hypobromite alcalin. Cette solution peut être davantage stabilisée par addition d'une solution de sulfamate. Toutes les étapes du procédé sont réalisées à des températures comprises entre 5 et +10 ·C.
Feldman David
Fishler Theodor Morel
Bromine Compounds Ltd.
Goudreau Gage Dubuc
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