Bromide removal

Details Bromide removal Bromide removal

C - Chemistry, Metallurgy

25

B

C25B 1/26 (2006.01) C01B 7/09 (2006.01) C01B 11/20 (2006.01) C01D 3/16 (2006.01) C02F 1/467 (2006.01) C25B 15/08 (2006.01)

Patent

CA 2220112

A chlorination system in which brine is converted to sodium hypochlorite by an electrolyser. Brine (1) fed to the electrolyser (3) is passed through a filter (2) which is capable of adsorbing bromine or hypobromous acid. Some of the sodium hypochlorite produced in an electrolyser (3) is fed back to a point in the brine feed upstream of the filter (2) such that any bromide in the brine is oxidized to bromine or hypobromous acid and therefore adsorbed by the filter (2).

Poste de chloration dans lequel la saumure est transformée en hypochlorite de sodium par un électrolyseur. La saumure (1) envoyée dans l'électrolyseur (3) passe dans un filtre (2) capable d'adsorber le brome ou l'acide hypobromeux. Une partie de l'hypochlorite de sodium produit dans un électrolyseur (3) est renvoyée vers un point de l'alimentation en saumure situé en amont du filtre (2) de sorte que tout le bromure contenu dans la saumure soit oxydé et transformé en brome ou acide hypobromeux et adsorbé ensuite par le filtre (2).

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