Wet process or ozonizing oxidation method

Details Wet process or ozonizing oxidation method Wet process or ozonizing oxidation method

B - Operations, Transporting

01

J

B01J 10/00 (2006.01) B01F 3/04 (2006.01) B01J 8/22 (2006.01) B01J 19/00 (2006.01) B01J 19/18 (2006.01) C02F 1/72 (2006.01) C02F 1/78 (2006.01) B01F 7/00 (2006.01) C02F 1/02 (2006.01) C02F 11/08 (2006.01)

Patent

CA 2431942

The invention concerns an oxidising method by wet process oxidation or ozonization of a liquid contained in a reactor. The gaseous roof (20) is sucked into the liquid, the part undissolved in the liquid is recuperated in the gaseous roof. The stirring means (2) generates a liquid flux immediately proximate to the end of the conduit (3) emerging into the liquid and generates a gas/liquid dispersion in the zone (15), wherein the liquid reacts with the gas, then transports and ejects said dispersion at its periphery, such that the gas is dissolved in the liquid in the zone (16) extending from the stirring means (2) to the surface of the liquid. The method is more particularly suitable for all oxidising processes using large amounts of oxygen or ozone. It is in particular used for oxidising paper-mill liquors.

La présente invention a pour objet un procédé d'oxydation de type oxydation par voie humide ou ozonation d'un liquide contenu dans un réacteur. Le gaz du ciel gazeux (20) est aspiré dans le liquide, la partie non dissoute dans le liquide est récupérée dans le ciel gazeux. Le moyen d'agitation (2) crée un flux de liquide à proximité immédiate de l'extrémité du conduit (3) débouchant dans le liquide et génère une dispersion gaz/liquide dans la zone (15), au sein de laquelle le liquide réagit avec le gaz, puis véhicule et éjecte en sa périphérie ladite dispersion, de telle sorte que le gaz se dissout dans le liquide dans la zone (16) s'étendant du moyen d'agitation (2) à la surface du liquide. Ledit procédé convient tout particulièrement pour les oxydations mettant en oeuvre des quantités d'oxygène ou d'ozone importantes. Il est notamment appliqué pour l'oxydation de liqueurs de papeterie.

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