Ozonolysis reactions in liquid co2 and co2-expanded solvents

Details Ozonolysis reactions in liquid co2 and co2-expanded solvents Ozonolysis reactions in liquid co2 and co2-expanded solvents

B - Operations, Transporting

01

F

B01F 3/04 (2006.01) C01B 13/10 (2006.01)

Patent

CA 2706322

A method for increasing ozone concentration in a liquid can include: providing a gas having ozone, introducing the ozone-containing gas into a liquid, wherein the liquid and ozone combination has a temperature between about 0 8 and about 1.5 times the critical temperature of ozone; and increasing isothermally, the pressure of the ozone-containing gas above the liquid to about 0 3 to about 5 times the critical pressure of ozone so as to increase the ozone concentration in the liquid. The temperature is expressed in absolute units (Kelvin or Rankin). The method can be used for removing ozone from a gas or for purifying ozone. The liquid having a high ozone concentration can be used for ozonolysis of a substrate.

L'invention concerne un procédé pour augmenter la concentration d'ozone dans un liquide, qui peut consister : à fournir un gaz contenant de l'ozone; à introduire le gaz contenant de l'ozone dans un liquide, la combinaison de liquide et d'ozone ayant une température comprise entre environ 0,8 et 1,5 fois la température critique de l'ozone; et à augmenter de manière isotherme la pression du gaz contenant de l'ozone au-dessus du liquide jusqu'à entre environ 0,3 à 5 fois la pression critique de l'ozone, de manière à augmenter la concentration d'ozone dans le liquide. La température est exprimée en unités absolues (Kelvin ou Rankine). Le procédé peut être utilisé pour éliminer l'ozone d'un gaz, ou pour purifier de l'ozone. Le liquide ayant une concentration élevée en ozone peut être utilisé pour l'ozonolyse d'un substrat.

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