Patent ID: 9340422
Filing Date: 2016-05-17
CPC Classification: C01B

Claim Text:
1. A process for the continuous production of chlorine dioxide comprising generating chlorine dioxide in an acidic aqueous reaction medium in a reaction vessel maintained at sub-atmospheric pressure, bringing gaseous chlorine dioxide from said reaction vessel to an absorption tower and contacting it therein with a flow of water to form an aqueous solution containing chlorine dioxide, bringing said aqueous solution containing chlorine dioxide from the absorption tower to a stripper, and increasing the pH of the aqueous solution containing chlorine dioxide leaving the absorption tower to is from about 6.5 to about 7.8, blowing a gas through said aqueous solution of chlorine dioxide in the stripper to strip off from 10 to 100% of the chlorine dioxide entering the stripper and form a gaseous chlorine dioxide product obtained from the stripper with a partial pressure of from 0.5 to 20 kPa.