Process for the generation of chlorine dioxide
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United States of America Patent
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Apr 20, 1993
Grant Date -
N/A
app pub date -
May 3, 1991
filing date -
May 3, 1991
priority date (Note) -
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Abstract
A process for the rapid generation of chlorine dioxide under reduced pressure. A reaction column having a venturi therein and a reaction chamber in fluid communication with the nozzle of the venturi is provided. An aqueous chlorate solution and a gaseous stream of acid are introduced into the reaction chamber to react and form chlorine dioxide. A driving medium is introduced into the venturi, and the chlorine dioxide from the reaction chamber is mixed with the driving medium at the outlet of the venturi. The chlorine dioxide/driving medium mixture is passed through a reaction column. In an alternate embodiment, a chlorite solution is introduced into the reaction chamber together with the chlorate solution and the gaseous stream of acid. In a further embodiment, a chlorite solution is introduced into the reaction column after mixing of the driving medium with the chlorine dioxide.
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