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FMC Corp
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Agricultural Chemicals And Associated Chemicals
(AREA)
Abstract
Chlorine dioxide in vent gases from a pulp mill is scrubbed into an aqueous alkaline solution con-taining hydrogen peroxide and reduced to sodium chlorite. The solution of sodium chlorite is incor-porated into a chlorination, chlorine dioxide or chlorine dioxide/chlorination stage to convert the sodium chlorite to chlorine dioxide in situ.