PROCESS OF PREPARING CHLORINE DIOXIDE AND APPARATUS THEREFOR

摘要

Chlorine dioxide is prepared by separately feeding compounds, which when reacted together yield chlorine dioxide, into a diluting water stream. Shutoff valves (9) are provided in the feed lines (22, 23) of the compounds which cooperate with a supply monitoring system and a pH meter (7). When the monitoring system detects a loss in the supply of the water or one of the compounds, shutoff valves (9) are closed to restrict any further flow of the compounds through the feed lines (22, 23). The pH meter (7) is located downstream of the reaction. When the pH is detected to be outside of a particular range, the shutoff valves (9) are closed to restrict any further flow of the compounds through the feed lines (22, 23). This system for generating chlorine dioxide has the advantages of allowing one to prepare chlorine dioxide of optimal quality on a consistent basis and provides for immediate safeguards in the event of an emergency.