Study of manufacturing high pure chlorine dioxide with multi-stage compound chlorine dioxide generator

Based on the status that conversion rate of Single-stage compound chlorine dioxide generator is not high in the market, we designed a multi-stage compound chlorine dioxide generator and discussed the best reaction conditions. At the same time,we also focused on the reaction temperature, reactor pressure, concentration of raw materials and raw materials ratio on the performance of generator. The results show that the best reaction conditions of water bath temperature was 70 degrees C, gas pressure was 60 ml.min(-1), mass fraction of HCl was 24%, mass fraction of NaClO3 was 26%, Molar ratio of HCl and NaClO3 was 3. Under these conditions, the Index,such as production of ClO2, production of effective chlorine, yield and purity of ClO2, consumption rate of NaClO3 and the ratio of ClO2/Cl-2,reached a higher level, providing the technical basis for the mass production of Multi-stage compound chlorine dioxide generator.