New System for Efficient Removal of Lignin with a High Proportion of Chlorine Dioxide

Chlorine dioxide is used extensively as the bleaching agent in clean pulp process. To further improve efficiency of chlorine delignification, this study discusses effect a new system high proportion on lignin removal. When mass ratio to was 4 system, 50% removed short time. optimize effects temperature and consistency were studied. The when reaction time 30 min, 25 °C, 5%. Compared with traditional bleaching, can shorten by 50%, reduce greatly energy consumption adsorbable organic halogen (AOX) production 45%. provides novel idea for pulp.