阔叶木硫酸盐制浆和漂白中应用化学添加剂脱除抽提物

The effect of four additives (surfactants and dispersant) that were supplied by Hercules Chemicals Singapore Pte Ltd on kraft pulping and bleaching of Eucalyptus camaldulensis and Acacia mangium has been studied. The use of additives results in a more removal of extractives, and in a more uniform cook with lower screen rejects in eucalyptus, lower residual alkali, and in an improvement in brightness of eucalyptus pulps. At low additive charge level, a reduction of kappa number generated without clear loss of pulp yield in acacia cook.     

阔叶木硫酸盐制浆和漂白中应用化学添加剂脱除抽提物

研究了由HeculesChemicalsSingaporePte .Ltd .提供的四种化学添加剂在桉木和相思木硫酸盐制浆及漂白中对脱除抽提物的影响。使用化学添加剂可使抽提物脱除更多 ,桉木蒸煮在低筛渣率情况下具有更好的蒸煮均一性、更低的残碱及改善浆的白度。在化学添加剂较低用量下 ,卡伯值降低但浆得率并无明显降低