Experimental results indicated that delignification increased significantly with a reinforced alkaline extraction. Kappa number reduction were 35.52% and 43.28% by Eo and Eop respectively.

• 结果表明，硫酸盐苇浆经碱抽提强化后，氯化木素溶解率大大提高，与E相比，Eo的卡伯值下降了35.；52%25，Eop的卡伯值下降了43