The pressurized sulfonation and methylation process of utilizing black liquor to prepare additive for CWM is studied by cross test and a new method of performance evaluation for CWM is given.

• 通过正交实验法,对造纸黑液加压磺甲基化制备水煤浆添加剂进行了研究,提出了一种新的全面评价水煤浆性能的方法。