It is also found that additives of humate and lignosulfonate with high degree of sulphonation increase the static stability of CWS prepared by coals with high content of V(subscript daf).

• 对于腐植酸类和木质素类添加剂，磺化度较高的添加剂有利于挥发分较高的煤种所制浆体的静态稳定性的提高。