Desulfonation of SFP lignosulfonate was studied in this paper under alkaline and high temperature and pressure.

对亚硫酸盐-甲醛-蒽醌制浆法（SFP）的副产品木酸盐在碱性高温条件进行了脱工艺的研。

This method was compared with that of desulfonation GC and the relative deviation of LAS average molecular weight is less than 0.1%.

所得的烷基苯酸的平均相对分子量与气相色谱法相比,相对偏差不大于0.1%。