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)的副产品木质素磺酸盐在碱性高温条件下进行了脱磺工艺的研究。
This method was compared with that of desulfonation GC and the relative deviation of LAS average molecular weight is less than 0.1%. 所测得的烷基苯磺酸的平均相对分子质量与气相色谱法相比,相对偏差不大于0.1%。