高等学校化学研究 ›› 2004, Vol. 20 ›› Issue (2): 225-228.
CHENG Xian-su1,2, CHEN Wei-jian2, CHEN Yun-ping2, CHEN Yue-xian2, LI Mian-jun2, FANG Hua-shu2
CHENG Xian-su1,2, CHEN Wei-jian2, CHEN Yun-ping2, CHEN Yue-xian2, LI Mian-jun2, FANG Hua-shu2
摘要: In order to establish a new method for making cellulose and lignin from Masson pine, a high boiling solvent (HBS) pulping process with an aqueous solvent of 1,4-butanediol was investigated. Masson pine chips were pulped with a 70%-90% aqueous solution of 1,4-butanediol containing a small amount of a catalyst at 200-220 ℃ for 60-180 min. HBS Masson pine cellulose is suitable for making paper. Water-insoluble HBS lignin was separated from the liquor reaction mixture by water precipitation. The recovered high boiling solvent (RHBS) is able to be recycled as a pulping solvent, indicating that the HBS method is a pulping process of Masson pine which is energy saving, resources saving and pollution free. HBS lignin has a better chemical reactivity and a lower ash content than lignin sulfonate.