Preparation and Properties of HBS Lignin from Masson Pine |
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Authors: | CHENG Xian-su CHEN Wei-jian CHEN Yun-ping CHEN Yue-xian LI Mian-jun FANG Hua-shu |
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Institution: | 1. College of Material Science and Engineering, Fuzhou University, Fuzhou 350002, P.R. China;
2. Department of Chemistry and Chemical Engineering, Minjiang University, Fuzhou 350011, P.R. China |
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Abstract: | 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. |
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Keywords: | High boiling solvent(HBS) Masson pine Lignin 1 4-Butanediol |
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