CRCU

Chemical Research in Chinese Universities ›› 2004, Vol. 20 ›› Issue (2): 225-228.

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Preparation and Properties of HBS Lignin from Masson Pine

CHENG Xian-su1,2, CHEN Wei-jian2, CHEN Yun-ping2, CHEN Yue-xian2, LI Mian-jun2, FANG Hua-shu2   

  1. 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
  • Received:2003-12-02 Online:2004-04-24 Published:2011-08-06
  • Supported by:

    Supported by the Science and Technology Fund of Fujian Education Department(No.JB 02058), Scientific Development Fund of Economy and Trade Commission of Fujian Province(No.200307), Science and Technology Department Fund of Fuzhou City(No.200206) and the Scientific Development Fund of Minjiang University.

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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.

Key words: High boiling solvent(HBS), Masson pine, Lignin, 1,4-Butanediol