华南理工大学学报(自然科学版) ›› 2012, Vol. 40 ›› Issue (1): 24-29.

• 化学化工、能源 • 上一篇    下一篇

蔗渣浆的压力过氧化氢漂白

曾健1,陈克复许光2 李军1 徐峻1 杨飞1   

  1. 1. 华南理工大学 制浆造纸工程国家重点实验室//广东省造纸技术与装备公共实验室,广东 广州 510640; 2. 广东中烟工业有限责任公司技术中心,广东 广州 510145
  • 收稿日期:2011-08-23 修回日期:2011-10-24 出版日期:2012-01-25 发布日期:2011-12-01
  • 通信作者: 曾健(1979-) ,男,博士后,主要从事中高浓清洁制浆漂白技术研究. E-mail:zeng.jian@ mail.scut.edu.cn
  • 作者简介:曾健(1979-) ,男,博士后,主要从事中高浓清洁制浆漂白技术研究.
  • 基金资助:

    国家“973”计划项目( 2010CB732205) ; 教育部高等学校博士学科点专项科研基金资助项目( 20100172110020)

Pressured Hydrogen Peroxide Bleaching of Bagasse Pulp

Zeng Jian1,2  Chen Ke-fu1  Xu Guang2  Li Jun1  Xu Jun1  Yang Fei1   

  1. 1.State Key Laboratory of Pulp and Paper Engineering//Guangdong Public Laboratory of Paper Technology and
    Equipment,South China University of Technology,Guangzhou 510640,Guangdong,China; 2.Technology Center,China Tobacco Guangdong Industrial Co. ,Ltd. ,Guangzhou 510145,Guangdong,China
  • Received:2011-08-23 Revised:2011-10-24 Online:2012-01-25 Published:2011-12-01
  • Contact: 曾健(1979-) ,男,博士后,主要从事中高浓清洁制浆漂白技术研究. E-mail:zeng.jian@ mail.scut.edu.cn
  • About author:曾健(1979-) ,男,博士后,主要从事中高浓清洁制浆漂白技术研究.
  • Supported by:

    国家“973”计划项目( 2010CB732205) ; 教育部高等学校博士学科点专项科研基金资助项目( 20100172110020)

摘要: 对烧碱-蒽醌( Soda-AQ) 法蔗渣浆分别进行了螯合预处理( Q) 和常压过氧化氢( P) 、压力过氧化氢( P0 ) 漂白的研究,探讨了单段P0 漂白蔗渣浆的可行性. 正交试验结果表明,P0 漂白蔗渣浆优化的漂白条件为漂白温度100℃、时间80min、压力0. 6 MPa、NaOH用量0. 4%. P0 漂白浆的白度较高,达84. 0%ISO,特性黏度为825. 3mL /g,比QP 漂白浆的白度高9. 9%ISO; P0 漂白浆的物理强度性能也较好,浆料的抗张指数为66. 67 N·m/g,撕裂指数为9.34mN·m2 /g,耐破指数为4. 31 kPa·m2 /g,耐折度为39 次. P0漂白废水的化学耗氧量、生化耗氧量及色度较低,漂白废水可全部逆流回用,大大减少了污染排放.

关键词: 蔗渣浆, 螯合预处理, 压力过氧化氢漂白, 正交试验

Abstract:

Two shot bleaching sequences,namely QP ( chelating pretreatment and hydrogen peroxide bleaching) and P0( pressured hydrogen peroxide bleaching) ,were performed for Soda-AQ bagasse pulp,and the possibility of single-stage P0 for bagasse pulp was discussed. Then,orthogonal tests were carried out and the optimal P0 conditions
were determined,that is,a temperature of 100℃,a duration of 80min,an oxygen pressure of 0. 6MPa and a NaOH dosage of 0. 4%. It is found that the viscosity of the P0-bleached pulp reaches 825. 3mL /g and the brightness
is up to 84. 0%ISO,which is 9. 9%ISO higher than that of the pulp with QP sequence,and that the P0-bleached
pulp is a kind of high-strength pulp with a tensile index of 66. 67N·m/g,a tear index of 9. 34mN·m2 /g, a burst index of 4. 31 kPa·m2 /g and a folding endurance of 39 times. Moreover,it is indicated that P0 helps to greatly reduce the pollution discharge because P0 effluent can be totally countercurrent reused in the bleaching stage due to its low chemical oxygen demand,biochemical oxygen demand and chroma.

Key words: bagasse pulp, chelating pretreatment, pressured hydrogen peroxide bleaching, orthogonal test

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