文献类型：期刊文献

中文题名：阳离子絮凝剂木质素季胺盐的合成与脱色性能研究

英文题名：SYNTHESIS AND PERFORMANCE OF QUATERNARY AMMONIUM SALT OF LIGNIN AS CATIONIC FLOCCULANT

作者：方桂珍[1] 何伟华[1] 宋湛谦[2]

第一作者：方桂珍

通信作者：Fang, G.-Z.

机构：[1]东北林业大学材料科学与工程学院;[2]中国林业科学研究院林产化学工业研究所

年份：2003

卷号：23

期号：2

起止页码：37-41

中文期刊名：林产化学与工业

外文期刊名：Chemistry & Industry of Forest Products

收录：CSTPCD;;EI(收录号：2003397651637);Scopus(收录号：2-s2.0-0141679442);CSCD:【CSCD_E2011_2012】；

基金：东北林业大学院士启动基金资助项目(无编号)

语种：中文

中文关键词：阳离子絮凝剂;木质素季胺盐;合成;硫酸盐法;造纸黑液;催化剂;脱色性能;染料废水;废水处理

外文关键词：lignin; flocculant; dye waste water

分类号：X788.03;X793.03

摘要：　以硫酸盐法造纸黑液中的木质素为原料,合成了木质素季胺盐絮凝剂,比较了不同催化剂对合成产物性能的影响,采用红外光谱(FTIR)表征了木质素季胺盐,用高浓度、高色度的酸染料ATT对木质素季胺盐的絮凝脱色性能进行了定量分析。研究结果表明,硫酸盐木质素通过接枝反应,可合成阳离子絮凝剂———木质素季胺盐。季胺盐单体的合成:温度-3℃至-6℃,三甲胺和环氧氯丙烷的摩尔比为1∶0.7,木质素接枝季胺盐单体,适宜的催化剂为过硫酸铵,加入量0.5%,木质素季胺盐在酸性条件下(pH值为2～3)对染料废水絮凝脱色,投加量2～3g/L。该改性天然高分子是一种性能良好的染料废水的絮凝剂。
Cationic flocculant of quaternary ammonium salt of lignin was synthesized using sulphate lignin from papermaking black liquor.The decolourizing performance of quaternary ammonium salt of lignin and effects of different catalysts on the synthesis were studied.Quaternary ammonium salt of lignin was investigated through infrared spectrum(FTIR).Flocculation performance of the salt applied to dye liquor of high concentration and high colority has been quantitatively analysed. Results indicate that cationic flocculant of quaternary ammonium salt of lignin can be synthesized by grafting reaction.Synthesis of monomeric quaternary ammonium salt was carried out at: mole ratio of trimethylamine and chlorocyclopropane 1∶0.7, temperature from -3 ℃ to -6 ℃.Ammonium supersulphate is a favorable catalyst by contrasting different catalysts at dosage 0.5%. Quaternary ammonium salt of lignin was used as flocculant for decolorizing dye waste water at 2-3 g/L in acidic condition(pH value 2-3).This modified natural macromolecule product is a flocculant for dye wastewater with favorable performance.