With technical kraft lignin as raw materials, the transformer oil as dispersive phase, adding sodium dodecyl sulfate as dispersant and epichlorohydrin as crosslinking agent, spheric micoporous lingin beads were prepared by reversed phase suspension polymerization technique. The suitable process conditions of preparing the lignin beads were determined by signal-factor and orthogonal experiments. The lignin beads were characterized by scanning electron microscopy(SEM), fourier transform infrared (FT-IR) and X-ray diffraction analysis.The results shows that the ideal spherical lignin beads with the 87.75 ％ of the yield and effective diameter 0.6-1.4mm could be obtained under the such conditions as 5g ligin dissolved in 50mL water by adjusting the pH value of the solution 10-13, 0.2g sodium dodecyl sulfate, 3g epichlorohydrin and 150mL transformer oil. Morphology studies show that lignin beads have the full spheric shape and inner porous microstructure. Evidence for the reaction between lignin and epichlorohydrin has been observed by using FT-IR analysis. The results of X-ray diffraction analysis indicate that crosslinked lignin beads is an amorphous polymer.%以工业碱木质素为原料,变压油为分散相,添加分散剂十二烷基硫酸钠及交联剂环氧氯丙烷,采用"反相悬浮聚合法"制备出球形多孔木质素珠体.通过单因素及正交试验筛选制备木质素多孔珠体的影响因素并对球形木质素珠体进行了形貌、红外光谱、X衍射分析.结果分析表明,制备木质素珠体的最佳配比为:5g木质素溶于50mL水中,pH值为10～13,分散剂0.2g,交联剂3g,变压油150mL,制备的木质素珠体产率达到87.75%,有效粒径在0.6～1.4mm之间.珠体的形貌分析表明木质素珠体球形度好,具有微孔结构;红外光谱分析表明木质素与环氧氯丙烷发生了交联反应;X衍射分析表明交联的木质素珠体仍是无定形高分子.
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