| 球形木素基离子交换树脂的合成及其对Cr3+的吸附特性 |
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| 引用本文： | 范娟,詹怀宇,刘梦茹.球形木素基离子交换树脂的合成及其对Cr3+的吸附特性[J].离子交换与吸附,2006,22(3):231-236. |
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| 作者姓名： | 范娟 詹怀宇 刘梦茹 |
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| 作者单位： | 1. 华南理工大学制浆造纸工程国家重点实验室,广州,510640;华南理工大学化工研究所精细化学工程与技术研究室,广州,510640
2. 华南理工大学制浆造纸工程国家重点实验室,广州,510640 |
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| 基金项目： | 高等学校博士学科点专项科研项目 |
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| 摘 要： | 以木素磺酸钙为原料,利用反相悬浮聚合技术在一种价廉无毒的介质相中制备出球状木质素基离子交换树脂,并讨论了它对Cr3 的吸附性能。结果表明,树脂对低浓度Cr3 的吸附效果好,前期吸附速度快,40min后吸附速率趋缓;升高温度能明显提高前期吸附速率,饱和吸附量约为60mgCr3 /g干树脂,而且树脂在较宽的弱酸性范围内表现出良好的吸附性能。
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| 关 键 词： | 木质素磺酸钙 离子交换树脂 吸附 Cr3 |
| 文章编号： | 1001-5493(2006)03-0231-06 |
| 收稿时间： | 2005-11-06 |
| 修稿时间： | 2005年11月6日 |
PREPARATION OF SPHERICAL LIGNIN-BASED ION EXCHANGE RESIN AND ITS ADSORPTION PROPERTIES FOR Cr3+ |
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| FAN Juan,ZHAN Huaiyu,LIU Mengru.PREPARATION OF SPHERICAL LIGNIN-BASED ION EXCHANGE RESIN AND ITS ADSORPTION PROPERTIES FOR Cr3+[J].Ion Exchange and Adsorption,2006,22(3):231-236. |
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| Authors: | FAN Juan ZHAN Huaiyu LIU Mengru |
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| Institution: | 1. State Key Laboratory of Pulp and Paper Engineering South China University of Technology, Guangzhou 510640, China;2. Research Institute of Chemical Engineering, South China Univ. of Tech. Guangzhou 510640,China |
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| Abstract: | A spherical lignin-based ion exchange resin was prepared with calcium lignosulfonate as raw material in a cheap and non-toxic disperse phase by reversed phase suspension polymerization technique. And its adsorption properties for Cr3 were studied in detail. It was found under the investigative conditions the saturated adsorptive capacity for Cr3 was near to 60mg/g (dry resin). The resin showed good adsorption affinity for Cr3 with low concentration. The adsorption rate was high in the earlier stage but low after 40min. And the prior-period adsorption rate rose obviously with the rise of temperature. The experimental results indicate that the resin has a good prospect for the adsorption on Cr3 in practical application. |
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| Keywords: | Calcium lignosulfonate Spherical resin Adsorption Cr3 |
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