| 淀粉接枝丙烯腈制备絮凝剂的工艺优化及应用研究 |
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| 引用本文： | 张延霖,刘佩红,张秋云.淀粉接枝丙烯腈制备絮凝剂的工艺优化及应用研究[J].应用化工,2007,36(4):387-389. |
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| 作者姓名： | 张延霖 刘佩红 张秋云 |
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| 作者单位： | 华南师范大学,化学与环境学院,广东,广州,510006 |
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| 摘 要： | 研究了淀粉接枝丙烯腈的各种因素对接枝率和接枝效率的影响。结果表明,接枝改性淀粉絮凝剂的最佳工艺条件:可溶性淀粉与丙烯腈的质量比为1∶3,硝酸铈铵的浓度为6 mg/L,接枝温度为35℃,接枝时间为2 h。在此条件下,接枝率可达172%,接枝效率92%。所制得高分子絮凝剂较无机絮凝剂对较高浓度的有机废水有较好的浊度、COD去除率及沉降速度。
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| 关 键 词： | 絮凝剂 丙烯腈 淀粉 有机废水 接枝 |
| 文章编号： | 1671-3206(2007)04-0387-03 |
| 修稿时间： | 2006-12-07 |
Process optimum and application research of starch grafting acrylonitrile to prepare the flocculating agent |
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| ZHANG Yan-lin,LIU Pei-hong,ZHANG Qiu-yun.Process optimum and application research of starch grafting acrylonitrile to prepare the flocculating agent[J].Applied chemical industry,2007,36(4):387-389. |
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| Authors: | ZHANG Yan-lin LIU Pei-hong ZHANG Qiu-yun |
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| Affiliation: | College of Chemistry and Environment, South China Normal University, Guangzhou 510006, China |
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| Abstract: | The influence factors of starch grafting acrylonitrile on the grafting ratio and the grafting efficiency were researched and obtained the optimum process conditions as follows:the mass proportion of dissoluble starch to acrylonitrile is 1∶3,the concentration of ceric ammonium nitrate is 6 mg/L,grafting temperature is 35 ℃,grafting time is 2 h,under the condition,the grafting rate and grafting efficiency are 172%,92% respectively.The polymer flocculating agent prepared is better than inorganic one in the aspects of turbidity,COD removal ratio and deposition speed. |
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| Keywords: | flocculating agent acrylonitrile starch organic waste water grafting |
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