| 锌粉对聚氯乙烯的机械化学还原脱氯 |
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| 引用本文： | 肖骁,肖松文.锌粉对聚氯乙烯的机械化学还原脱氯[J].化工环保,2006,26(5):362-365. |
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| 作者姓名： | 肖骁 肖松文 |
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| 作者单位： | 1. 中南大学,冶金科学与工程学院,湖南,长沙,410083;长沙矿冶研究院,国家金属矿产资源综合利用工程技术中心,湖南,长沙,410012
2. 长沙矿冶研究院,国家金属矿产资源综合利用工程技术中心,湖南,长沙,410012 |
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| 基金项目： | 国家自然科学基金重点资助项目（50434010）. |
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| 摘 要： | 以锌粉为还原剂进行了聚氯乙烯（PVC）的机械化学还原脱氯（简称脱氯）探索研究，考察了球磨转速、球料比（磨球与试样的质量比）、锌粉与PVC质量比等对脱氯率的影响，并对脱氯产物进行了X射线衍射、红外光谱等分析。实验结果表明，最佳工艺条件为球料比33、球磨转速528r／min、锌粉与PVC质量比9；产物中未形成结晶性氯化锌，且锌粉被氧化成ZnO；行星球磨比搅拌球磨对PVC的脱氯效果好，球磨时间超过3h，PVC的脱氯率可接近100％。
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| 关 键 词： | 聚氯乙烯 机械化学还原 锌粉 脱氯 |
| 文章编号： | 1006-1878（2006）05-0362-04 |
| 收稿时间： | 2006-03-09 |
| 修稿时间： | 2006-05-18 |
Dechlorination of Polyvinyl Chloride by Mechanochemical Reduction Process Using Zinc Powder |
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| Xiao Xiao,Xiao Songwen.Dechlorination of Polyvinyl Chloride by Mechanochemical Reduction Process Using Zinc Powder[J].Environmental Protection of Chemical Industry,2006,26(5):362-365. |
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| Authors: | Xiao Xiao Xiao Songwen |
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| Institution: | 1. College of Metallurgical Science and Engineering,Central South University, Changsha Hunan 410083, China 2. National Engineering Research Center for Comprehensive Utilization of Metallic Mineral Resource, Changsha Rresearch Institute of Mining and Metallurgy, Changsha Hunan 410012, China |
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| Abstract: | The mechanochemical reduction process for dechlorination of polyvinyl chloride(PVC)was explored using zinc powder as reducing agent.The effects of the rotation speed of the ball mill,the mass ratio of ball to raw materials and Zn powder to PVC on dechlorination rate were investigated.The product was characterized by XRD and IR.The experimental results indicate that the optimum conditions are as the follows:the mass ratio of ball to raw materials 33,the rotation speed of the ball mill 528 r/min,and the mass ratio of Zn powder to PVC 9.There is no crystallinic ZnCl2 in the product,and Zn is oxidized into ZnO.The planetary mill is more effective than attritor mill on the dechlorination of PVC with milling time over 3 h and the dechlorination efficiency nearly 100%. |
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| Keywords: | polyvinyl chloride mechanochemical reduction zinc powder dechlorination |
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