Glycolysis of polyethylene terephthalate catalyzed by solid superacid
文献类型：会议论文
| 作者 | Zhu, Minli1; Liu, Yanqing1; Yan, Ruiyi1,2; Wang, Hui1; Li, Zengxi1; Lu, Xingmei2 |
| 出版日期 | 1905-07-03 |
| 会议日期 | May 28, 2011 - May 30, 2011 |
| 会议地点 | Changsha, China |
| 关键词 | Catalyst activity - Ethylene glycol - Plastic bottles - Solutions - Ammonium hydroxide - Titanium dioxide - Polyethylene terephthalates - Calcination |
| 卷号 | 233-235 |
| DOI | 10.4028/www.scientific.net/AMR.233-235.512 |
| 页码 | 512-518 |
| 英文摘要 | Solid superacid sulfated titania (SO4 2-/TiO 2) was prepared by impregnation of titanium hydroxide with an aqueous solution of (NH4)2SO4, and then calcined at different temperatures. The structural properties of these samples were investigated using XRD, BET, and DSC. Surface acidity of the catalysts were tested by FT-IR, XPS, and NH3-TPD. The SO4 2-/TiO2 calcined at 340 掳C showed the strongest acid strength. The catalytic activity of the catalysts was evaluated in the depolymerization of polythene terephthalate (PET) with ethylene glycol (EG) by varying different parameters. Experimental results were correlated to the textural properties and surface acidity. The catalyst SO4 2-/TiO2 calcined at 340 掳C exhibited maximum catalytic activity, with the conversion of PET as high as 72.9%, which may be due to the amorphous phase and the strongest acid strength. When the reaction temperature was at 194 掳C, the conversion of PET was 100%, and the yield of the bis-2-hydroxyethyl terephthalate (BHET) monomer was 61.7%. 漏 (2011) Trans Tech Publications, Switzerland. |
| 资助机构 | Trans Tech Publications, P.O. Box 1254, Clausthal-Zellerfeld, D-38670, Germany |
| 会议录 | 2011 International Conference on Chemical Engineering and Advanced Materials, CEAM 2011
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| 学科主题 | Ethylene |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/59469]  |
| 作者单位 | 1.Graduate University of Chinese Academy of Sciences, Beijing 100049, China 2.State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China |
| 推荐引用方式 GB/T 7714 | Zhu, Minli,Liu, Yanqing,Yan, Ruiyi,et al. Glycolysis of polyethylene terephthalate catalyzed by solid superacid[C]. 见:. Changsha, China. May 28, 2011 - May 30, 2011. |
入库方式： OAI收割
来源：过程工程研究所
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