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负载锡的水滑石类化合物催化合成碳酸丙烯酯 被引量:1

Synthesis of propylene carbonate over Sn-impregnated hydrotalcite
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摘要 通过浸渍法制备了负载Sn的镁铝水滑石类化合物Sn/HT。利用X-射线衍射(XRD)技术对催化剂的结构进行了表征。研究了其对尿素与1,2-丙二醇合成碳酸丙烯酯的催化性能。考察了催化剂制备条件、反应条件和催化剂的再生性能。结果表明,负载Sn的镁铝水滑石的焙烧产物对尿素与1,2-丙二醇合成碳酸丙烯酯具有比较好的催化活性。当水滑石前驱体中镁铝比为3/1,Sn含量为1.5%,焙烧温度为450℃时制备的催化剂Sn(1.5)/LDO(3)具有最高的催化活性,当尿素与1,2-丙二醇的物质的量比为1∶4时,170℃反应3 h,碳酸丙烯酯的收率达88.26%。催化剂可多次再生重复使用,催化活性稳定。 A series of Sn-impregnated hydrotalcite were prepared by wetness impregnation of calcined hydrotalcite with a solution of SnCl4.The structure of Sn/HT catalysts was characterized using XRD.Synthesis of propylene carbonate from urea and 1,2-propylene glycol on calcined Sn/HT catalysts was carried out in a four-necked glass flask,equipped with a reflux condenser and a magnetical stirrer.The results indicate that Sn/LDO show much a higher activity in synthesis of propylene carbonate.Under the optimal reaction conditions with 1.5% wt.Sn(1.5)/LDO(3) and n(urea)∶n(1,2-propylene glycol)=1∶4,reacting at 170 ℃ for 3 h,the yield of propylene carbonate could reach 88.26%.In a set of reuse experiments,there was almost no reduction of the catalytic activity.The yield of propylene carbonate over regenerated Sn(1.5)/LDO(3) is almost the same as the fresh catalyst.
出处 《化学试剂》 CAS CSCD 北大核心 2011年第7期667-669,共3页 Chemical Reagents
基金 常州工程职业技术学院2010年度大学生实践创新训练计划立项课题资助项目(CX2010-16)
关键词 水滑石 尿素 1 2-丙二醇 碳酸丙烯酯 stannum hydrotalcite urea 1 2-propylene glycol propylene carbonate
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  • 1刘媛,陈长林,徐南平.负载锑的水滑石催化环己酮Baeyer-Villiger氧化制ε-己内酯[J].催化学报,2004,25(10):801-804. 被引量:19
  • 2蒋维,农兰平,赖闻玲,陈泽宇.用焙烧复原法插层组装有机层柱双氢氧化物[J].化学研究与应用,2004,16(6):828-830. 被引量:8
  • 3叶瑛,陈志飞,季珊珊,邬黛黛,黄霞,张维睿.焙烧复原法制备的柱撑水滑石及其结构表征[J].浙江大学学报(理学版),2006,33(5):595-600. 被引量:16
  • 4Ztmng W H,Guo X D,He J.Prepamtion ofNi( Ⅱ )/Ti(Ⅳ) layered double hydroxide at higu supersaturation [J]. Journal of the European Ceramic Society,2008,28 (8): 1623-1629. 被引量:1
  • 5Bai Zlaimin, Wang Zhenyu,Zhang Tianguang.Chamcteriza- tion and friction performances of Co-AI-Layered double- metal hydroxides synthesized in the presence of dodecyl- sulfate[J].Applied Clay Science2003,75-76(5):22-27. 被引量:1
  • 6Ji Zhizhou, Z/ai Pingxu, Shi zhangqiao. Triphosphate removal processes over ternay CaMgAl-layered double hydroxides [J] .Applied Clay Science.2011,54 (3 -4): 196- 201. 被引量:1
  • 7欧阳欣.十二烷基硫酸根插层Mg-A1水滑石的制备[D].哈尔滨:哈尔滨理工大学,2008. 被引量:1
  • 8郑建华,刘鹏,庞海霞,等.InMgAl-CO3型三元水滑石的水热合成[J].石油化工,2003,32(Z):424-426. 被引量:1
  • 9Lopez T,Bosh P,Ramos E. Synthesis and characteriza- tion of Sol-Gel hydrotalcites structure and texture[J]. Langmuir,1996,12(1):189-192. 被引量:1
  • 10Didier T,Olivier L, Bernard C.Synthesis and character- ization of Zn/A1 and Pt/Zn/A1 layered double hydrox- ides obtained by the sol-gel method[J]. Microporous and Mesoporous Materials,2005,80(1-3):2013-2020. 被引量:1

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