| MgO催化尿素与1,2-丙二醇合成碳酸丙烯酯 |
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| 引用本文： | 武生,刘绍英,王公应.MgO催化尿素与1,2-丙二醇合成碳酸丙烯酯[J].精细化工,2008,25(4):388-391. |
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| 作者姓名： | 武生 刘绍英 王公应 |
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| 作者单位： | 1. 中国科学院,成都有机化学研究所,四川,成都,610041;中国科学院研究生院,北京,100049
2. 中国科学院,成都有机化学研究所,四川,成都,610041 |
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| 摘 要： | 采用8种金属氧化物为催化剂,考察了其在尿素与1,2-丙二醇合成碳酸丙烯酯反应中的催化性能。研究表明,以干燥法制备的MgO催化活性较好。通过工艺条件优化,在MgO用量为反应物总质量的3.2%,n(尿素)∶n(1,2-丙二醇)=1∶2,反应温度160℃,反应时间4 h的条件下,碳酸丙烯酯收率为87%。用XRD、BET对催化剂进行了表征。MgO比表面积是影响其催化活性的主要因素之一。
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| 关 键 词： | MgO 尿素 1 2-丙二醇 碳酸丙烯酯 橡塑助剂 |
| 文章编号： | 1003-5214(2008)04-0388-04 |
| 修稿时间： | 2007年10月20 |
MgO Used as Catalyst for Synthesis of Propylene Carbonate from Urea and 1,2-Propylene Glycol |
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| WU Sheng,LIU Shao-ying,WANG Gong-ying.MgO Used as Catalyst for Synthesis of Propylene Carbonate from Urea and 1,2-Propylene Glycol[J].Fine Chemicals,2008,25(4):388-391. |
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| Authors: | WU Sheng LIU Shao-ying WANG Gong-ying |
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| Abstract: | The synthesis of propylene carbonate using urea and 1,2-propylene glycol as reactants and 8 metallic oxides as catalysts were systematically studied.The results showed that MgO prepared by drying method had good catalytic activity.Under the optimal reaction conditions with 3.2% MgO and n(urea)∶n(1,2-propylene glycol)=1∶2,reacting at 160 ℃ for 4 h,the yield of propylene carbonate could reach 87%.XRD and BET were employed for the catalyst characterization.It was found that the specific surface area of MgO catalyst is one of the important factors on its catalytic activity. |
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| Keywords: | magnesia urea 1 2-propylene glycol propylene carbonate rubber and plastics auxiliaries |
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