| TiSiW_(12)O_(40)/TiO_2催化合成丁醛缩1,2-丙二醇 |
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| 引用本文： | 王冬明,余协卿,杨水金.TiSiW_(12)O_(40)/TiO_2催化合成丁醛缩1,2-丙二醇[J].精细石油化工,2004(4):10-12. |
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| 作者姓名： | 王冬明 余协卿 杨水金 |
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| 作者单位： | 湖北师范学院化学与环境工程系,黄石,435002 |
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| 基金项目： | 湖北省教育厅重点科研基金资助项目(2002A00008). |
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| 摘 要： | 报道了以TiSiW_(12)O_(40)/TiO_2为多相催化剂,通过丁醛和1,2-丙二醇反应合成丁醛缩1,2-丙二醇。探讨了TiSiW_(12)O_(40)/TiO_2对缩醛反应的催化活性,较系统地研究了原料用量、催化剂用量、反应时间等诸因素对收率的影响。结果表明:TiSiW_(12)O_(40)/TiO_2是合成丁醛缩1,2-丙二醇的良好催化剂,在n(丁醛):n(1,2-丙二醇)=1:1.5,催化剂用量为反应物料总质量的0.5％,环己烷为带水剂,反应时间1.0 h的条件下,丁醛缩1,2-丙二醇的收率可达96.3％。
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| 关 键 词： | 丁醛缩1 2-丙二醇 杂多酸盐 催化 缩醛化 |
| 修稿时间： | 2003年11月10 |
CATALYTIC SYNTHESIS OF BUTYRALDEHYDE 1,2-PROPANEDIOL ACETAL BY TiSiW12O40/TiO2 |
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| Wang Dongming,Yu Xieqing and Yang Shuijin.CATALYTIC SYNTHESIS OF BUTYRALDEHYDE 1,2-PROPANEDIOL ACETAL BY TiSiW12O40/TiO2[J].Speciality Petrochemicals,2004(4):10-12. |
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| Authors: | Wang Dongming Yu Xieqing and Yang Shuijin |
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| Abstract: | Butyraldehyde 1,2-propanediol acetal was synthesized from butyraldehyde and 1,2-propanediol in the presence of TiSiW_(12)O_(40)/TiO_2. The factors influencing the synthesis were discussed and the optimum conditions were found as follows: molar ratio of butyraldehyde to 1,2-propanediol is 1: 1.5, the mass percent of catalyst is 0.5% of feed stocks, and the reaction time is 1.0 h. TiSiW_(12)O_(40)/TiO_2 is an excellent catalyst for synthesizing butyraldehyde 1,2-propanediol acetal and the yield could be up to reach 96.3%. |
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| Keywords: | butyraldehyde 1 2-propanediol acetal TiSiW_(12)O_(40)/TiO_2 catalysis acetalation |
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