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磷钨酸/硅胶催化剂催化合成丁醛1,2-丙二醇缩醛
引用本文:杨水金,孔书益.磷钨酸/硅胶催化剂催化合成丁醛1,2-丙二醇缩醛[J].井冈山大学学报(自然科学版),2011(4):41-43,52.
作者姓名:杨水金  孔书益
作者单位:湖北师范学院化学与环境工程学院;
基金项目:湖北省自然科学基金项目(2005ABA053)
摘    要:以溶胶-凝胶法自制的磷钨酸/硅胶为催化剂,通过丁醛和1,2-丙二醇为原料反应合成丁醛1,2-丙二醇缩醛,探讨了磷钨酸/硅胶催化剂对缩醛反应的催化活性,用正交试验法较系统地研究了醛醇量比、催化剂用量、带水剂用量、反应时间诸因素对产品收率的影响.实验表明:磷钨酸/硅胶是合成丁醛1,2-丙二醇缩醛的良好催化剂,在n(丁醛):...

关 键 词:丁醛1  2-丙二醇缩醛  磷钨酸/硅胶  催化剂  缩醛反应

CATALYTIC SYNTHESIS OF BUTYRALDEHYDE 1,2-PROPANEDIOL ACETAL WITH PHOSPHOTUNGSTIC ACID/SILICA
YANG Shui-jin,KONG Shu-yi.CATALYTIC SYNTHESIS OF BUTYRALDEHYDE 1,2-PROPANEDIOL ACETAL WITH PHOSPHOTUNGSTIC ACID/SILICA[J].Journal of Jinggangshan University(Natural Sciences Edition),2011(4):41-43,52.
Authors:YANG Shui-jin  KONG Shu-yi
Institution:YANG Shui-jin,KONG Shu-yi(College of Chemistry and Environmental Engineering,Hubei Normal University,Huangshi,Hubei 435002,China)
Abstract:Butyraldehyde 1,2-propanediol acetal was synthesized from butyraldehyde and 1,2-propanediol in the presence of phosphotungstic acid/silica prepared by sol-gel method.The effects of operation parameters such as molar ratio of butyraldehyde to 1,2-propanediol,the dosage of catalyst,the volume of cyclohexane as the water-carrying agent and reaction time on the yield were measured and analyzed in order to optimize these operation conditions.Under the experimental conditions of molar ratio of butyraldehyde to 1,...
Keywords:butyraldehyde 1  2-propanediol acetal  phosphotungstic acid/silica  catalysis  acetalization  
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