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活性炭负载磷钨酸催化合成丁酸丁酯的研究 被引量:6

Study on the Synthesis of Butyl Butyrate with the Catalysis of Phosphotungstic Acid Supported by Activated Carbon
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摘要 以正丁醇和正丁酸为原料,用自制的PW12/C催化剂催化合成丁酸丁酯。通过考查合成丁酸丁酯的各影响因素,得出其最佳实验条件:磷钨酸负载量为21%左右,醇酸摩尔比为1.5∶1,反应时间2.5 h,催化剂用量为酸质量的2%,带水剂甲苯10 ml,其酯化率可达94.5%。并对催化剂重复使用效果进行了实验,催化剂重复使用至第6次,其酯化率仍可达到90.7%。该法与传统浓硫酸作催化剂相比,具有催化剂用量少,活性高,不腐蚀设备,易分离,可重复使用等优点。 Catalyzed by home- made PW12/C,butyl butyrate was synthesized from butanol and butyric acid.From the study on influence faetors, the optimal condition for the synthesis of butyl butyrate was got as follows:the supported amount by the phosphotungstic acid was about 21% .The molar ratio of butanol and butyric was 1.5 : 1 and the reaction time was 2.5 hours. The amount af catalyst was as 2% as the mass of butyric; the amount of toluene as water carrying agent was 10 ml. Finally,the esterification yield reached 94.5% .Catalyst was used repeatedly,and the sixth esterification yield could still reach 90.7% .Compared with the method of catalyzing by concentrated sulfuric acid, this method had many advantages, such as low amount of catalyst, high catalytic activity, non - corrosion, repeatable usage and easier separation etc.
作者 王珩 李晓霞
出处 《化学与粘合》 CAS 2006年第3期161-163,共3页 Chemistry and Adhesion
关键词 磷钨酸 催化 丁酸丁酯 合成 phosphotungstic acid catalysis butyl butyrate synthesis
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  • 1凌关庭等编..食品添加剂手册 上[M].北京:化学工业出版社,1989:506.
  • 2章思规..精细有机化学品技术手册 下[M].北京:科学出版社,1992:1850.
  • 3KATSOULIS D E. A Survey of Applications of Polyoxometalates[J].Chem. Rev. 1998,98(1):359-388. 被引量:1
  • 4WU QING - YIN, XU SHENG - XIAN, SONG YU - LIN, et al.Preparation and Characterization of Molyhdotungsto - vanadogermanic Acid[J]. Rare Metals., 1994,13(1):58-62. 被引量:1
  • 5王秋长等编..基础化学实验[M].北京:科学出版社,2003:460.
  • 6《化学化工大辞典》编委会,化学工业出版社辞书编辑部编..化学化工大辞典 上[M].北京:化学工业出版社,2003:1586.

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