| 第 33 卷第 3 期 |  | Vol. 33 No. 3 | | 2003 年 6 月 | Jun 2003 |
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所屬欄目：其它
Pb-ZSM-5分子篩的表征及其催化活性的研究 |
| 蔣劼; 毛東森; 楊為民; 盧冠忠(華東理工大學(xué)化學(xué)與制藥學(xué)院; 上海石油化工研究院; 200237; 201208) |
| 摘 要：Pb ZSM 5分子篩催化劑是一種具有較強催化活性的醛氨縮合催化劑 ,其主要特點(diǎn)是反應條件溫和、擇形選擇性高、副產(chǎn)物較少等優(yōu)點(diǎn)。醛氨縮合反應是制備烷基吡啶最具代表性的反應路線(xiàn)之一。用BET、SEM、XRD和IR等技術(shù)考察了Pb ZSM 5分子篩的物理化學(xué)特性 ,并將Pb ZSM 5分子篩用于醛氨縮合反應。研究表明 ,含Pb浸漬液濃度范圍在 2 %～3% (m )內可起到很好的改性作用 ,其中在 2.25 %～2.75 % (m )范圍內烷基吡啶的選擇性最佳。通過(guò)浸漬法使得Pb2 + 進(jìn)入了ZSM 5分子篩骨架中 ,對醛氨縮合反應有較高的催化活性和選擇性。采用Pb ZSM 5分子篩 ,烷基吡啶的產(chǎn)率可以達 75 %以上 |
| 關(guān)鍵詞：Pb-HZSM-5; 表征; 催化合成; 烷基吡啶 |
| 中圖分類(lèi)號：O643.32 文獻標識碼：A 文章編號：1009-9212(2003)03-0039-03 |
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| Characterization and Catalytic Activity of Pb-ZSM-5 Zeolite |
| Jiang Jie 1; MAO Dong sen 2 etc.（1.School of Chemistry and Pharmaceuty; ECUST; shanghai 200237; China; 2.Shanghai Research Institute of Petro chemical Technology; Shanghai; 201028; China） |
| Abstract：Pb ZSM 5 zeolite has high catalytic activity in aldehyde ammonia condensation reaction. Pb ZSM 5 zeolite catalyst has the features of temperate reaction condition, high shape selectivity, and little byproduct.The aldehyde ammonia condensation reaction is one of the typical routes to manufacture alkylpyridine. The state of Pb on ZSM 5 zeolite was studied by BET,SEM,XRD and, IR methods. The Pb ZSM 5 zeolite had been used synthesizing alkylpyridine from aldehydes and ammonia. The results showed that t... |
| Key words：Pb ZSM 5; characterization; catalytic synthesis; alkylpyridine; dipping |
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收稿日期：2002-11-20
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