Pd-Pb/Al<sub>2</sub>O<sub>3</sub>催化剂上甲基丙烯醛氧化酯化合成甲基丙烯酸甲酯

董海峰; 李增喜; 王正平; 成卫国; 赵威; 张香平; 张锁江

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Pd-Pb/Al₂O₃催化剂上甲基丙烯醛氧化酯化合成甲基丙烯酸甲酯

催化、动力学与反应器 | 更新时间：2025-12-10

- Pd-Pb/Al₂O₃催化剂上甲基丙烯醛氧化酯化合成甲基丙烯酸甲酯
- Oxidative esterification of methacrolein to methyl methacrylate over Pd-Pb/Al₂O₃ catalysts
- 化工学报 2006年第6期页码：1346-1350
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- 网络首发：2006-06-25，
  
  纸质出版：2006-06-25
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董海峰, 李增喜, 王正平, 等. Pd-Pb/Al₂O₃催化剂上甲基丙烯醛氧化酯化合成甲基丙烯酸甲酯[J]. 化工学报, 2006,(6):1346-1350.

DONG Haifeng, LI Zengxi, WANG Zhengping, et al. Oxidative esterification of methacrolein to methyl methacrylate over Pd-Pb/Al₂O₃ catalysts[J]. CIESC Journal, 2006, (6): 1346-1350.
董海峰, 李增喜, 王正平, 等. Pd-Pb/Al₂O₃催化剂上甲基丙烯醛氧化酯化合成甲基丙烯酸甲酯[J]. 化工学报, 2006,(6):1346-1350. DOI：

DONG Haifeng, LI Zengxi, WANG Zhengping, et al. Oxidative esterification of methacrolein to methyl methacrylate over Pd-Pb/Al₂O₃ catalysts[J]. CIESC Journal, 2006, (6): 1346-1350. DOI：

摘要

Abstract

The Pd-Pb catalyst supported on Al2O3 was prepared by the two-step impregnation method.The oxidative esterification of methacrolein (MAL) to methyl methacrylate (MMA) was carried out in a stainless bubble autoclave over the catalyst.The influences of the reaction conditions on catalytic activity were investigated in detail.The optimal reaction conditions were as follows: T=80℃

P=0.3 MPa

methanol∶MAL=8∶1 ( molar ratio )

catalyst mass concentration in the reaction system 3.84%

pH of the reaction system 7—8

oxygen flux rate 30 ml8226;min-1.Under the above conditions

MAL conversion and MMA selectivity reached 91% and 84%

respectively.The catalyst was recycled for seven times and still kept good selectivity.

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Pd-Pb/Al2O3催化剂上甲基丙烯醛氧化酯化合成甲基丙烯酸甲酯

Oxidative esterification of methacrolein to methyl methacrylate over Pd-Pb/Al2O3 catalysts

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references

Pd-Pb/Al₂O₃催化剂上甲基丙烯醛氧化酯化合成甲基丙烯酸甲酯

Oxidative esterification of methacrolein to methyl methacrylate over Pd-Pb/Al₂O₃ catalysts