Aldol condensation of acetic acid with formaldehyde to acrylic acid over SiO2-, SBA-15-, and HZSM-5-supported V-P-O catalysts

作者：Hu Jing; Lu Zhipeng; Yin Hengbo^*; Xue Wuping; Wang Aili; Shen Lingqin; Liu Shuxin

来源：Journal of Industrial and Engineering Chemistry, 2016, 40: 145-151.

DOI：10.1016/j.jiec.2016.06.018

• Acrylic acid
• Acetic acid
• Formaldehyde
• Vanadium phosphorous oxide catalysts

Aldol condensation of acetic acid with formaldehyde to acrylic acid was catalyzed by the SiO2-, SBA-15-, and HZSM-5-supported vanadium phosphorous oxide (V-P-O) catalysts prepared by the incipient wetness impregnation. The supports obviously increased the surface areas and changed the acid-base properties of the as-prepared catalysts. V-P-O/SBA-15 catalysts with high acid and alkali quantities exhibited high catalytic activities for the aldol condensation of acetic acid with formaldehyde to acrylic acid. When the V-P-O/SBA-15 catalyst with the P/V mole ratio of 2.0:1 catalyzed the reaction at 330370 degrees C, the acrylic acid selectivities were 90.8-70.2% at the formaldehyde conversions of 14.3-68.7%.

• 出版日期2016-8-25
• 单位绵阳师范学院; 江苏大学