کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
227055 | 464814 | 2015 | 7 صفحه PDF | دانلود رایگان |
• A green and efficient solid acid catalyst (SAC) has been synthesized from coal combustion by-product – fly ash.
• SAC exhibited excellent catalytic activity and stability for methyl 4-aminobenzoate (MAB) synthesis.
• MAB was synthesized by Fischer esterification reaction between 4-aminobenzoic acid and methanol over SAC.
A green and efficient solid acid catalyst (SAC) has been synthesized upon modification of F-type fly ash using ortho-phosphoric acid (35 wt. %). Catalyst characterization has been accomplished using different analytical techniques, such as FT-IR, XRD, SEM–EDS, and BET surface area analysis. SAC possessed excellent catalytic activity for Fischer esterification reaction between 4-aminobenzoic acid and methanol at 95 °C to produce methyl 4-aminobenzoate (MAB), an important precursor for the synthesis of pharmaceutical drugs, (±) martinelline, and (±) martinellic acid. This investigation suggests the utilization of fly ash to develop novel solid acid catalyst system for catalyzing industrially important esterification reaction.
Figure optionsDownload as PowerPoint slide
Journal: Journal of Industrial and Engineering Chemistry - Volume 32, 25 December 2015, Pages 211–217