Sinopec Shanghai Research Institute of Petrochemical Technology Co., Ltd., Shanghai 201208, China.
School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China.
Molecules. 2023 Jul 7;28(13):5279. doi: 10.3390/molecules28135279.
Methyl acetate (MA) has a wide range of applications as an important industrial chemical. Traditional MOR zeolite for carbonylation of DME to MA accumulated carbon easily because of a 12-membered ring (12 MR) channel. In this work, we innovatively developed the method of recrystallization ferrierite (FER) zeolite using special chelating ligand sodium oleate which can affect ions other than alkali metals. The characterization results of N adsorption, transmission electron microscopy (TEM), and Fourier transform infrared spectroscopy (FT-IR) show that hydrothermal recrystallization of ferrierite using sodium oleate resulted in a higher Si/Al ratio, a bigger specific surface area and a larger number of Brønsted acid sites in the eight MR channels, which was more efficient in the reaction of carbonylation of dimethyl ether than ordinary alkali treatment.
乙酸甲酯（MA）作为一种重要的工业化学品，具有广泛的应用。传统的 MOR 沸石用于 DME 羰化生成 MA 时，由于其 12 元环（12MR）通道，容易积碳。在这项工作中，我们创新性地使用特殊的螯合配体油酸钠对 Ferrierite（FER）沸石进行再结晶，该配体可以影响除碱金属以外的离子。N 吸附、透射电子显微镜（TEM）和傅里叶变换红外光谱（FT-IR）的表征结果表明，使用油酸钠进行 Ferrierite 的水热再结晶导致 Si/Al 比更高，八元环中的比表面积更大，Bronsted 酸位数量更多，在二甲醚的羰基化反应中比普通碱处理更有效。
