Preparation method and application of catalyst for synthesizing m-dimethoxybenzene by taking resorcinol and dimethyl carbonate as raw materials

• Main Authors: QI WENBO, LI LEILEI, YAN LIANG, KONG QINGSHAN, XU QIAOQIAO, KOU YONGLI, NIE YINGYING, XU MINGJIE, XUE QICAI, ZHANG ZHIJING
• Format: Patent
• Language: Chinese; English
• Published: 03.01.2023
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention discloses a preparation method and application of a catalyst for synthesizing m-dimethoxybenzene by taking resorcinol and dimethyl carbonate as raw materials. The catalyst comprises a main component and an antioxidant, wherein the antioxidant accounts for 5-15% of the mass of the main component; the main components comprise, by mass, 50-85% of an active component and 15-50% of an auxiliary agent. The active component, the assistant and the antioxidant are used as raw materials, the composite catalyst is simple in preparation process, low in cost, easy to separate from the product, high in catalytic activity and high in product yield, can be used for catalyzing the reaction of resorcinol and dimethyl carbonate to generate m-xylylene dimethyl ether, and is green, efficient and pollution-free in process and suitable for industrial production. The industrial application is successfully realized. 本发明公开一种用于以间苯二酚与碳酸二甲酯为原料合成间苯二甲醚的催化剂的制备方法及应用，包括主成分和抗氧化剂；其中，抗氧化剂为主成分的质量的5-15％；主成分按质量百分比计包括：活性组分50-85％与助剂15-5