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    • 10. 发明公开
    • METHOD FOR PRODUCING METHACRYLIC ACID ESTER
    • VERFAHREN ZUR HERSTELLUNG VONMETHACRYLSÄUREESTER
    • EP2960228A4
    • 2016-10-19
    • EP14775559
    • 2014-03-19
    • SUMITOMO CHEMICAL CO
    • SEKI KOHEISUZUTA TETSUYAMIURA NAOKI
    • C07C67/38C07C1/24C07C5/25C07C11/14C07C11/22C07C69/54
    • C07C67/38C07C1/2076C07C1/24C07C5/2506C07C2521/04C07C2521/08C07C2523/04Y02P20/582C07C69/54C07C11/24C07C11/14
    • The method for producing a methacrylic acid ester of the present invention comprises a dehydration reaction step of having acetone undergo a dehydration reaction in the presence of a dehydration reaction catalyst to obtain a reaction mixture; a propyne/propadiene separation step of separating a mixture containing propyne and propadiene as main components from the obtained reaction mixture; a propyne purification step of separating the separated mixture containing propyne and propadiene as main components into a liquid, gas, or gas-liquid mixture containing propyne as a main component, and a liquid, gas, or gas-liquid mixture containing propadiene as a main component; and a carbonylation reaction step of bringing the obtained liquid, gas, or gas-liquid mixture containing propyne as a main component into contact with carbon monoxide and an alcohol having 1 to 3 carbon atoms in the presence of a catalyst containing at least one selected from the group consisting of Group 8 metal elements, Group 9 metal elements, and Group 10 metal elements to obtain a methacrylic acid ester. According to the method of the present invention, it is possible to provide a method for producing a methacrylic acid ester, which is less likely to receive location restrictions and is also economically and industrially advantageous.
    • 本发明的甲基丙烯酸酯的制造方法包括在脱水反应催化剂的存在下进行脱水反应的脱水反应工序,得到反应混合物; 丙烯/丙二烯分离步骤,从得到的反应混合物中分离含有丙炔和丙二烯作为主要成分的混合物; 将以丙炔和丙二烯为主要成分的分离混合物分离成含有丙炔作为主要成分的液体,气体或气液混合物的丙炔纯化步骤,以丙二烯为主要原料的液体,气体或气液混合物 零件; 以及羰基化反应步骤,将含有丙炔作为主要成分的所得液体,气体或气液混合物与一氧化碳和具有1至3个碳原子的醇在含有至少一种选自 由8族金属元素,9族金属元素和10族金属元素组成的组,得到甲基丙烯酸酯。 根据本发明的方法,可以提供一种生产甲基丙烯酸酯的方法,其不太可能获得位置限制,并且在经济和工业上也是有利的。