METHOD FOR PREPARING POLYOXYMETHYLENE DIMETHYL ETHER CARBONYL COMPOUND AND METHYL METHOXYACETATE
    1.
    发明申请
    METHOD FOR PREPARING POLYOXYMETHYLENE DIMETHYL ETHER CARBONYL COMPOUND AND METHYL METHOXYACETATE 有权
    制备聚氧乙烯二甲基醚类羰基化合物和甲基甲酸甲酯的方法

    公开(公告)号:US20170001941A1

    公开(公告)日:2017-01-05

    申请号:US15105364

    申请日:2013-12-23

    IPC分类号: C07C67/37

    摘要: A method for preparing a polyoxymethylene dimethyl ether carbonyl compound and/or methyl methoxyacetate as intermediates for producing ethylene glycol, which comprises passing a raw material: polyoxymethylene dimethyl ether or methylal together with carbon monoxide and hydrogen gas through a reactor carrying an acidic molecular sieve catalyst, and performing a reaction to prepare a corresponding product under an appropriate condition where no other solvent is added, in which the process of the reaction is a gas-liquid-solid three-phase reaction, the raw material of polyoxymethylene dimethyl ether or methylal has a high conversion rate, each product has a high selectivity, the catalyst has a long service life, additional solvents are not required to be used, and reaction conditions are relatively mild.

    摘要翻译: 一种制备聚甲醛二乙醚羰基化合物和/或甲氧基乙酸甲酯作为生产乙二醇的中间体的方法,其包括将原料:聚甲醛二甲醚或甲缩醛与一氧化碳和氢气一起通过携带酸性分子筛催化剂的反应器 ,在不进行其他溶剂的适当条件下进行反应,制备相应的产物,其中反应过程为气 - 液 - 固三相反应,聚甲醛二甲醚或甲缩醛的原料具有 转化率高,每种产品选择性高,催化剂使用寿命长,不需要额外的溶剂,反应条件相对温和。

    METHOD FOR PREPARING METHYL ACETATE
    5.
    发明申请
    METHOD FOR PREPARING METHYL ACETATE 有权
    制备乙酸甲酯的方法

    公开(公告)号:US20150298108A1

    公开(公告)日:2015-10-22

    申请号:US14650589

    申请日:2014-01-28

    IPC分类号: B01J31/02 B01J29/18 C07C67/37

    摘要: The present invention provides a method for preparing methyl acetate, in which a feed gas containing an organic amine, dimethyl ether, carbon monoxide and optional hydrogen gas goes through a reactor loaded with a H-type mordenite catalyst, to produce methyl acetate; wherein said H-type mordenite catalyst is a H-type mordenite catalyst with adsorption of an organic amine. The method in the present invention improves the catalyst stability and prolongs the catalyst life, by using the H-type mordenite catalyst with adsorption of an organic amine as the catalyst and adding the organic amine in the feed gas to replenish the organic amine desorbed from the catalyst during the reaction.

    摘要翻译: 本发明提供了一种制备乙酸甲酯的方法,其中含有有机胺,二甲醚,一氧化碳和任选的氢气的进料气体经过负载有H型丝光沸石催化剂的反应器,生产乙酸甲酯; 其中所述H型丝光沸石催化剂是吸附有机胺的H型丝光沸石催化剂。 本发明的方法通过使用H型丝光沸石催化剂吸附有机胺作为催化剂,并在进料气体中加入有机胺,从而提高催化剂的稳定性并延长催化剂寿命,从而补充从 催化剂。