Method for producing unsaturated aldehyde and unsaturated carboxylic acid
    5.
    发明授权
    Method for producing unsaturated aldehyde and unsaturated carboxylic acid 有权
    不饱和醛和不饱和羧酸的制备方法

    公开(公告)号:US08178720B2

    公开(公告)日:2012-05-15

    申请号:US12281694

    申请日:2007-03-06

    IPC分类号: C07C51/00 C07C51/16

    摘要: Disclosed is a method of a gas-phase catalytic oxidation reaction of propylene, isobutylene, or tertiary butanol with molecular oxygen in the presence of a catalyst to produce a corresponding unsaturated aldehyde and a corresponding unsaturated carboxylic acid, in which the catalyst can be used over a long period of time. Concretely, in the presence of the catalyst containing a complex oxide including molybdenum, bismuth and iron as essential components, at least one factor of a reaction pressure and a molar ratio of molecular oxygen to a raw material is controlled to change in such a way that a rate of reaction of the raw material is kept constant in the temperature range of from (TA−15)° C. to TA° C., when a boundary temperature of the activation energy of the catalyst is set to be TA° C.

    摘要翻译: 公开了在催化剂存在下丙烯,异丁烯或叔丁醇与分子氧的气相催化氧化反应的方法,以产生相应的不饱和醛和相应的不饱和羧酸,其中可以使用催化剂 很长一段时间。 具体地说,在含有包含钼,铋和铁作为必要成分的复合氧化物的催化剂的存在下,控制至少一个反应压力因子和分子氧与原料的摩尔比,以使其变化,使得 当催化剂的活化能的边界温度设定为TA℃时,原料的反应速率在(TA-15)℃至TA℃的温度范围内保持恒定。

    METHOD FOR PRODUCING UNSATURATED ALDEHYDE AND UNSATURATED CARBOXYLIC ACID
    6.
    发明申请
    METHOD FOR PRODUCING UNSATURATED ALDEHYDE AND UNSATURATED CARBOXYLIC ACID 有权
    生产不饱和醛和不饱和羧酸的方法

    公开(公告)号:US20090221847A1

    公开(公告)日:2009-09-03

    申请号:US12281694

    申请日:2007-03-06

    IPC分类号: C07C61/16 C07C47/20

    摘要: Disclosed is a method of a gas-phase catalytic oxidation reaction of propylene, isobutylene, or tertiary butanol with molecular oxygen in the presence of a catalyst to produce a corresponding unsaturated aldehyde and a corresponding unsaturated carboxylic acid, in which the catalyst can be used over a long period of time. Concretely, in the presence of the catalyst containing a complex oxide including molybdenum, bismuth and iron as essential components, at least one factor of a reaction pressure and a molar ratio of molecular oxygen to a raw material is controlled to change in such a way that a rate of reaction of the raw material is kept constant in the temperature range of from (TA-15)° C. to TA° C., when a boundary temperature of the activation energy of the catalyst is set to be TA° C.

    摘要翻译: 公开了在催化剂存在下丙烯,异丁烯或叔丁醇与分子氧的气相催化氧化反应的方法,以产生相应的不饱和醛和相应的不饱和羧酸,其中可以使用催化剂 很长一段时间。 具体地说,在含有包含钼,铋和铁作为必要成分的复合氧化物的催化剂的存在下,控制至少一个反应压力因子和分子氧与原料的摩尔比,以使其变化,使得 当催化剂的活化能的边界温度设定为TA℃时,原料的反应速率在(TA-15)℃至TA℃的温度范围内保持恒定。