Method for collecting (meth)acrylic acid and apparatus for collecting (meth)acrylic acid
    1.
    发明授权
    Method for collecting (meth)acrylic acid and apparatus for collecting (meth)acrylic acid 有权
    收集(甲基)丙烯酸的方法和收集(甲基)丙烯酸的装置

    公开(公告)号:US08246790B2

    公开(公告)日:2012-08-21

    申请号:US12739113

    申请日:2008-10-23

    IPC分类号: C07C51/42

    CPC分类号: C07C51/42 C07C57/04

    摘要: The present invention provides a (meth)acrylic acid collecting method for collecting a (meth)acrylic acid from a mixed gas that includes an organic byproduct, a steam, and a (meth)acrylic acid that are generated in a production reaction of the (meth)acrylic acid, which includes the steps of a) contacting the mixed gas that includes the organic byproduct, the steam, and the (meth)acrylic acid with a (meth)acrylic acid absorption solvent to obtain a gas that includes the organic byproduct and the steam and the (meth)acrylic acid containing solution while the gas and the (meth)acrylic acid containing solution are separated from each other; b) contacting the gas that includes the organic byproduct and the steam that are obtained in the step a with the organic byproduct absorption solvent to obtain the gas that includes the steam and the organic byproduct containing solution while the gas and the organic byproduct containing solution are separated from each other; c) supplying the gas that includes the steam that is obtained in the step b into the production reaction of the (meth)acrylic acid; and d) obtaining the (meth)acrylic acid from the (meth)acrylic acid containing solution that is obtained in the step a while the (meth)acrylic acid and the (meth)acrylic acid containing solution are separated from each other, and a (meth)acrylic acid collecting device.

    摘要翻译: 本发明提供一种(甲基)丙烯酸收集方法,用于从包含有机副产物,蒸汽和(甲基)丙烯酸的混合气体中收集(甲基)丙烯酸,所述有机副产物,蒸汽和(甲基)丙烯酸在( 甲基)丙烯酸,其包括以下步骤:a)使包含有机副产物,蒸汽和(甲基)丙烯酸的混合气体与(甲基)丙烯酸吸收溶剂接触以获得包含有机副产物的气体 和蒸汽和(甲基)丙烯酸溶液,同时气体和(甲基)丙烯酸溶液彼此分离; b)将包含有机副产物的气体和步骤a中获得的蒸汽与有机副产物吸收溶剂接触,以获得包含蒸汽和含有机副产物的溶液的气体,同时气体和含有机副产物的溶液为 相互分离 c)将包含步骤b中获得的蒸汽的气体供应到(甲基)丙烯酸的生产反应中; 和d)在(甲基)丙烯酸和(甲基)丙烯酸的溶液相互分离的同时,从步骤a得到的(甲基)丙烯酸溶液得到(甲基)丙烯酸, (甲基)丙烯酸收集装置。

    Preparation Method for (Meth)acrylate
    2.
    发明申请
    Preparation Method for (Meth)acrylate 审中-公开
    (甲基)丙烯酸酯的制备方法

    公开(公告)号:US20110060158A1

    公开(公告)日:2011-03-10

    申请号:US12853430

    申请日:2010-08-10

    IPC分类号: C07C69/54

    CPC分类号: C07C67/08 C07C69/54

    摘要: The present invention provides a method for preparing (meth)acrylate by esterification reaction of reactants containing (meth)acrylic acid and alcohol in the presence of a catalyst, the preparation method for (meth)acrylate is characterized in that a hydrazine compound or derivative thereof is put into an esterification reactor; and (meth)acrylate prepared by the same. The present invention effectively prevents impurities generated by aldehyde that is contained in the raw material (meth)acrylic acid from remaining in a production apparatus and the catalyst, so that the process for producing (meth)acrylate proceeds smoothly.

    摘要翻译: 本发明提供一种通过在催化剂存在下含有(甲基)丙烯酸和醇的反应物的酯化反应制备(甲基)丙烯酸酯的方法,(甲基)丙烯酸酯的制备方法的特征在于肼化合物或其衍生物 放入酯化反应器中; 和(甲基)丙烯酸酯。 本发明有效地防止在(甲基)丙烯酸原料中含有的由醛生成的杂质残留在生产装置和催化剂中,使得(甲基)丙烯酸酯的制备方法顺利进行。

    METHOD OF RECOVERING (METH) ACRYLIC ACID ESTER
    3.
    发明申请
    METHOD OF RECOVERING (METH) ACRYLIC ACID ESTER 有权
    回收(甲基)丙烯酸酯的方法

    公开(公告)号:US20110230675A1

    公开(公告)日:2011-09-22

    申请号:US13055425

    申请日:2009-11-19

    IPC分类号: C07C67/60

    CPC分类号: C07C67/10 C07C67/60 C07C69/54

    摘要: The present invention provides a method of recovering a (meth)acrylic acid ester, which comprises the steps of: (a) carrying out an esterification reaction between an alcohol and (meth)acrylic acid in the presence of a catalyst to obtain a (meth)acrylic acid ester, wherein a byproduct is generated together with the (meth)acrylic acid ester; and (b) subjecting the byproduct generated in step (a) to a reaction with a catalyst and water in a reactor, wherein the water is fed into the reactor in order that water content exceeds 0 wt % but is 10 wt % or less in the reactor based on the total weight of reactants comprising the byproduct, the catalyst and the water, and thereby separating the (meth)acrylic acid, the alcohol and the (meth)acrylic acid ester contained in the byproduct from the byproduct to obtain the (meth)acrylic acid, the alcohol and the (meth)acrylic acid ester as a recovered product.

    摘要翻译: 本发明提供一种回收(甲基)丙烯酸酯的方法,其包括以下步骤:(a)在催化剂存在下,在醇和(甲基)丙烯酸之间进行酯化反应,得到(甲基) )丙烯酸酯,其中与(甲基)丙烯酸酯一起产生副产物; 和(b)使在步骤(a)中产生的副产物与反应器中的催化剂和水反应,其中将水进料到反应器中,以使水含量超过0重量%,但为10重量%以下 反应器基于包含副产物,催化剂和水的反应物的总重量,从而将副产物中所含的(甲基)丙烯酸,醇和(甲基)丙烯酸酯从副产物中分离出来,得到( 甲基)丙烯酸,醇和(甲基)丙烯酸酯作为回收产物。

    Method of recovering (meth) acrylic acid ester
    6.
    发明授权
    Method of recovering (meth) acrylic acid ester 有权
    回收(甲基)丙烯酸酯的方法

    公开(公告)号:US08772534B2

    公开(公告)日:2014-07-08

    申请号:US13055425

    申请日:2009-11-19

    IPC分类号: C07C69/54 C07C67/48

    CPC分类号: C07C67/10 C07C67/60 C07C69/54

    摘要: The present invention provides a method of recovering a (meth)acrylic acid ester, which comprises the steps of: (a) carrying out an esterification reaction between an alcohol and (meth)acrylic acid in the presence of a catalyst to obtain a (meth)acrylic acid ester, wherein a byproduct is generated together with the (meth)acrylic acid ester; and (b) subjecting the byproduct generated in step (a) to a reaction with a catalyst and water in a reactor, wherein the water is fed into the reactor in order that water content exceeds 0 wt % but is 10 wt % or less in the reactor based on the total weight of reactants comprising the byproduct, the catalyst and the water, and thereby separating the (meth)acrylic acid, the alcohol and the (meth)acrylic acid ester contained in the byproduct from the byproduct to obtain the (meth)acrylic acid, the alcohol and the (meth)acrylic acid ester as a recovered product.

    摘要翻译: 本发明提供一种回收(甲基)丙烯酸酯的方法,其包括以下步骤:(a)在催化剂存在下,在醇和(甲基)丙烯酸之间进行酯化反应,得到(甲基) )丙烯酸酯,其中与(甲基)丙烯酸酯一起产生副产物; 和(b)使在步骤(a)中产生的副产物与反应器中的催化剂和水反应,其中将水进料到反应器中,以使水含量超过0重量%,但为10重量%以下 反应器基于包含副产物,催化剂和水的反应物的总重量,从而将副产物中所含的(甲基)丙烯酸,醇和(甲基)丙烯酸酯从副产物中分离出来,得到( 甲基)丙烯酸,醇和(甲基)丙烯酸酯作为回收产物。

    METHOD FOR COLLECTING (METH)ACRYLIC ACID AND APPARATUS FOR COLLECTING (METH)ACRYLIC ACID
    7.
    发明申请
    METHOD FOR COLLECTING (METH)ACRYLIC ACID AND APPARATUS FOR COLLECTING (METH)ACRYLIC ACID 有权
    收集(甲基)丙烯酸的方法和收集(甲基)丙烯酸的装置

    公开(公告)号:US20100224478A1

    公开(公告)日:2010-09-09

    申请号:US12739113

    申请日:2008-10-23

    IPC分类号: C07C57/07 B01D3/36 B01D3/34

    CPC分类号: C07C51/42 C07C57/04

    摘要: The present invention provides a (meth)acrylic acid collecting method for collecting a (meth)acrylic acid from a mixed gas that includes an organic byproduct, a steam, and a (meth)acrylic acid that are generated in a production reaction of the (meth)acrylic acid, which includes the steps of a) contacting the mixed gas that includes the organic byproduct, the steam, and the (meth)acrylic acid with a (meth)acrylic acid absorption solvent to obtain a gas that includes the organic byproduct and the steam and the (meth)acrylic acid containing solution while the gas and the (meth)acrylic acid containing solution are separated from each other; b) contacting the gas that includes the organic byproduct and the steam that are obtained in the step a with the organic byproduct absorption solvent to obtain the gas that includes the steam and the organic byproduct containing solution while the gas and the organic byproduct containing solution are separated from each other; c) supplying the gas that includes the steam that is obtained in the step b into the production reaction of the (meth)acrylic acid; and d) obtaining the (meth)acrylic acid from the (meth)acrylic acid containing solution that is obtained in the step a while the (meth)acrylic acid and the (meth)acrylic acid containing solution are separated from each other, and a (meth)acrylic acid collecting device.

    摘要翻译: 本发明提供一种(甲基)丙烯酸收集方法,用于从包含有机副产物,蒸汽和(甲基)丙烯酸的混合气体中收集(甲基)丙烯酸,所述有机副产物,蒸汽和(甲基)丙烯酸在( 甲基)丙烯酸,其包括以下步骤:a)使包含有机副产物,蒸汽和(甲基)丙烯酸的混合气体与(甲基)丙烯酸吸收溶剂接触以获得包含有机副产物的气体 和蒸汽和(甲基)丙烯酸溶液,同时气体和(甲基)丙烯酸溶液彼此分离; b)将包含有机副产物的气体和步骤a中获得的蒸汽与有机副产物吸收溶剂接触,以获得包含蒸汽和含有机副产物的溶液的气体,同时气体和含有机副产物的溶液为 相互分离 c)将包含步骤b中获得的蒸汽的气体供应到(甲基)丙烯酸的生产反应中; 和d)在(甲基)丙烯酸和(甲基)丙烯酸的溶液相互分离的同时,从步骤a得到的(甲基)丙烯酸溶液得到(甲基)丙烯酸, (甲基)丙烯酸收集装置。