METHOD FOR PREPARING METHYLOL ALKANAL
    36.
    发明申请
    METHOD FOR PREPARING METHYLOL ALKANAL 有权
    制备甲醇的方法

    公开(公告)号:US20150291496A1

    公开(公告)日:2015-10-15

    申请号:US14441765

    申请日:2014-07-21

    Applicant: LG Chem, Ltd.

    CPC classification number: C07C45/75 C07C45/86 C07C47/263

    Abstract: Disclosed is a method of preparing methylol alkanal. According to the present invention, a yield of methylol alkanal may be improved without using formaldehyde in an excess amount of a theoretical minimum molar ratio or more, formaldehyde wastewater may be reduced, and the amount of formaldehyde remainder, which may act as a hydrogenation catalyst poison, comprised in the methylol alkanal is decreased when the prepared methylol alkanal is hydrogenated resulting in improvement in efficiency of the hydrogenation.

    Abstract translation: 公开了制备羟甲基链烷醛的方法。 根据本发明,可以在不使用超过理论最小摩尔比或更多的甲醛的情况下改善羟甲基链烷酸的收率,甲醛废水可能降低,甲醛剩余量可作为氢化催化剂 当制备的羟甲基链烷醛被氢化时,包含在羟甲基链烷醛中的毒素降低,从而提高氢化效率。

    Method of preparing ester plasticizer and ester plasticizer prepared therefrom
    37.
    发明授权
    Method of preparing ester plasticizer and ester plasticizer prepared therefrom 有权
    制备酯增塑剂和酯增塑剂的方法

    公开(公告)号:US09127141B2

    公开(公告)日:2015-09-08

    申请号:US14340881

    申请日:2014-07-25

    Applicant: LG CHEM, LTD.

    CPC classification number: C08K5/12 C07C67/03 C07C69/82

    Abstract: Provided is a method of preparing an ester plasticizer, more particularly, a method of preparing an ester plasticizer including conducting a transesterification reaction of a compound of Chemical Formula 1 with a first alcohol of Chemical Formula 2.According to the preparation method according to an embodiment of the present invention, an ester plasticizer having high purity, yield, and process efficiency as well as excellent plasticizer properties such as processability and absorption rate may be easily prepared even under no catalyst.

    Abstract translation: 提供一种制备酯增塑剂的方法,更具体地,涉及一种制备包括进行化学式1的化合物与化学式2的第一醇的酯交换反应的酯增塑剂的方法。根据实施方案的制备方法 本发明中,即使没有催化剂,也可以容易地制备纯度高,产率高,工艺效率高的增塑剂,加工性和吸收倍率等优异的增塑剂性能。

    APPARATUS AND METHOD FOR PREPARING ALCOHOL FROM OLEFIN
    38.
    发明申请
    APPARATUS AND METHOD FOR PREPARING ALCOHOL FROM OLEFIN 审中-公开
    用于从烯烃制备醇的装置和方法

    公开(公告)号:US20140350307A1

    公开(公告)日:2014-11-27

    申请号:US14364559

    申请日:2013-09-26

    Applicant: LG CHEM, LTD.

    Abstract: Disclosed are an apparatus and method for preparing alcohol from olefin. A reactor for hydroformylating olefin comprises a loop reactor for reducing high-boiling point components, a post-treatment device for separating aldehyde comprises a catalyst/aldehyde separator and a divided wall column (DWC) for removing remaining high-boiling point components, and a post-treatment device for separating alcohol comprises a divided wall column (DWC) for removing remaining high-boiling point components. The apparatus and method for preparing alcohol reduce production of high-boiling point components in the preparation of alcohols and efficiently remove remaining high-boiling point components, thus obtaining alcohol containing no high-boiling point components.

    Abstract translation: 公开了一种从烯烃制备醇的装置和方法。 用于加氢甲酰化烯烃的反应器包括用于还原高沸点组分的环管反应器,用于分离醛的后处理装置包括用于除去剩余的高沸点组分的催化剂/醛分离器和分隔壁塔(DWC),以及 用于分离醇的后处理装置包括用于除去剩余的高沸点组分的分隔壁塔(DWC)。 制备醇的装置和方法减少了醇的制备中的高沸点成分的产生,有效地除去剩余的高沸点成分,得到不含高沸点成分的醇。

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