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    METHOD FOR PURIFYING PHENOL
    1.
    发明申请
    METHOD FOR PURIFYING PHENOL 审中-公开

    公开(公告)号：US20200079716A1

    公开(公告)日：2020-03-12

    申请号：US15742980

    申请日：2016-10-11

    Applicant: LG CHEM, LTD.

    Inventor： Sung-Kyun KIM ,  Sung-Kyu LEE ,  Yeon-Uk CHOO ,  Joon-Ho SHIN ,  Ha-Na LEE ,  Tae-Woo KIM

    IPC: C07C37/78 ,  B01D3/36 ,  B01D3/00 ,  B01D5/00 ,  B01D3/06 ,  B01D3/14

    Abstract: Disclosed is a method for purifying phenol, by which the loss of a heat source is minimized, the amount used of steam is decreased, and efficiency of energy consumed in a process may be maximized. The method for purifying phenol includes a step of passing impurities including phenol, acetone and hydrocarbon, which are prepared using cumene as a raw material, via a plurality of distillation columns one by one, and performing azeotropic distillation, wherein the ratio of phenol and water at the uppermost end of the distillation column where the azeotropic distillation is performed, is from 60:40 to 65:35, for the optimized separation of the hydrocarbon.

    DIVIDED WALL DISTILLATION COLUMN FOR PRODUCING HIGH PURITY NORMAL BUTANOL, AND NORMAL BUTANOL DISTILLATION METHOD
    4.
    发明申请
    DIVIDED WALL DISTILLATION COLUMN FOR PRODUCING HIGH PURITY NORMAL BUTANOL, AND NORMAL BUTANOL DISTILLATION METHOD 有权
    用于生产高纯度正丁醇的分体式水蒸馏塔和正丁醇蒸馏方法

    公开(公告)号：US20150041308A1

    公开(公告)日：2015-02-12

    申请号：US14469047

    申请日：2014-08-26

    Applicant: LG CHEM, LTD.

    Inventor： Sung-Kyu LEE ,  Joon-HO SHIN ,  Jong-Ku LEE

    IPC: B01D3/14 ,  C07C29/80

    CPC classification number: B01D3/141 ,  B01D3/14 ,  C07C29/80 ,  C07C31/12

    Abstract: The present invention relates to a dividing wall distillation column for producing high-purity n-butanol, and a method for the production of high-purity n-butanol by fractional distillation. More particularly, the present invention relates to a method which provides a dividing wall distillation column with crude n-butanol as a feed to perform a fractional distillation of n-butanol, and an apparatus thereof. The dividing wall distillation column of the present invention exhibits the effects of a two distillation column from only one distillation column, thereby reducing energy and the costs of installing the apparatus as compared to conventional distillation systems.

    Abstract translation: 本发明涉及一种用于生产高纯度正丁醇的分隔壁蒸馏塔，以及通过分馏生产高纯度正丁醇的方法。 更具体地说，本发明涉及一种提供分馏壁蒸馏塔与粗正丁醇作为进料来进行正丁醇分馏的方法及其装置。 本发明的分隔壁蒸馏塔表现出来自仅一个蒸馏塔的两个蒸馏塔的作用，与传统的蒸馏系统相比，降低了能量和安装装置的成本。

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