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    Method of producing oligomer
    1.
    发明授权
    Method of producing oligomer 有权

    公开(公告)号：US11939278B2

    公开(公告)日：2024-03-26

    申请号：US17777962

    申请日：2021-09-06

    申请人： LG CHEM, LTD.

    发明人： Kyung Seog Youk ,  Min Ho Sun ,  Jong Hun Song ,  Hong Min Lee ,  Moon Sub Hwang ,  Jeong Seok Lee

    IPC分类号： C07C2/06 ,  C07C7/00 ,  C07C7/08 ,  C07C7/148

    CPC分类号： C07C2/06 ,  C07C7/005 ,  C07C7/08 ,  C07C7/14883

    摘要： Provided is a method of producing an oligomer, the method including: supplying a monomer stream and a solvent stream to a reactor to perform an oligomerization reaction to produce a reaction product; supplying a discharge stream of the reactor to a separation device, and supplying an upper discharge stream of the separation device including an unreacted monomer to the reactor and supplying a lower discharge stream of the separation device to a settling tank; settling a polymer in the settling tank and removing the polymer, and supplying the lower discharge stream of the separation device from which the polymer is removed to a high-boiling point separation column; removing a high-boiling point material from a lower discharge stream of the high-boiling point separation column and supplying an upper discharge stream of the high-boiling point separation column including an oligomer to a solvent separation column; and separating a solvent and the oligomer in the solvent separation column.

    Method for Preparing Oligomer
    2.
    发明申请
    Method for Preparing Oligomer 有权

    公开(公告)号：US20230098226A1

    公开(公告)日：2023-03-30

    申请号：US17910228

    申请日：2022-01-10

    申请人： LG Chem, Ltd.

    发明人： Kyung Seog Youk ,  Jong Hun Song ,  Min Ho Sun ,  Hong Min Lee ,  Hyun Seok Kim ,  Moon Sub Hwang ,  Jeong Seok Lee

    IPC分类号： C07C2/08 ,  C07C7/09 ,  C07C7/152 ,  C07C11/107

    摘要： Provided is a method for preparing an oligomer including: supplying a monomer stream and a solvent stream to a reactor to perform an oligomerization reaction to prepare a reaction product; supplying a discharge stream from the reactor including the reaction product to a separation device and supplying a lower discharge stream from the separation device to a settling tank; adding an organic flocculant to the settling tank to settle and remove a polymer and supplying the lower discharge stream from the separation device from which the polymer is removed to a high boiling point separation column; and removing a high boiling point material from the lower portion in the high boiling point separation column and supplying an upper discharge stream including an oligomer to a solvent separation column.

    Apparatus for preparing oligomer
    6.
    发明授权
    Apparatus for preparing oligomer 有权

    公开(公告)号：US11904291B2

    公开(公告)日：2024-02-20

    申请号：US17629359

    申请日：2021-07-09

    申请人： LG CHEM, LTD.

    发明人： Moon Sub Hwang ,  Min Ho Sun ,  Jong Hun Song ,  Kyung Seog Youk ,  Jeong Seok Lee ,  Hong Min Lee

    IPC分类号： B01J19/26 ,  B01J4/00 ,  B01J10/00 ,  C07C2/08

    CPC分类号： B01J19/26 ,  B01J4/002 ,  B01J10/00 ,  C07C2/08 ,  B01J2204/002

    摘要： The present disclosure relates to an apparatus for preparing an oligomer, and more particularly, to an apparatus for preparing an oligomer including: a reactor including a gaseous area having a first gaseous reactant inlet provided at a lower portion thereof, and a reaction area in which a reaction medium reacts with the gaseous reactant above the gaseous area; a second gaseous reactant inlet provided on an inner wall of the reactor in the gaseous area and a third gaseous reactant inlet provided on an inner wall of the reactor facing the second gaseous reactant inlet; and a first injection nozzle connected to the second gaseous reactant inlet and a second injection nozzle connected to the third gaseous reactant inlet.

    Apparatus for preparing oligomer
    7.
    发明授权
    Apparatus for preparing oligomer 有权

    公开(公告)号：US11731919B2

    公开(公告)日：2023-08-22

    申请号：US17633874

    申请日：2021-07-01

    申请人： LG CHEM, LTD.

    发明人： Jong Hun Song ,  Jeong Seok Lee ,  Hong Min Lee ,  Moon Sub Hwang ,  Min Ho Sun ,  Kyung Seog Youk

    IPC分类号： C07C2/04

    CPC分类号： C07C2/04 ,  B01J2204/005 ,  B01J2219/00162 ,  B01J2219/00247

    摘要： An apparatus for preparing an oligomer including: a reactor supplied with a monomer stream and a solvent stream to perform an oligomerization reaction; a product discharge line provided on a lower portion of a side surface of the reactor; a washing liquid supply line connected to a first point of the product discharge line; and a washing liquid discharge line extending from a second point of the product discharge line, wherein the product discharge line includes a branch point at which the product discharge line is branched into two or more lines and a junction point at which the respective branched lines are joined, and the product discharge line includes pressure control devices provided in each of the two or more branched lines.