METHOD FOR PREPARING OLIGOMER

Title:

METHOD FOR PREPARING OLIGOMER

Document Type and Number:

WIPO Patent Application WO/2022/154398

Kind Code:

A1

Abstract:

The present invention relates to a method for preparing an oligomer, comprising the steps of: supplying a monomer stream and a solvent stream to a reactor to prepare a reaction product through an oligomerization reaction; supplying a discharge stream including the reaction product from the reactor to a separation apparatus, and supplying a lower discharge stream from the separation apparatus to a precipitation tank; adding an organic coagulant to the precipitation tank to precipitate and remove the polymer, and supplying the lower discharge stream from the separation apparatus, from which the polymer has been removed, to a high-boiling-point separation column; and removing a high-boiling-point material from the lower discharge stream in the high-boiling-point separation column, and supplying the upper discharge stream including an oligomer to a solvent separation column.

Inventors:

YOUK KYUNG SEOG (KR)
SONG JONG HUN (KR)
SUN MIN HO (KR)
LEE HONG MIN (KR)
KIM HYUN SEOK (KR)
HWANG MOON SUB (KR)
LEE JEONG SEOK (KR)

Application Number:

PCT/KR2022/000346

Publication Date:

July 21, 2022

Filing Date:

January 10, 2022

Export Citation:

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Assignee:

LG CHEMICAL LTD (KR)

International Classes:

C07C2/08; C07C7/09; C07C7/152; C07C11/107

Domestic Patent References:

WO2020171730A1

2020-08-27

Foreign References:

KR20170058935A	2017-05-29
KR20170098282A	2017-08-29
KR20180035586A	2018-04-06
KR20140047665A	2014-04-22

Other References: