METHOD FOR PREPARING ACRYLONITRILE DIMER

Title:

METHOD FOR PREPARING ACRYLONITRILE DIMER

Document Type and Number:

WIPO Patent Application WO/2021/145598

Kind Code:

A1

Abstract:

The present invention relates to a method for preparing an acrylonitrile dimer, the method comprising: a step (S10) for supplying an acrylonitrile monomer, a phosphorus-based catalyst, an alcohol solvent, and an ionic liquid to a reactor to perform a dimerization reaction to produce a monophase dimerization reaction product; a step (S20) for supplying a reactor discharge stream including the dimerization reaction product to a first distillation column, separating the alcohol solvent and unreacted acrylonitrile monomer from the upper discharge stream, and supplying the lower discharge stream including an acrylonitrile dimer, the ionic liquid, and the phosphorus-based catalyst to a second distillation column; and a step (S30) for separating the upper discharge stream including the acrylonitrile dimer in the second distillation column, and separating the lower discharge stream including the ionic liquid and the phosphorus-based catalyst.

Inventors:

JUNG HYUN CHUL (KR)
PARK SAE HUME (KR)
KIM WON SEOK (KR)
KIM JI HA (KR)
DO YOUNG SHIL (KR)
AN YU JIN (KR)
OH WAN KYU (KR)
AHN JEONG HEON (KR)

Application Number:

PCT/KR2021/000049

Publication Date:

July 22, 2021

Filing Date:

January 05, 2021

Export Citation:

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Assignee:

LG CHEMICAL LTD (KR)

International Classes:

C07C253/30; B01J31/02; C07C253/32; C07C253/34; C07C255/09

Domestic Patent References:

WO1993010082A1

1993-05-27

Foreign References:

US4958042A	1990-09-18
CN105837470A	2016-08-10
US7692007B2	2010-04-06
US4126632A	1978-11-21
JPH05286918A	1993-11-02

Other References: