Title:
METHOD FOR PREPARING ACRYLONITRILE DIMERS
Document Type and Number:
WIPO Patent Application WO/2021/096075
Kind Code:
A1
Abstract:
The present invention relates to a method for preparing acrylonitrile dimers, and provides a method for preparing acrylonitrile dimers, comprising the steps of: supplying acrylonitrile monomers, a nonpolar solvent, an alcohol solvent and a phosphorus-based catalyst to a dimerization reactor so as to dimerize same, thereby supplying same to a distillation column; supplying the acrylonitrile monomers, the nonpolar solvent and the alcohol solvent from the distillation column to the dimerization reactor, and supplying acrylonitrile dimers and the phosphorus-based catalyst therefrom to an extraction device; supplying water containing an acid component to the extraction device, so as to oxidize the phosphorus-based catalyst and inactivate same; and separating the inactivated phosphorus-based catalyst and the acrylonitrile dimers from each other.
Inventors:
PARK SAE HUME (KR)
KIM JI HA (KR)
AN YU JIN (KR)
OH WAN KYU (KR)
JUNG HYUN CHUL (KR)
AHN JEONG HEON (KR)
KIM JI HA (KR)
AN YU JIN (KR)
OH WAN KYU (KR)
JUNG HYUN CHUL (KR)
AHN JEONG HEON (KR)
Application Number:
PCT/KR2020/013977
Publication Date:
May 20, 2021
Filing Date:
October 14, 2020
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
B01J31/02; C07C253/30; C07C253/32; C07C253/34; C07C255/09
Foreign References:
| US4952541A | 1990-08-28 | |||
| KR100374680B1 | 2003-03-04 | |||
| US4102915A | 1978-07-25 | |||
| US4422981A | 1983-12-27 | |||
| US4639539A | 1987-01-27 |
Attorney, Agent or Firm:
P&P PATENT LAW FIRM (KR)
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