Title:
METHOD OF RECOVERING AMIDE-BASED COMPOUNDS
Document Type and Number:
WIPO Patent Application WO/2020/130367
Kind Code:
A1
Abstract:
The present invention provides a method of efficiently recovering amide-based compounds, such as N-methyl-2-pyrrolidone, from waste liquid containing amide-based compounds, such as N-methyl-2-pyrrolidone, generated from the process of polymerization of poly(arylene sulfide).
Inventors:
JO SANGHWAN (KR)
HAN JOONG JIN (KR)
KIM HANSOL (KR)
HAN JOONG JIN (KR)
KIM HANSOL (KR)
Application Number:
PCT/KR2019/015679
Publication Date:
June 25, 2020
Filing Date:
November 15, 2019
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
C08G75/0281; B01D3/14; C08G75/02; C08J11/02
Foreign References:
| JP6295379B2 | 2018-03-14 | |||
| JP2012136629A | 2012-07-19 | |||
| US4524200A | 1985-06-18 | |||
| JP2010100701A | 2010-05-06 | |||
| JPS5817560B2 | 1983-04-07 | |||
| US4415729A | 1983-11-15 |
Attorney, Agent or Firm:
YOU ME PATENT AND LAW FIRM (KR)
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