Title:
METHOD FOR DECOMPOSING PHENOLIC BY-PRODUCTS
Document Type and Number:
WIPO Patent Application WO/2021/054608
Kind Code:
A1
Abstract:
The present invention relates to a method for decomposing phenolic by-products and, more specifically, provides a method for decomposing phenolic by-products, the method comprising the steps of: supplying a phenolic by-product stream to a decomposing device to thermally decompose the stream (S10); recovering active ingredients from an upper discharge stream of the decomposing device and discharging high-boiling point materials from a lower discharge stream (S20); supplying a portion of the lower discharge stream of the decomposing device through a reboiler to the decomposing device, and discharging the remainder of the stream (S30); and supplying a side discharge stream of the decomposing device to the reboiler (S40).
Inventors:
KANG MIN SUK (KR)
LEE SANG BEOM (KR)
JANG CHI HYUN (KR)
LEE SANG BEOM (KR)
JANG CHI HYUN (KR)
Application Number:
PCT/KR2020/010601
Publication Date:
March 25, 2021
Filing Date:
August 11, 2020
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
C07C37/74; C07C7/04; C07C15/085; C07C15/46; C07C39/04
Domestic Patent References:
| WO2000040531A1 | 2000-07-13 |
Foreign References:
| KR20110081873A | 2011-07-14 | |||
| KR20190058273A | 2019-05-29 | |||
| KR100396718B1 | 2003-12-31 | |||
| KR910001098A | 1991-01-30 |
Other References:
See also references of EP 3896051A4
Attorney, Agent or Firm:
P&P PATENT LAW FIRM (KR)
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