Title:
METHOD FOR DECOMPOSING PHENOLIC BYPRODUCT AND APPARATUS THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/130314
Kind Code:
A1
Abstract:
The present invention relates to a method and an apparatus for decomposing a phenolic byproduct, the decomposing method comprising the steps of: (S10) supplying the phenolic byproduct to a reactive multistage distillation column; (S20) separating the phenolic byproduct through the reactive multistage distillation column into an upper discharge stream containing an effective ingredient, a side discharge stream containing acetophenone, and a lower discharge stream containing tar; and (S30) mixing the side discharge stream discharged from the reactive multistage distillation column and the lower discharge stream discharged from the reactive multistage distillation column to form a mixed discharge stream.
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Inventors:
KANG MIN SUK (KR)
LEE SANG BEOM (KR)
SHIN JOON HO (KR)
LEE SANG BEOM (KR)
SHIN JOON HO (KR)
Application Number:
PCT/KR2019/013517
Publication Date:
June 25, 2020
Filing Date:
October 15, 2019
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
C07C37/00; C07C7/04; C07C15/085; C07C15/46; C07C37/74; C07C39/04
Foreign References:
| KR100262026B1 | 2000-07-15 | |||
| US4246203A | 1981-01-20 | |||
| KR100161038B1 | ||||
| KR100665764B1 | 2007-01-09 | |||
| KR20140127611A | 2014-11-04 |
Other References:
See also references of EP 3741739A4
Attorney, Agent or Firm:
P&P PATENT LAW FIRM (KR)
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