Title:
REACTOR CLEANING METHOD
Document Type and Number:
WIPO Patent Application WO/2023/058865
Kind Code:
A1
Abstract:
The present invention relates to a reactor cleaning method, and provides a reactor cleaning method comprising the following steps: pressurizing a cleaning solvent container, using a pressurization gas, to 5 kg/cm2·g to 40 kg/cm2·g; filling the inside of a reactor by supplying a cleaning solvent stream from the cleaning solvent container to the bottom and/or side of the reactor; and, with the temperature of the reactor maintained at 115-200°C, circulating the cleaning solvent stream between the cleaning solvent container and the reactor.
Inventors:
YOUK KYUNG SEOG (KR)
SONG JONG HUN (KR)
LEE HONG MIN (KR)
HWANG MOON SUB (KR)
LEE JEONG SEOK (KR)
SONG JONG HUN (KR)
LEE HONG MIN (KR)
HWANG MOON SUB (KR)
LEE JEONG SEOK (KR)
Application Number:
PCT/KR2022/010915
Publication Date:
April 13, 2023
Filing Date:
July 25, 2022
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
B08B3/08; B08B3/10; B08B7/00; C07B35/00; C07C2/04
Foreign References:
| JP5938934B2 | 2016-06-22 | |||
| JPH0810726A | 1996-01-16 | |||
| JP2001087724A | 2001-04-03 | |||
| KR20210072402A | 2021-06-17 | |||
| KR20210061074A | 2021-05-27 |
Other References:
See also references of EP 4197658A4
Attorney, Agent or Firm:
P&P PATENT LAW FIRM (KR)
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