Title:
METHOD FOR PRODUCING TEREPHTHALOYL CHLORIDE BY CONTROLLING LIGHT AMOUNT
Document Type and Number:
WIPO Patent Application WO/2024/058532
Kind Code:
A1
Abstract:
The present invention relates to a method for producing terephthaloyl chloride, and the purity of hexachloroparaxylene, which is an intermediate raw material, can be improved by adopting a photochlorination method instead of a radical initiator, and by controlling a light amount of light irradiation to less than 2000 LUX, the advantages of a low occurrence of side reactions of hexachloroparaxylene and a high yield are provided. In addition, the present invention provides a method for producing terephthaloyl chloride in which, by adopting a circulation system, chlorine gas is not discharged to the outside.
Inventors:
KIM BYUNG JO (KR)
SHIN CHUL (KR)
LEE HO CHANG (KR)
KIM SUHAN (KR)
KANG DONG YUN (KR)
OH SEUNGHYUN (KR)
SHIN CHUL (KR)
LEE HO CHANG (KR)
KIM SUHAN (KR)
KANG DONG YUN (KR)
OH SEUNGHYUN (KR)
Application Number:
PCT/KR2023/013684
Publication Date:
March 21, 2024
Filing Date:
September 13, 2023
Export Citation:
Assignee:
AEKYUNG CHEMICAL CO LTD (KR)
International Classes:
C07C17/06; C07C25/125; C07C45/30; C07C45/82; C07C49/80
Foreign References:
| CN1072925A | 1993-06-09 | |||
| US4029560A | 1977-06-14 | |||
| US6222078B1 | 2001-04-24 | |||
| RU2108317C1 | 1998-04-10 | |||
| US3928478A | 1975-12-23 |
Attorney, Agent or Firm:
PLUS INTERNATIONAL IP LAW FIRM (KR)
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