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Patent Searching and Data


Title:
CRESOL PREPARATION METHOD FOR INHIBITING PRODUCTION OF BYPRODUCT
Document Type and Number:
WIPO Patent Application WO/2022/139546
Kind Code:
A1
Abstract:
The present invention relates to a cresol preparation method, wherein DTE, a byproduct produced by the cresol preparation method, is separated and recycled to a reaction step, thereby inhibiting the production of DTE. The cresol preparation method according to the present invention is a process in which a cresol is prepared by a reaction of halo-toluene and a basic aqueous solution, and the method comprises a step of separating DTE, a byproduct of the process, and re-feeding DTE to the reaction step of halo-toluene and the basic aqueous solution.

Inventors:
PARK JINHO (KR)
SONG KYUHO (KR)
CHOI JI HYE (KR)
JANG NAMJIN (KR)
Application Number:
PCT/KR2021/019829
Publication Date:
June 30, 2022
Filing Date:
December 24, 2021
Export Citation:
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Assignee:
HANWHA SOLUTIONS CORP (KR)
International Classes:
C07C37/60; C07C37/72; C07C39/06
Foreign References:
KR20170059824A2017-05-31
KR101819217B12018-01-16
CN103992210A2014-08-20
KR20170106804A2017-09-22
CN103254039A2013-08-21
Attorney, Agent or Firm:
PLUS INTERNATIONAL IP LAW FIRM (KR)
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