Title:
SYSTEM AND METHOD FOR CONTINUOUSLY PREPARING 2-HYDROXYPYRIDINE-N-OXIDE
Document Type and Number:
WIPO Patent Application WO/2024/087348
Kind Code:
A1
Abstract:
A system and method for continuously preparing 2-hydroxypyridine-N-oxide. The system comprises continuous feeding units, a continuous catalytic oxidation unit (200), a continuous hydrolysis unit (300), a continuous acidity regulation unit (400), a continuous extraction unit (500) and a continuous concentration unit (600). The method comprises sequentially carrying out continuous catalytic oxidation, continuous hydrolysis, continuous acidity regulation, continuous extraction and continuous concentration.
Inventors:
HONG HAO (US)
HONG LIANG (CN)
TAO JIAN (CN)
WANG JINLIANG (CN)
CHEN FURONG (CN)
ZUO JIAN (CN)
LI YING (CN)
LI HONGJIAN (CN)
HONG LIANG (CN)
TAO JIAN (CN)
WANG JINLIANG (CN)
CHEN FURONG (CN)
ZUO JIAN (CN)
LI YING (CN)
LI HONGJIAN (CN)
Application Number:
PCT/CN2022/139070
Publication Date:
May 02, 2024
Filing Date:
December 14, 2022
Export Citation:
Assignee:
TIANJIN ASYMCHEM MEDICAL SCIENCE AND TECH DEVELOPMENT CO LTD (CN)
International Classes:
B01J19/00; B01D1/22; B01D11/04; B01J8/02; B01J19/24; C07D213/89
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (CN)
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