Title:
METHOD FOR PREPARING AZO COMPOUND
Document Type and Number:
WIPO Patent Application WO/2022/039525
Kind Code:
A1
Abstract:
Disclosed is a method for preparing an azo compound. The disclosed method for preparing an azo compound may comprise: a first step for producing an Xb molecule by electrolyzing, in a reaction system, a first solution including a hydrazo compound and at least one type of MaXb; a second step for oxidizing the hydrazo compound with the generated Xb molecule to obtain a second solution including an azo compound, MaXb, and HX; a third step for discharging the second solution outside the reaction system, and separating therefrom a third solution including MaXb and HX to obtain a solid azo compound; and a forth step for introducing the third solution and an additional hydrazo compound equivalent to the hydrazo compound into the reaction system, and electrolyzing a fourth solution including the additional hydrazo compound, MaXb, and HX to produce an Xb molecule. The fourth step, the second step, and the third step may collectively be defined as a single cycle, and the cycle may be repeatedly performed. Here, X may be a halogen element, and M may be at least one selected from among hydrogen, Li, Na, K, Mg, Ca, Mn, Fe, Ni, Cu, Ag, Zn, Sn, Zr, and Ti, or at least one selected from among a quaternary ammonium ion, a secondary ammonium ion, and a tertiary ammonium ion. H may represent hydrogen, and a and b may each independently be an integer of 1 to 4.
Inventors:
SHIN MIN SEUNG (KR)
KIM YOUNG GI (KR)
CHOI SOK KYUN (KR)
SON SU MIN (KR)
KIM YOUNG GI (KR)
CHOI SOK KYUN (KR)
SON SU MIN (KR)
Application Number:
PCT/KR2021/011046
Publication Date:
February 24, 2022
Filing Date:
August 19, 2021
Export Citation:
Assignee:
DONGJIN SEMICHEM CO LTD (KR)
International Classes:
C25B3/00; C09B29/00; C25B11/04; C25B15/08
Domestic Patent References:
| WO2016068151A1 | 2016-05-06 |
Foreign References:
| US3649484A | 1972-03-14 | |||
| KR20130114961A | 2013-10-21 | |||
| KR20140058428A | 2014-05-14 |
Other References:
DU KE-SI, HUANG JING-MEI: "Electrochemical dehydrogenation of hydrazines to azo compounds", GREEN CHEMISTRY, ROYAL SOCIETY OF CHEMISTRY, GB, vol. 21, no. 7, 1 April 2019 (2019-04-01), GB , pages 1680 - 1685, XP055901085, ISSN: 1463-9262, DOI: 10.1039/C9GC00515C
Attorney, Agent or Firm:
IPCJ PATENT & LAW FIRM (KR)
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