Title:
STARTUP METHOD FOR ELECTROLYTIC SULFURIC ACID SOLUTION MANUFACTURING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/234978
Kind Code:
A1
Abstract:
Hydrogen peroxide is added, along with sulfuric acid and/or water as necessary, to a sulfuric acid solution that is in a storage tank 2 or similar of an electrolytic sulfuric acid solution manufacturing system 1, thereby adjusting the oxidizing power of the sulfuric acid solution to a heightened state, and the sulfuric acid solution is supplied to an electrolytic cell 8 and electrolyzed. The electrolytic sulfuric acid solution manufacturing system 1 is started up, for example, when the electrolytic sulfuric acid solution manufacturing system 1 operates for the first time after being completed, or when the same operates after a sulfuric acid-including solution in the system has been exchanged or after the concentration of persulfuric acid components in the electrolytic sulfuric acid solution stored in the system has decreased due to stopping the operation of the system. By starting up the electrolytic sulfuric acid solution manufacturing system in this manner, the startup of this system which manufactures an electrolytic sulfuric acid solution including persulfuric acid components that are generated by electrolyzing sulfuric acid can be completed in a short time, and energy consumption can be reduced.
Inventors:
ISERI HAJIME (JP)
YAMAKAWA HARUYOSHI (JP)
YAMAMOTO YUZUKI (JP)
YAMAKAWA HARUYOSHI (JP)
YAMAMOTO YUZUKI (JP)
Application Number:
PCT/JP2020/034959
Publication Date:
November 25, 2021
Filing Date:
September 15, 2020
Export Citation:
Assignee:
KURITA WATER IND LTD (JP)
International Classes:
C25B15/02; C25B1/30; C25B15/08
Foreign References:
| JP2017171830A | 2017-09-28 | |||
| JP2016167560A | 2016-09-15 | |||
| JP2012215462A | 2012-11-08 | |||
| JP2006114880A | 2006-04-27 | |||
| JP2006278915A | 2006-10-12 | |||
| JP2019044229A | 2019-03-22 |
Attorney, Agent or Firm:
HAYAKAWA Yuzi et al. (JP)
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