Title:
PREPARATION METHOD FOR HYPOCHLOROUS ACID SOLUTIONS HAVING DIFFERENT CONCENTRATIONS, HYPOCHLOROUS ACID SOLUTIONS AND USES THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/123293
Kind Code:
A1
Abstract:
A preparation method for hypochlorous acid solutions having different concentrations, hypochlorous acid solutions and the uses thereof. The preparation method comprises: the available chlorine concentration of a hypochlorous acid solution is positively correlated with the mass of salt, electrolysis time and electrolytic current, and is negatively correlated with the mass of water; and a hypochlorous acid generator is used to prepare, by means of non-diaphragm electrolysis of NaCl, a hypochlorous acid solution having a target concentration. A target available chlorine concentration is substituted into a relational expression to obtain corresponding preparation parameters, and the hypochlorous acid generator is preset before electrolysis, so that a required hypochlorous acid aqueous solution is directly prepared and the operation is simple. The prepared hypochlorous acid solution exhibits a stable property and a strong sterilization effect.
Inventors:
WANG DONGLEI (CN)
LI QIAN (CN)
ZHANG LI (CN)
DING SONGHONG (CN)
LI QIAN (CN)
ZHANG LI (CN)
DING SONGHONG (CN)
Application Number:
PCT/CN2021/143415
Publication Date:
July 06, 2023
Filing Date:
December 30, 2021
Export Citation:
Assignee:
CRAWFORD GLOBAL LTD (CN)
ETI SOLID STATE LIGHTING ZHUHAI LTD (CN)
ETI SOLID STATE LIGHTING INC (US)
NVC LIGHTING LTD (GB)
NVC LIGHTING JAPAN株式会社 (JP)
ETI SOLID STATE LIGHTING ZHUHAI LTD (CN)
ETI SOLID STATE LIGHTING INC (US)
NVC LIGHTING LTD (GB)
NVC LIGHTING JAPAN株式会社 (JP)
International Classes:
C01B11/04; C25B1/26; C25B1/34
Foreign References:
| CN112042667A | 2020-12-08 | |||
| CN213266719U | 2021-05-25 | |||
| JP2013047366A | 2013-03-07 |
Other References:
LIU CHUNWEI, FENG LI, FENG YINA: " Electrolytic preparation of sodium hypochlorite in undivided cell and its stability", CIESC JOURNAL, HUAXUE GONGYE CHUBANSHE, CN, vol. 69, no. 12, 1 December 2018 (2018-12-01), CN , pages 5246 - 5255, XP093076561, ISSN: 0438-1157, DOI: 10.11949/j.issn.0438-1157.20180703
LI, XIAOQIN ET AL.: "Study on Electrolysis Parameters on the Running Effect of Sodium Hypochlorite Generator", CHINA RURAL WATER AND HYDROPOWER, 30 November 2014 (2014-11-30), pages 135 - 138, XP009547552, ISSN: 1007-2284
BAI YAXIAN, TANG YANG; LI YUNJIN; CHEN YONGMEI; WAN PINGYU: "Preparation of hypochlorous acid solution on-line by a membraneless electrochemical cell ", BEIJING UNIVERSITY OF CHEMICAL TECHNOLOGY (NATURAL SCIENCE EDITION), vol. 39, no. 6, 1 January 2012 (2012-01-01), pages 31 - 35, XP093076568
KOBAYASHI, SHIGEO ET AL.: "Production of Sodium Hypochlorite by Direct Electrolysis of Low Concentration Salt Solution Without Diaphragm", CHLOR-ALKALI INDUSTRY, no. 3, 31 December 1991 (1991-12-31), pages 6 - 10, XP009547023, ISSN: 1008-133X
LI, XIAOQIN ET AL.: "Study on Electrolysis Parameters on the Running Effect of Sodium Hypochlorite Generator", CHINA RURAL WATER AND HYDROPOWER, 30 November 2014 (2014-11-30), pages 135 - 138, XP009547552, ISSN: 1007-2284
BAI YAXIAN, TANG YANG; LI YUNJIN; CHEN YONGMEI; WAN PINGYU: "Preparation of hypochlorous acid solution on-line by a membraneless electrochemical cell ", BEIJING UNIVERSITY OF CHEMICAL TECHNOLOGY (NATURAL SCIENCE EDITION), vol. 39, no. 6, 1 January 2012 (2012-01-01), pages 31 - 35, XP093076568
KOBAYASHI, SHIGEO ET AL.: "Production of Sodium Hypochlorite by Direct Electrolysis of Low Concentration Salt Solution Without Diaphragm", CHLOR-ALKALI INDUSTRY, no. 3, 31 December 1991 (1991-12-31), pages 6 - 10, XP009547023, ISSN: 1008-133X
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (CN)
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