Method for directly producing hypochlorous acid disinfectant from salt water and preparation system thereof
By directly generating hypochlorous acid from brine using a contact electrochemical method, the safety and scalability issues associated with chlorine intermediates are resolved, enabling safe and low-cost preparation of hypochlorous acid suitable for various applications.
CN122147352APending Publication Date: 2026-06-05BEIJING INST OF NANOENERGY & NANOSYST
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- BEIJING INST OF NANOENERGY & NANOSYST
- Filing Date
- 2026-03-05
- Publication Date
- 2026-06-05
AI Technical Summary
Technical Problem
Existing technologies for preparing hypochlorous acid from brine must involve chlorine gas, a hazardous intermediate, which limits safety, scalability, and application scenarios.
Method used
By using a contact electrochemical method, a brine containing chloride ions is mixed with a dielectric material, and under the action of ultrasound, interfacial contact and separation occur to generate hypochlorous acid, thus avoiding the formation of chlorine intermediates.
Benefits of technology
It achieves safe, low-cost, and easily scalable preparation of hypochlorous acid, suitable for various application scenarios, avoiding the safety risks of chlorine gas, and reducing energy consumption and equipment complexity.
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Figure CN122147352A_ABST
Abstract
The application relates to the technical field of disinfectant preparation, and discloses a method for directly preparing hypochlorous acid disinfectant from salt water and a preparation system thereof, which comprises the following steps: mixing salt water containing chlorine ions and dielectric material; under the action of ultrasonic waves, continuously causing the salt water containing chlorine ions to be in interface contact with and separated from the dielectric material, so that contact electrochemical free radical reaction is generated to generate hypochlorous acid; wherein the salt water containing chlorine ions is natural seawater or a chlorine salt solution, the concentration of chlorine ions in the chlorine salt solution is 0.2-1.4 M, the frequency of the ultrasonic wave action is 20-80 kHz, and the power of the ultrasonic wave action is 50-200 W. According to the method, hypochlorous acid is directly generated through a contact electrochemical free radical route, no chlorine gas intermediate is generated in the whole process, and major safety risks existing in the production, storage and transportation of chlorine gas in the traditional chlor-alkali process are fundamentally avoided.
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