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Method and equipment for preparing hypochlorous acid by combining gas-liquid synthesis with electrolytic method

A technology of hypochlorous acid and electrolysis, which is applied in the directions of hypochlorous acid, electrolysis process, electrolysis components, etc., can solve problems such as potential safety hazards, and achieve the effects of good disinfection effect, improved stability and long storage time.

Pending Publication Date: 2020-12-18
中山市原域企业投资有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method uses acidity such as hydrochloric acid to adjust the pH value, and the process of mixing sodium hypochlorite and acid will cause potential safety hazards.

Method used

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  • Method and equipment for preparing hypochlorous acid by combining gas-liquid synthesis with electrolytic method
  • Method and equipment for preparing hypochlorous acid by combining gas-liquid synthesis with electrolytic method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A kind of gas-liquid synthesis of the present invention combines the method for electrolysis to prepare hypochlorous acid, comprises the following steps:

[0030] S1. Use the pre-filter 1 to process tap water to obtain purified water; the water flow rate is adjusted to 5L / min, and the water pressure is 0.5MPa. The pre-filter 1 is a three-stage filter device, and the three-stage filter device includes a 1 micron microporous PP cotton filter 11 connected in sequence, a second-stage activated carbon filter 12, and an acidic cation exchange resin filter 13. The micron microporous PP cotton filter 11 filters out large particle impurities in tap water; the second-stage activated carbon filter 12 absorbs organic matter and microbial impurities in tap water; the acidic cation exchange resin filter 13 filters out heavy metal impurities in tap water and cations.

[0031] S2, add hypochlorite solution and purified water in step S1 in hypochlorite solution diluter 2, obtain hypoch...

Embodiment 2

[0035] A kind of gas-liquid synthesis of the present invention combines the method for electrolysis to prepare hypochlorous acid, comprises the following steps:

[0036]S1. Use the pre-filter 1 to process tap water to obtain purified water; the water flow rate is adjusted to 100L / min, and the water pressure is 0.1MPa. The pre-filter 1 is a three-stage filter device, and the three-stage filter device includes a 1 micron microporous PP cotton filter 11 connected in sequence, a second-stage activated carbon filter 12, and an acidic cation exchange resin filter 13. The micron microporous PP cotton filter 11 filters out large particle impurities in tap water; the second-stage activated carbon filter 12 absorbs organic matter and microbial impurities in tap water; the acidic cation exchange resin filter 13 filters out heavy metal impurities in tap water and cations.

[0037] S2, add hypochlorite solution and purified water in step S1 in hypochlorite solution diluter 2, obtain hypoc...

Embodiment 3

[0041] A kind of gas-liquid synthesis of the present invention combines the method for electrolysis to prepare hypochlorous acid, comprises the following steps:

[0042] S1. Use the pre-filter 1 to process tap water to obtain purified water; the water flow rate is adjusted to 50L / min, and the water pressure is 0.3MPa. The pre-filter 1 is a three-stage filter device, and the three-stage filter device includes a 1 micron microporous PP cotton filter 11 connected in sequence, a second-stage activated carbon filter 12, and an acidic cation exchange resin filter 13. The micron microporous PP cotton filter 11 filters out large particle impurities in tap water; the second-stage activated carbon filter 12 absorbs organic matter and microbial impurities in tap water; the acidic cation exchange resin filter 13 filters out heavy metal impurities in tap water and cations.

[0043] S2. Add the hypochlorite solution and the purified water in step S1 to the hypochlorite solution diluter 2 t...

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Abstract

The invention discloses a method for preparing hypochlorous acid by combining gas-liquid synthesis with an electrolytic method, which is characterized by comprising the following steps: S1, treating tap water by using a pre-filter to obtain purified water; S2, adding ahypochlorite solution and purified water in the step S1 into a hypochlorite solution diluter to obtain a hypochlorite diluted solution; S3, adding the hypochlorite solution obtained in the step S2 into a mixer, and conveying carbon dioxide gas into the mixer through a pipeline for mixing reaction to obtain a hypochlorous acid mixed solution with the concentration of 10 ppm and the pH value of 4.0-8.0; and S4, electrolyzing the hypochlorous acid mixed solution obtained in the step S3 through an electrolysis device (4) to convert chloride ions in the solution into hypochlorous acid molecules, reducing the content of the chloride ions in the solution, and removing heavy metal ions to obtain a hypochlorous acid product. The product disclosed by the invention is stable in performance, good in sterilization and disinfection effects, long in preservation time, non-toxic and odorless.

Description

technical field [0001] The invention relates to a method for preparing hypochlorous acid by gas-liquid synthesis combined with electrolysis, and also relates to a device used in the above preparation method. Background technique [0002] Disinfectants are used to kill pathogenic microorganisms on the transmission medium, so that the transmission medium can meet the requirements of harmlessness. At the same time, disinfectants can also cut off the transmission route of infectious diseases and achieve the purpose of controlling infectious diseases. At present, the disinfectants used on the surface of objects mainly include ozone-based disinfectants, alcohol-based disinfectants and chlorine disinfectants. Among them, chlorine disinfectants have a wide range of applications and can be used for human skin and mucous membranes, drinking water, tableware, melons and fruits. Disinfection of vegetables and environment etc. [0003] Chlorine disinfectant in the prior art mainly is so...

Claims

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Application Information

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IPC IPC(8): C02F9/04C25B1/26C01B11/04C02F101/20C02F101/30
CPCC02F9/00C25B1/26C01B11/04C02F1/001C02F1/283C02F1/42C02F2001/425C02F2303/04C02F2101/20C02F2101/30
Inventor 东方晓
Owner 中山市原域企业投资有限公司
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