Complex manufacturing method of hypochlorous acid water and sodium hypochlorite

Abstract

The present invention relates to a complex manufacturing method of hypochlorous acid water and sodium hypochlorite, the complex method being capable of simultaneously manufacturing hypochlorous acid water and sodium hypochlorite by using a hybrid-type manufacturing apparatus in which a diaphragm-type electrolysis space and a non-diaphragm type electrolysis space are integrated. The hybrid-type manufacturing apparatus includes: a positive electrode; a first negative electrode facing one surface of the positive electrode; and a second negative electrode facing the other surface of the positive electrode, wherein a diaphragm is installed between the positive electrode and the first negative electrode to separate a first space in which the first negative electrode is formed and a second space in which the positive electrode is formed, and a non-diaphragm third space in which the positive electrode and the second negative electrode face each other is formed without a diaphragm between the positive electrode and the second negative electrode.

Description

Composite manufacturing method of hypochlorous acid water and sodium hypochlorite

[0001] The present invention relates to a method for producing a composite of hypochlorous acid water and sodium hypochlorite, and more specifically, to a method for producing a composite of hypochlorous acid water and sodium hypochlorite, which can produce hypochlorous acid water and sodium hypochlorite in a composite manner using a hybrid production device in which a diaphragm-type electrolysis space and a diaphragm-less electrolysis space are integrated, and which simultaneously produces strongly alkaline electrolyzed water, thereby allowing a user to conveniently select the pH of hypochlorous acid water according to various industrial or household uses.

[0002]

[0003] Hypochlorous acid can generally be manufactured by distilling bleach in a stream of carbon dioxide, shaking a solution of chlorine dioxide and carbon tetrachloride with water, or passing chlorine gas through an aqueous solution of sodium bicarbonate at low temperature.

[0004] This hypochlorous acid decomposes while releasing oxygen and produces chlorine and chloric acid, which has a strong oxidizing effect, so it can be used as a sterilizing, disinfecting, and deodorizing agent in various fields, and can prevent secondary infections caused by human contact, tools, and objects such as Escherichia coli, Staphylococcus aureus, mold, spore-forming bacteria, bacillus, MERS, and avian influenza virus, and has an excellent oxidizing and deodorizing effect on odorous substances such as ammonia, hydrogen sulfide, and formaldehyde. In this way, hypochlorous acid has already been proven non-toxic through characteristic tests such as acute toxicity tests, eye irritation tests, primary skin irritation tests, cumulative skin irritation tests, sensitization tests, cytotoxicity tests, and mutagenicity tests, and its sterilizing power has been confirmed as a safe sterilizing agent reported to the academic society to sterilize all types of bacteria, including E. coli, within 1 minute.

[0005] The method of manufacturing hypochlorous acid is mainly based on the principle of salt water electrolysis to manufacture sodium hypochlorite (NaClO).

[0006] Generally, when a certain amount of salt is dissolved in natural water to make salt water and electrolyze it in an electrolysis device, the water produced through the electrolysis exhibits acidity or alkalinity due to its characteristics. Acidity can occur with a pH concentration of 2.7, and alkalinity can occur with a pH concentration of up to 11. More specifically, it is in the form of chlorine gas (Cl2) at pH 4 or lower, hypochlorous acid (HOCl) in the weakly acidic and neutral range, and chlorate ion (OCl) in the alkaline range. - ) exists in the form of chlorate ion (OCl), and the sterilizing power of hypochlorous acid (HOCl) is - ) is known to be superior to chlorine. This hypochlorous acid water is classified into strongly acidic hypochlorous acid water (pH 2.7 or lower), weakly acidic hypochlorous acid water (pH 2.7 to pH 5.0), and slightly acidic hypochlorous acid water (pH 5.0 to 6.5). At around pH 5.0, hypochlorous acid (HOCl) approaches 100%, so the sterilizing power is the best, and the stability of available chlorine is the best in slightly acidic hypochlorous acid water.

[0007] When the above salt water is directly electrolyzed, components having acidic and alkaline properties are generated at the anode (30) and cathode, respectively, but these components are converted into strongly alkaline sodium hypochlorite and hydrogen through hydrolysis and re-reaction when discharged through the electrolysis device. Since the sodium hypochlorite converted as described above has high alkalinity and strong sterilization and insecticidal effects, it is generally used mainly for industrial purposes such as sterilization or wastewater treatment. The electrolysis device for generating the above sodium hypochlorite has the advantage of being relatively easy to manufacture and being able to increase the size of the device, but it is chemically unstable at room temperature, so the available chlorine decreases over time, and in particular, when the temperature is high, the decrease rate becomes significantly faster (in the summer, the available chlorine decreases by an average of 25 to 30% per month), and there was a problem that a stable concentration could not be maintained.

[0008] In order to solve these problems, a method of producing slightly acidic hypochlorous acid water by electrolyzing raw water with 2 to 6% hydrochloric acid added in a membraneless electrolytic cell is provided, in which chlorine ions (Cl) are produced at the anode (30). - ) is oxidized to become chlorine (Cl2(aq)), which reacts with raw water to produce hypochlorous acid (HOCl), and there was also a method of producing slightly acidic hypochlorous acid water with a pH of 5.0 to 6.5 by mixing and diluting a large amount of raw water. However, the production equipment was complicated and the process conditions had to be finely adjusted, making it difficult to operate. Furthermore, since hydrochloric acid had to be handled as an electrolyte, there was a limitation that it was very dangerous for users to operate at home.

[0009] Meanwhile, as a method for manufacturing hypochlorous acid water, there are a membrane-type manufacturing method in which a membrane is installed to separate and collect electrolytic products, and alkaline water and strongly acidic water are collected at the cathode and anode (30) respectively to produce hypochlorous acid, and a method in which the two collected compositions are mixed and neutralized or separately supplied with hydrochloric acid (HCL) to neutralize them, thereby producing hypochlorous acid. This hypochlorous acid water can produce weakly acidic electrolyzed water for drinking or sterilization and strongly acidic electrolyzed water for sterilization. However, the acidic water and alkaline water produced by this membrane-type hypochlorous acid production method are only used for household purposes such as health drinks, skin care, bean sprout cultivation, pepper cultivation, or kimchi fermentation. In addition, in order to maintain the acidic water and alkaline water generated above at an appropriate pH, careful flow rate control is required, and for mixing, the device becomes complicated, including having a storage tank for receiving and storing each generated electrolyzed water, other injection metering pumps, and agitators, etc., and has the problem of being difficult to operate and expensive.

[0010] In addition, as illustrated in Fig. 1, hypochlorous acid water has the advantage of being able to be used for a wide variety of purposes depending on the pH range, but in the past, the pH of hypochlorous acid water that could be produced was limited depending on the diaphragm-type and non-diaphragm-type device and the type of electrolyte. In other words, the uses of hypochlorous acid water produced depending on the hypochlorous acid water production device were limited, and research on a method that can be applied to various purposes by producing hypochlorous acid water and sodium hypochlorite at various pHs in one device is still minimal.

[0011]

[0012] The present invention has been devised to improve the above-mentioned conventional problems, and the present invention provides a method for producing hypochlorous acid water and sodium hypochlorite simultaneously in a single hybrid production device in which a diaphragm-type and a diaphragm-less electrolysis space are integrated, and has the advantage of being able to adjust the pH range of the produced acidic water and alkaline water to an appropriate level regardless of the type of electrolyte by carefully controlling the flow rate, and thereby securing a variety of uses by producing the produced hypochlorous acid water and sodium hypochlorite by controlling them to have various pHs.

[0013] In addition, the present invention provides a composite manufacturing method of hypochlorous acid water and sodium hypochlorite, which can selectively produce hypochlorous acid water and sodium hypochlorite according to the intended use by applying different voltages to each cathode provided in a diaphragm-type and a diaphragm-less electrolysis space and controlling the supply speed of the electrolyte and inflow water, as another problem to be solved.

[0014]

[0015] The method for producing a composite of hypochlorous acid water and sodium hypochlorite according to the present invention, which solves the above-described problem, is produced using a hybrid hypochlorous acid water and sodium hypochlorite production device, in which an anode (30), a first cathode (10) facing one side of the anode (30), and a second cathode (20) facing the other side of the anode (30) are installed inside, a partition (40) is installed between the anode (30) and the first cathode (10), thereby separating a first space (11) in which the first cathode (10) is formed, and a second space (12) in which the anode (30) is formed; and a partition is not installed between the anode (30) and the second cathode (20), thereby forming a partition-less third space (13) formed by the anode (30) and the second cathode (20) facing each other.

[0016] An electrolyte manufacturing step for manufacturing an electrolyte of a certain concentration in an electrolyte manufacturing tank;

[0017] A step of supplying the electrolyte through the electrolyte supply part (61) formed in the center of the anode (30) and supplying inflow water through the inflow water supply part (62) formed in the first space part (11) where the diaphragm (40) is installed to form an electrolyte mixture maintaining a constant concentration;

[0018] After the above electrolyte mixture is formed, a step of applying voltage to the positive electrode (30), the first negative electrode (10), and the second negative electrode; and

[0019] It is characterized by comprising a step of reacting an electrolyte mixture by applying the above voltage to obtain hypochlorous acid water or / and sodium hypochlorite.

[0020]

[0021] Here, the electrolyte of the electrolyte preparation step is characterized by being a sodium chloride aqueous solution prepared by mixing 0.6 to 2 parts by weight of sodium chloride with 100 parts by weight of distilled water.

[0022]

[0023] Here, the step of forming the electrolyte mixture is characterized in that the electrolyte and the inflow water are supplied using a constant pressure pump, and the amount of inflow is supplied in a weight ratio of the inflow water and the electrolyte of 100:50 to 100:100, and the electrolyte mixture has a sodium chloride concentration in a concentration range of 0.008556 to 0.02567 mol.

[0024]

[0025] Here, the step of applying the voltage is characterized by selecting one of the voltage applying methods among applying the voltage only to the anode (30) and the first cathode (10), applying the voltage only to the anode (30) and the second cathode (20), or applying the voltage simultaneously to the anode (30), the first cathode (10), and the second cathode (20).

[0026]

[0027] Here, the voltage applied to the anode (30) is 7.93077399675×10 21 ~8.8119711075×10 21 eV, the voltage applied to the first cathode (10) is 7.2097945425×10 20 ~8.010882825×10 20 eV, the voltage applied to the second cathode (20) is 7.2097945425×10 21 ~8.010882825×10 21 It is characterized in that voltage is selectively applied to the anode and the first cathode, or the anode and the second cathode, or the anode and the first and second cathodes, so as to satisfy eV.

[0028]

[0029] The method for producing a composite hypochlorous acid water and sodium hypochlorite provided by the present invention has the advantage of being able to produce hypochlorous acid water or sodium hypochlorite in a composite manner in a stable production environment, which is different from the limitation of being able to produce only one when producing hypochlorous acid water or sodium hypochlorite using a conventional diaphragm-type or non-diaphragm-type production device, and can produce hypochlorous acid water or sodium hypochlorite, which are classified into weakly acidic hypochlorous acid water and / or slightly acidic hypochlorous acid water, in a composite manner according to the arbitrary choice of the producer in a single production system.

[0030] In addition, the method for producing a composite of hypochlorous acid water and sodium hypochlorite according to the present invention has the advantage of being able to produce hypochlorous acid water or sodium hypochlorite, which are classified as weakly acidic hypochlorous acid water or / and slightly acidic hypochlorous acid water, satisfying various pHs even in a low concentration range compared to the concentration of a conventional electrolyte solution.

[0031] In addition, the present invention uses a hybrid hypochlorous acid water and sodium hypochlorite manufacturing device that integrates a diaphragm-type electrolysis space and a diaphragm-less electrolysis space, so that it can easily produce strongly acidic, weakly acidic, and slightly acidic hypochlorous acid water and sodium hypochlorite in a safe and simple manner as needed, and in addition, it simultaneously produces strongly alkaline electrolyzed water, so that the user can conveniently select the pH of the hypochlorous acid water according to various industrial or household uses, and thus, it has an economical effect because efficient manufacturing is achieved without using a separate slightly acidic hypochlorous acid water generating device, weakly acidic hypochlorous acid water generating device, or strongly acidic hypochlorous acid water generating device, or a device that requires the installation of complex and expensive auxiliary equipment.

[0032]

[0033] Figure 1 is a graph showing various uses of hypochlorous acid water according to its pH range.

[0034] Figure 2 illustrates an example of a manufacturing device for implementing the manufacturing method of the present invention.

[0035] Figures 3 to 5 are conceptual diagrams illustrating an electrolysis process according to one embodiment of the present invention.

[0036]

[0037] Hereinafter, the present invention will be described in more detail.

[0038] The purpose of the present invention is to provide a composite manufacturing method of hypochlorous acid water and sodium hypochlorite, which can simultaneously manufacture hypochlorous acid water and sodium hypochlorite using a hybrid manufacturing device in which a diaphragm-type electrolysis space and a diaphragm-less electrolysis space are integrated, as disclosed in Patent Registration No. 10-2489596 developed by the inventors of the present invention.

[0039] The above registered patent discloses that hypochlorous acid water or sodium hypochlorite or a combination thereof can be manufactured and produced by the provided manufacturing device, and that hypochlorous acid water, sodium hypochlorite, etc. can be manufactured in various pH ranges. However, there was a problem in that the above registered patent did not present the specific manufacturing process characteristics such as the manufacturing process and special limitation conditions for each process. Accordingly, the present inventors have established an optimal manufacturing method capable of producing hypochlorous acid water or / and sodium hypochlorite in a combination using the manufacturing device developed by the present inventors through numerous repeated experiments, and intend to present a manufacturing method capable of producing hypochlorous acid water or / and sodium hypochlorite in a combination established through such experiments.

[0040] The attached drawing, Figure 2, illustrates an example of a manufacturing device for implementing the composite manufacturing method of hypochlorous acid water and sodium hypochlorite according to the present invention. Figure 2 is a schematic cross-sectional view showing the manufacturing device.

[0041] According to FIG. 2, the manufacturing device used in the present invention is installed with an anode (30), a first cathode (10) facing one side of the anode (30), and a second cathode (20) facing the other side of the anode (30), wherein the anode (30), the first cathode (10), and the second cathode (20) are installed so as to be connected to separate constant current supply lines (51, 52, 53) to which voltage can be applied from the outside, respectively; and a partition (40) is installed between the anode (30) and the first cathode (10), thereby separating a first space (11) in which the first cathode (10) is formed, and a second space (12) in which the anode (30) is formed; A partition is not installed between the anode (30) and the second cathode (20), so that a partition-less third space (13) is formed in which the anode (30) and the second cathode (20) face each other; an inflow water supply unit (62) and a strong alkaline electrolytic water discharge unit (64) are separately installed in the first space (11); and an electrolyte supply unit (61) and a hypochlorous acid water discharge unit (63) are separately installed in the second space (12) or the third space (13).

[0042] The present inventors have completed the composite manufacturing method of hypochlorous acid water and sodium hypochlorite of the present invention by using a manufacturing device having the above-described structure.

[0043] More specifically, the method for producing a composite of hypochlorous acid water and sodium hypochlorite according to the present invention is produced using a hybrid hypochlorous acid water and sodium hypochlorite production device, in which an anode (30), a first cathode (10) facing one side of the anode (30), and a second cathode (20) facing the other side of the anode (30) are installed inside, a partition (40) is installed between the anode (30) and the first cathode (10), thereby separating a first space (11) in which the first cathode (10) is formed and a second space (12) in which the anode (30) is formed; and a partition is not installed between the anode (30) and the second cathode (20), thereby forming a partition-less third space (13) formed by the anode (30) and the second cathode (20) facing each other.

[0044] An electrolyte manufacturing step for manufacturing an electrolyte of a certain concentration in an electrolyte manufacturing tank;

[0045] A step of supplying the electrolyte through the electrolyte supply part (61) formed in the center of the anode (30) and supplying inflow water through the inflow water supply part (62) formed in the first space part (11) where the diaphragm (40) is installed to form an electrolyte mixture maintaining a constant concentration;

[0046] After the above electrolyte mixture is formed, a step of applying voltage to the positive electrode (30), the first negative electrode (10), and the second negative electrode; and

[0047] It comprises a step of reacting an electrolyte mixture by applying the above voltage to obtain hypochlorous acid water or / and sodium hypochlorite.

[0048]

[0049] According to the present invention, the electrolyte of the electrolyte preparation step uses a sodium chloride aqueous solution prepared by mixing 0.6 to 2 parts by weight of sodium chloride with 100 parts by weight of distilled water. At this time, if the mixing amount of the sodium chloride is less than 0.6 parts by weight, there is no great difficulty in producing hypochlorous acid water or sodium hypochlorite, which is the purpose of the present invention. However, there is a disadvantage in that the voltage applied to the positive and negative electrodes set below must be set very high to complete the present invention, which increases the production cost, and there may be problems such as a problem in that the production time becomes long and the pH of the hypochlorous acid water or sodium hypochlorite produced must be adjusted separately. If it exceeds 2 parts by weight, there is a problem that the concentration of sodium chloride is too high, so it takes a long time to produce the desired hypochlorous acid water or sodium hypochlorite, and there may also be a problem that the pH range of the produced hypochlorous acid water or sodium hypochlorite may go beyond the desired pH range.

[0050] For reference, hypochlorous acid water can be divided into weakly acidic hypochlorous acid water with a pH range of 3 to 5 and slightly acidic hypochlorous acid water with a pH range of 5 to 6.5, and sodium hypochlorite is a substance with a pH range of 7.8 to 9.0. Each hypochlorous acid water and sodium hypochlorite are used for disinfection, and the scope of their use and industry varies depending on the pH range.

[0051] The present invention for producing such a target object in a complex manner has the advantage that the user can select and manufacture it according to the industrial or household use, or the use by industry, and another problem is that when the range of the mixing amount of the sodium chloride aqueous solution, which is the electrolytic water, is outside the critical range, the user may have difficulty selecting it, and a substance other than the selected target object may be produced at the production site, and a separate intermediate adjustment process (pH, dilution process, etc.) may be required to meet the conditions of the selected target object substance, which complicates the production process and increases the production speed, which may become a factor in lowering productivity.

[0052]

[0053] According to the present invention, in the step of forming the electrolyte mixture, the electrolyte and the inflow water are supplied using a constant pressure pump, and the amount of inflow is supplied in a weight ratio of 100:50 to 100:100 for the inflow water and the electrolyte. It is preferable to control the amounts of the inflow water and the electrolyte so that the electrolyte mixture has a sodium chloride concentration in a range of 0.008556 to 0.02567 mol.

[0054] At this time, if the weight ratio of the input water and electrolyte is out of the range, the concentration of the electrolyte mixture produced will be problematic in that it will exceed the critical value. If the concentration of the electrolyte mixture is less than 0.008556 mol, an excessive voltage may need to be applied to the anode and cathode when voltage is applied, or the production of the intended final product may not occur properly due to the applied voltage. If it exceeds 0.02567 mol, the pH concentration of the final product produced may be too high or too low, and may exceed the pH concentration range required for hypochlorous acid water or sodium hypochlorite product. Therefore, there may be a disadvantage in that a separate subsequent process for adjusting the pH concentration is required.

[0055] According to the present invention, the step of applying voltage has a technical feature in that it selects one of the voltage applying methods among applying voltage only to the anode (30) and the first cathode (10), applying voltage only to the anode (30) and the second cathode (20), or applying voltage simultaneously to the anode (30), the first cathode (10), and the second cathode (20).

[0056] Preferably, the voltage applied to the anode (30) is 7.93077399675×10 21 ~8.8119711075×10 21 eV, the voltage applied to the first cathode (10) is 7.2097945425×10 20 ~8.010882825×10 20 eV, the voltage applied to the second cathode (20) is 7.2097945425×10 21 ~8.010882825×10 21 The voltage is applied to satisfy eV, and more preferably, the voltage difference applied between the anode and cathode is 7.2097945425×10 20 ~8.010882825×10 21 It is applied so as to have a voltage difference in the range of eV.

[0057] According to the method of the present invention, it is possible to manufacture and produce hypochlorous acid water and sodium hypochlorite having various pHs, such as the voltage difference applied between the anode and cathode, the range of voltage, and the selection of the cathode to which the voltage is applied.

[0058] To explain further with reference to the attached drawings, FIG. 3 is an example of a case where voltage is applied between the anode (30) and the second cathode (20), and the space where the second cathode (20) is formed is a diaphragm-less third space (13) without a diaphragm installed, which may also be referred to as a diaphragm-less electrolytic cell. Accordingly, a diaphragm-less electrolysis reaction occurs between the anode (30) and the second cathode (20). As a result, hypochlorite ions are generated in the diaphragm-less third space (13) formed where the anode (30) and the second cathode (20) face each other, and since the hypochlorite ions are chemically unstable, they combine with sodium ions to produce alkaline sodium hypochlorite.

[0059] At this time, the voltage applied to the anode (30) and the second cathode (20) is 7.93077399675×10 21 ~8.8119711075×10 21 eV, the voltage applied to the second cathode (20) is 7.2097945425×10 21 ~8.010882825×10 21 Its characteristic is that a voltage is applied to satisfy eV. Preferably, the voltage applied to the anode (30) and the second cathode (20) is 7.2097945425×10 20 ~8.010882825×10 21 It is applied so that the voltage difference does not exceed the range of eV.

[0060] At this time, the substance produced in the membrane-less electrolysis tank is sodium hypochlorite and has an acidity within the pH range of 7.8 to 9.0. In addition, strongly alkaline electrolyzed water is produced on the other side of the membrane-less electrolysis tank and discharged to the outside.

[0061]

[0062] Figure 4 shows a reaction when voltage is applied between the anode (30) and the first cathode (10). A membrane is formed between the anode (30) and the first cathode (10), so that a membrane-type electrolysis reaction occurs. At this time, strongly alkaline electrolyzed water is generated in the first space (11) on the side of the first cathode (10), and strongly acidic hypochlorous acid water is generated in the second space (12) on the side of the anode (30).

[0063] At this time, the voltage applied to the anode (30) and the first cathode (10) is 7.93077399675×10 21 ~8.8119711075×10 21 eV, the voltage applied to the first cathode (10) is 7.2097945425×10 20 ~8.010882825×10 20 Determined within eV, preferably the anode (30) and the first cathode (10) are 7.2097945425×10 20 ~8.010882825×10 21 It is applied so that the voltage difference does not exceed the range of eV.

[0064]

[0065] At this time, the acidic hypochlorous acid water produced is strongly acidic hypochlorous acid water, and hypochlorous acid water with a pH of 3 or lower is produced. The hypochlorous acid water produced in this way can undergo a post-processing process to adjust its acidity according to the producer's or user's choice, processing it into weakly acidic hypochlorous acid water or slightly acidic hypochlorous acid water.

[0066]

[0067] FIG. 5 shows a case in which voltage is applied to all of the anode (30) and the first cathode (10) and the second cathode (20) according to one embodiment of the present invention, and a reaction environment is created so that a diaphragm-type electrolysis reaction in the first space (11) formed of the first cathode (10) and a diaphragm-less electrolysis reaction in the second space (12) where the second cathode (20) is formed occur simultaneously, so that weakly acidic hypochlorous acid water or slightly acidic hypochlorous acid water is generated in the second space (12).

[0068] At this time, the voltage applied to the anode (30) and the first cathode (10) and the second cathode (20) is 7.93077399675×10 21 ~8.8119711075×10 21 eV, the voltage applied to the first cathode (10) is 7.2097945425×10 20 ~8.010882825×10 20 eV, the voltage applied to the second cathode (20) is 7.2097945425×10 21 ~8.010882825×10 21 The voltage is applied to satisfy eV, and preferably, the voltage difference applied between the anode and cathode is 7.2097945425×10 20 ~8.010882825×10 21 It is applied so that the voltage difference does not exceed the range of eV.

[0069] At this time, the main feature of the technology is that the first cathode and the second cathode apply different voltage ranges.

[0070] In this case, that is, when voltage is applied simultaneously to the anode and the first cathode and the second cathode, weakly acidic hypochlorous acid water or slightly acidic hypochlorous acid water is generated according to the reaction of the electrolyte in the diaphragm-less electrolytic cell, and strongly alkaline electrolytic water is generated and discharged on the other side of the diaphragm in the diaphragm-less electrolytic cell.

[0071] According to the present invention, as shown in FIGS. 3 to 5, when a voltage is applied to the positive and negative electrodes to produce hypochlorous acid water or sodium hypochlorite, the strongly alkaline electrolytic water produced and discharged at the same time is transferred to a separate tank for storage, and then a certain amount of the electrolytic water produced in the electrolyte production step of the present invention is mixed to produce the electrolyte of the present invention, thereby producing and using the electrolyte of the present invention.

[0072]

[0073] As described above, in the present invention, the hypochlorous acid water discharged through the hypochlorous acid water discharge unit (63) is such that when voltage is applied only to the anode (30) and the first cathode (10), acidic hypochlorous acid water is produced and discharged; when voltage is applied only to the anode (30) and the second cathode (20), alkaline sodium hypochlorite is produced and discharged; and when voltage is applied to all of the anode (30) and the first cathode (10) and the second cathode (20), weakly acidic or slightly acidic hypochlorous acid water is produced and discharged.

[0074] The above method for producing a composite of hypochlorous acid water and sodium hypochlorite according to the present invention was completed using a hybrid hypochlorous acid water and sodium hypochlorite production device developed by the inventors of the present invention, and can produce hypochlorous acid water or / and sodium hypochlorite having various pHs by selectively applying voltage to the anode and cathode.

[0075] In addition, while the voltage applied when producing conventional hypochlorous acid water or sodium hypochlorite must be produced by applying the same voltage between the anode and the cathode, in the present invention, effective hypochlorous acid water or sodium hypochlorite water can be produced even by applying a voltage in a range lower than the conventionally applied voltage, and the voltage applied to the anode and the first cathode, the anode and the second cathode, the anode and the first cathode, and the second cathode can be selectively applied according to the user's preference, so that the production process can be controlled to have various pHs, thereby ensuring a variety of uses.

[0076] In addition, in order to obtain a more efficient electrolysis effect, a voltage difference between the anode and cathode can be created to selectively produce hypochlorous acid water or sodium hypochlorite hydrochloride having various pH values.

Claims

1. A hybrid hypochlorous acid water and sodium hypochlorite manufacturing device is used to manufacture a sodium hypochlorite solution, in which an anode (30), a first cathode (10) facing one side of the anode (30), and a second cathode (20) facing the other side of the anode (30) are installed inside, a partition (40) is installed between the anode (30) and the first cathode (10), thereby separating a first space (11) in which the first cathode (10) is formed and a second space (12) in which the anode (30) is formed; and a partition is not installed between the anode (30) and the second cathode (20), thereby forming a partition-less third space (13) in which the anode (30) and the second cathode (20) face each other. An electrolyte manufacturing step for manufacturing an electrolyte of a certain concentration in an electrolyte manufacturing tank; A step of supplying the electrolyte through the electrolyte supply part (61) formed in the center of the anode (30) and supplying inflow water through the inflow water supply part (62) formed in the first space part (11) where the diaphragm (40) is installed to form an electrolyte mixture maintaining a constant concentration; After the above electrolyte mixture is formed, a step of applying voltage to the positive electrode (30), the first negative electrode (10), and the second negative electrode; and A method for producing a composite of hypochlorous acid water and sodium hypochlorite, characterized in that it comprises a step of reacting an electrolyte mixture by applying the above voltage to obtain hypochlorous acid water and / or sodium hypochlorite.

2. In paragraph 1, A method for producing a composite of hypochlorous acid water and sodium hypochlorite, characterized in that the electrolyte of the above electrolyte production step is a sodium chloride aqueous solution prepared by mixing 0.6 to 2 parts by weight of sodium chloride with 100 parts by weight of distilled water.

3. In paragraph 1, A method for producing a composite of hypochlorous acid water and sodium hypochlorite, characterized in that the step of forming the electrolyte mixture is such that the electrolyte and the inflow water are supplied using a constant pressure pump, the inflow amount is supplied in a weight ratio of the inflow water and the electrolyte in the range of 100:50 to 100:100, and the electrolyte mixture has a sodium chloride concentration in the range of 0.008556 to 0.02567 mol.

4. In paragraph 1, A method for producing a composite of hypochlorous acid water and sodium hypochlorite, characterized in that the step of applying the voltage comprises selecting one of the voltage applying methods among applying the voltage only to the anode (30) and the first cathode (10), applying the voltage only to the anode (30) and the second cathode (20), or applying the voltage simultaneously to the anode (30), the first cathode (10), and the second cathode (20).

5. In paragraph 1 or 4, The voltage applied to the above anode (30) is 7.93077399675×10 21 ~8.8119711075×10 21 eV, the voltage applied to the first cathode (10) is 7.2097945425×10 20 ~8.010882825×10 20 eV, the voltage applied to the second cathode (20) is 7.2097945425×10 21 ~8.010882825×10 21 A method for producing a composite of hypochlorous acid water and sodium hypochlorite, characterized in that voltage is selectively applied to the anode and the first cathode, or the anode and the second cathode, or the anode and the first and second cathodes, so as to satisfy eV.

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