WO2016039190A1 - 電解式二酸化塩素ガス製造装置 - Google Patents
電解式二酸化塩素ガス製造装置 Download PDFInfo
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- WO2016039190A1 WO2016039190A1 PCT/JP2015/074567 JP2015074567W WO2016039190A1 WO 2016039190 A1 WO2016039190 A1 WO 2016039190A1 JP 2015074567 W JP2015074567 W JP 2015074567W WO 2016039190 A1 WO2016039190 A1 WO 2016039190A1
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- chlorine dioxide
- dioxide gas
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/17—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/24—Halogens or compounds thereof
- C25B1/26—Chlorine; Compounds thereof
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B15/00—Operating or servicing cells
- C25B15/02—Process control or regulation
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B15/00—Operating or servicing cells
- C25B15/08—Supplying or removing reactants or electrolytes; Regeneration of electrolytes
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/17—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
- C25B9/19—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/60—Constructional parts of cells
- C25B9/63—Holders for electrodes; Positioning of the electrodes
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B11/00—Oxides or oxyacids of halogens; Salts thereof
- C01B11/02—Oxides of chlorine
- C01B11/022—Chlorine dioxide (ClO2)
Definitions
- the present invention relates to an electrolytic chlorine dioxide gas production apparatus.
- Chlorine dioxide gas is a safe gas for animal living bodies at low concentrations (for example, 0.1 ppm or less), but even at such low concentrations, inactivation action against microorganisms such as bacteria, fungi, and viruses, It is known to have a deodorizing action and the like.
- Patent Document 1 A method for producing chlorine dioxide by electrolyzing an electrolyte containing chlorite is known (Patent Document 1).
- electrolysis is not performed. If it is continued, the pH of the electrolyte will gradually increase, so the electrolysis efficiency (chlorine dioxide generation efficiency) will decrease. If an acid is added to lower the pH, the storage stability of the electrolyte will be lost. As a result, the electrolyte solution deteriorates with time.
- Patent Document 2 a method of generating chlorine dioxide gas by performing electrolysis while maintaining the pH of the electrolytic solution during electrolysis at 4 to 8 has been proposed (Patent Document 2).
- the generation method of chlorine dioxide gas described in Patent Document 2 can generate chlorine dioxide gas with high efficiency over a long period of time as compared with the conventional generation method of chlorine dioxide gas.
- the present inventors have stated that the chlorine dioxide gas generation method described above is used because chlorine dioxide gas is a gas that is safe for the animal body at low concentrations, but can be harmful to the animal body at high concentrations.
- a chlorine dioxide gas production device capable of accurately controlling the amount of chlorine dioxide generated was necessary.
- the present invention is a chlorine dioxide gas production apparatus, the apparatus comprises an electrolysis chamber, a liquid level measurement chamber, and a bubbling gas supply device, the electrolysis chamber and the liquid level measurement chamber, Electrolytic solution and gas are respectively included.
- the electrolytic solution includes a chlorite aqueous solution, and the electrolytic chamber and the liquid level measuring chamber have substantially the same height as the electrolytic solution contained in each chamber.
- the electrolytic chamber includes a cathode and an anode.
- the cathode and the anode are fixed to a spacer, and the electrolysis chamber has a bubbling gas for supplying gas from outside the electrolysis chamber to the electrolytic solution in the electrolysis chamber by bubbling.
- a supply unit is provided in the electrolytic solution, wherein the bubbling gas supply unit is connected to the bubbling gas supply device disposed outside the electrolytic chamber through a pipe, and the liquid level measuring chamber is There is provided a chlorine dioxide gas production apparatus, characterized by comprising means for measuring a liquid level.
- the “bubbling gas supply unit” in this specification is also a part that discharges the gas supplied from the bubbling gas supply device, it may be referred to as a “bubbling gas discharge unit” from such a viewpoint.
- the bubbling gas supply unit is disposed below the spacer, and the spacer hinders the bubbled gas from approaching the cathode and the anode in the lower part. It is comprised by these.
- the spacer maintains a predetermined distance between the cathode and the anode.
- the predetermined interval is 1 mm to 50 mm.
- the means for measuring the liquid level includes at least two electrodes having different lengths from each other, and measuring each of the electrodes by measuring a current between the different electrodes. It is characterized by including the apparatus for confirming whether it is exposed with respect to the liquid level.
- the manufacturing apparatus further comprises an electrolyte supply tank,
- the electrolytic chamber is connected to the electrolytic solution supply tank through an electrolytic solution supply pipe.
- the manufacturing apparatus further comprises an electrolyte discharge tank, The electrolytic chamber and / or the liquid level measuring chamber is connected to the electrolytic solution discharge tank through an electrolytic solution discharge pipe below the liquid level.
- the manufacturing apparatus further includes a chlorine dioxide gas blower fan, and the electrolysis chamber and / or the liquid level measurement chamber pass through the chlorine dioxide gas discharge pipe above the liquid level. It is connected to a chlorine dioxide gas blower fan.
- a chlorine dioxide gas production apparatus comprising an electrolysis chamber, a liquid level measurement chamber, a bubbling chamber, and a bubbling gas supply device, wherein the electrolysis chamber, the liquid
- Each of the surface level measurement chamber and the bubbling chamber contains an electrolytic solution and a gas (a gas above the electrolytic solution), where the electrolytic solution contains a chlorite aqueous solution
- the liquid level measuring chamber and the bubbling chamber are directly or indirectly connected to each other through gas piping above the respective liquid levels so that the height of the electrolyte contained in each chamber is substantially equal.
- the electrolysis chamber comprising a cathode and an anode, wherein the cathode and The pole is fixed to a spacer, and the bubbling chamber is provided with a bubbling gas supply unit in the electrolytic solution for supplying gas from outside the bubbling chamber to the electrolytic solution in the bubbling chamber.
- the bubbling gas supply section is connected to the bubbling gas supply device disposed outside the bubbling chamber through a pipe, and the liquid level measuring chamber is a means for measuring the liquid level.
- the apparatus for producing chlorine dioxide gas is provided.
- the manufacturing apparatus further includes an electrolytic solution supply tank, and the electrolytic chamber is connected to the electrolytic solution supply tank through an electrolytic solution supply pipe.
- the manufacturing apparatus further includes an electrolytic solution discharge tank, and at least one of the electrolytic chamber, the liquid level measuring chamber, and the bubbling chamber is below the liquid level. And the electrolyte solution discharge tank is connected to the electrolyte solution discharge tank.
- the manufacturing apparatus further includes a chlorine dioxide gas blower fan, and at least one of the electrolytic chamber liquid level measuring chamber and the bubbling chamber is above the liquid level.
- the chlorine dioxide gas blower fan is connected to the chlorine dioxide gas blower fan.
- the electrolytic chamber further includes a bubbling gas supply unit in the electrolytic solution for supplying gas from outside the electrolytic chamber to the electrolytic solution in the electrolytic chamber by bubbling.
- the bubbling gas supply unit is connected to the bubbling gas supply device disposed outside the electrolysis chamber through a pipe.
- the bubbling gas supply unit provided in the electrolysis chamber is disposed below the spacer, and the spacer is provided below the bubbling gas provided in the electrolysis chamber.
- the gas bubbled from the supply unit is configured to be inhibited from approaching the cathode and the anode.
- no diaphragm is present between the cathode and the anode.
- FIG. 1 is a schematic diagram of a chlorine dioxide gas production apparatus according to an embodiment of the present invention.
- FIG. 2 is a schematic diagram of a two-chamber chlorine dioxide gas production apparatus according to an embodiment of the present invention.
- FIG. 3 is a schematic view of a three-chamber chlorine dioxide gas production apparatus, which is an embodiment of the present invention.
- FIG. 4 is a schematic view of a three-chamber chlorine dioxide gas production apparatus, which is an embodiment of the present invention.
- FIG. 5 shows a schematic diagram of a spacer in the chlorine dioxide gas production apparatus according to one embodiment of the present invention.
- FIG. 6 shows a schematic diagram of a spacer in the chlorine dioxide gas production apparatus according to one embodiment of the present invention.
- FIG. 7 shows a schematic diagram of a spacer in the chlorine dioxide gas production apparatus according to one embodiment of the present invention.
- the chlorine dioxide gas production apparatus of the present invention may be an apparatus for producing chlorine dioxide substantially, and is not intended to exclude the production of other substances simultaneously with the production of chlorine dioxide.
- the chlorine dioxide gas production apparatus of the present invention includes an electrolysis chamber, a liquid level measurement chamber, and a bubbling gas supply device, and may further include a bubbling chamber.
- a chlorine dioxide gas production apparatus that includes two chambers, an electrolysis chamber and a liquid level measurement chamber, and a chlorine dioxide gas production apparatus that includes three chambers: an electrolysis chamber, a liquid level measurement chamber, and a bubbling chamber. It's okay.
- at least one of an electrolytic chamber, a liquid level measuring chamber, a bubbling chamber, and / or a chamber used for other purposes may be further added to form four or more chambers.
- Each chamber contains electrolyte and gas (gas above the electrolyte), and above each liquid level so that the height of the electrolyte contained in each chamber is substantially equal. They are connected to each other through the gas pipes and to each other through the electrolyte pipes below the respective liquid surfaces.
- the mode of connection of each chamber is not limited, and the height of the electrolyte contained in each chamber Are directly or indirectly connected to each other through a gas pipe above each liquid level and directly or indirectly to each other through an electrolyte pipe below each liquid level As long as it is connected to
- the kind of gas (gas) which exists above electrolyte solution in each chamber is not specifically limited, It is preferable that it is a gas (gas) which does not react chemically with chlorine dioxide gas.
- the electrolysis chamber in the chlorine dioxide gas production apparatus of the present invention is not particularly limited as long as it can electrolyze a solution containing chlorite, but is preferably a diaphragmless electrolysis chamber having a cathode and an anode.
- the “electrolytic chamber of non-membrane” refers to a one-pack type electrolytic chamber in which the electrolyte solution on the cathode side and the electrolyte solution on the anode side are not separated by a diaphragm.
- the cathode material includes titanium, stainless steel, nickel, nickel-chromium alloy, or other valve metal.
- the anode material is a platinum coating material obtained by electroplating platinum on a noble metal such as platinum, gold, palladium, iridium, rhodium or ruthenium, graphite, graphite felt, multilayer graphite cloth, graphite woven cloth, carbon, or titanium, Examples thereof include electrodes made of a valve metal oxide of titanium, tantalum, niobium, or zirconium, and those coated with an electrode catalyst are preferably used.
- the electrode area is increased to reduce the current density because chlorine dioxide can be generated efficiently.
- 1 A / dm 2 or less is preferable, 0.8 A / dm 2 or less is more preferable, and 0.6 A / dm 2 or less is more preferable.
- the electrolysis current value may be measured using the cathode and anode of the electrolysis chamber.
- the amount of chlorine dioxide generated during the electrolysis reaction and the electrolysis current value are always in a proportional relationship. That is, the amount of chlorine dioxide generated can be estimated indirectly by monitoring the electrolysis current value in the electrolysis chamber. For example, when the electrolytic current value is reduced, chlorite in the electrolyte is consumed by electrolysis, and the amount of chlorine dioxide generated is reduced by reducing the concentration of chlorite in the electrolyte. Therefore, it is possible to improve the amount of chlorine dioxide generated by supplying a new electrolyte.
- the electrolyte used in the chlorine dioxide production gas apparatus of the present invention is not limited as long as it contains chlorite, but in particular, one containing chlorite, alkali chloride, and a pH adjusting agent is preferably used. It is done.
- Examples of the chlorite used in the present invention include alkali metal chlorite and alkaline earth metal chlorite.
- alkali metal chlorite include sodium chlorite, potassium chlorite, and lithium chlorite.
- alkaline earth metal chlorite include calcium chlorite, magnesium chlorite, Barium chlorate is mentioned. Of these, sodium chlorite and potassium chlorite are preferable, and sodium chlorite is most preferable from the viewpoint of easy availability.
- These chlorinated oxygen alkalis may be used individually by 1 type, and may use 2 or more types together.
- the ratio of alkali chlorite in the electrolytic solution is preferably 0.1% by weight to 30% by weight.
- alkali chloride used in the present invention examples include potassium chloride, sodium chloride, lithium chloride, and calcium chloride. These may be used alone or in combination.
- the proportion of alkali chloride in the electrolytic solution is preferably 1% by weight or more, and more preferably 2% by weight or more (less than solubility). If it is less than 1% by weight, chlorine gas cannot be generated stably, and there is a possibility that the generation of chlorine dioxide will be hindered. Increasing the alkali chloride concentration in the electrolytic solution is preferable from the viewpoint that chlorine dioxide can be efficiently generated. However, if the solubility is exceeded, alkali chloride is precipitated in the electrolytic solution, which has an adverse effect. Therefore, the proportion of alkali chloride in the electrolytic solution is preferably 20% by weight or less.
- Examples of the pH adjuster used in the present invention include citric acid, fumaric acid, formic acid, lactic acid, phosphoric acid, phosphoric acid dihydrogen alkali salt (sodium salt, potassium salt, etc.), hydrogen phosphate dialkali salt (sodium salt). And potassium salts), tartaric acid and butyric acid. These may be used alone or in combination of two or more.
- the ratio of the pH adjuster in the electrolytic solution can be appropriately adjusted by those skilled in the art depending on the type and solubility of the acid used (acidic substance, described later) or the solubility of the compound purified by electrolysis.
- the acid to be used (acidic substance, described later) neutralizes the alkali hydroxide generated by electrolysis, calculate the required amount from the obtained chemical formula, and use an amount of acid corresponding to it. it can.
- the acid is potassium dihydrogen phosphate
- the acid is citric acid Is 2.0 to 2.2% by weight of citric acid + 6.5 to 7.0% by weight of dipotassium hydrogen phosphate.
- the electrolyte is kept in a state where the pH of the electrolytic solution is maintained at 4.0 to 9.0, preferably pH 5.0 to 8.5, more preferably pH 5.8 to 8.0.
- the pH of the electrolytic solution is maintained at 4.0 to 9.0, preferably pH 5.0 to 8.5, more preferably pH 5.8 to 8.0.
- the electrolyte used in the chlorine dioxide gas production apparatus of the present invention is stored at a pH of 8.0 or more (preferably pH 9.0 or more) before use of the apparatus, and an acidic substance is added immediately before use of the apparatus,
- the pH of the electrolytic solution is preferably 4.0 to 9.0.
- Examples of acidic substances used in the present invention include hydrochloric acid, sulfuric acid, sulfurous acid, thiosulfuric acid, nitric acid, nitrous acid, iodic acid, phosphoric acid, alkali dihydrogen phosphate (sodium salt, potassium salt, etc.), phosphorous acid ⁇
- Inorganic acids such as sodium hydrogen sulfate, potassium hydrogen sulfate, chromic acid, formic acid, acetic acid, propionic acid, butyric acid, lactic acid, pyruvic acid, citric acid, malic acid, tartaric acid, gluconic acid, glycolic acid, fumaric acid, malonic acid -Organic acids such as maleic acid, oxalic acid, succinic acid, acrylic acid, crotonic acid, oxalic acid, glutaric acid, etc.
- an inorganic acid more preferably a phosphate, and most preferably potassium dihydrogen phosphate.
- These acidic substances may be used alone or in combination of two or more.
- the acidic substance used in the present invention may be a solid acidic substance or an acidic substance in an aqueous solution state, but from the viewpoint of avoiding undissolved residue in the electrolytic solution, the acidic substance in an aqueous solution state is More preferred.
- the chlorine dioxide gas production apparatus of the present invention includes a liquid level measuring device having means for measuring the liquid level of the electrolytic solution.
- a liquid level measuring device having means for measuring the liquid level of the electrolytic solution.
- the “means for measuring the liquid level” in the present invention those known to those skilled in the art can be used.
- at least two electrodes having different lengths from each other and between the different electrodes It may be a means including a device for confirming whether or not each electrode is exposed to the liquid surface by measuring the current. When an electrode is exposed to the liquid level, no current flows through the electrode, so that it can be understood that the liquid level is lower than the electrode.
- liquid level detection electrode may be referred to as “liquid level measurement electrode”.
- the chlorine dioxide gas production apparatus of the present invention includes a bubbling gas supply device.
- the bubbling gas supply device is connected to a bubbling gas supply unit provided in the electrolytic solution through a pipe, and supplies air or an inert gas (for example, nitrogen, argon, etc.) from the bubbling gas supply unit to the electrolytic solution.
- air or an inert gas for example, nitrogen, argon, etc.
- Chlorine dioxide produced by electrolysis in the electrolysis chamber immediately dissolves in the electrolytic solution, but can be easily taken out as chlorine dioxide gas by bubbling air or an inert gas into the electrolytic solution.
- the amount of gas (gas concentration) of chlorine dioxide taken out from the electrolyte as chlorine dioxide gas is adjusted by adjusting the amount of ventilation (flow rate) per unit time of the bubbling gas supplied from the bubbling gas supply device. be able to.
- the flow rate of the bubbling gas supplied from the bubbling gas supply device is increased, and when the amount of chlorine dioxide gas is to be decreased, the amount is supplied from the bubbling gas supply device. This can be achieved by reducing the flow rate of the bubbling gas produced.
- the bubbling gas supply device can be arbitrarily selected by those skilled in the art as long as it has a function of supplying air or an inert gas into the electrolytic solution, and may be an air pump, for example.
- liquid level fluctuation due to bubbling and chattering of the liquid level detection electrode will hinder accurate detection of the liquid level. It is preferable to be provided outside the surface level measurement chamber.
- the chlorine dioxide gas production apparatus of the present invention may include a bubbling chamber for bubbling an electrolytic solution in addition to the electrolytic chamber and the liquid level measuring chamber.
- the bubbling chamber does not include a cathode and an anode for electrolysis and an electrode for liquid level detection, and a bubbling for supplying gas from outside the bubbling chamber to the electrolyte in the bubbling chamber by bubbling
- a gas supply unit is provided in the electrolyte solution, and the bubbling gas supply unit is connected to the bubbling gas supply device disposed outside the bubbling chamber through a pipe.
- the electrolytic chamber In addition to the electrolytic chamber and the liquid level measurement chamber, by providing a bubbling chamber for bubbling the electrolytic solution, in the electrolytic chamber, bubbles are attached to the cathode and / or the anode, and electrolysis is inhibited.
- the liquid level measurement chamber it is possible to avoid the influence of the liquid level fluctuation of the electrolytic solution that may be caused by bubbling and chattering of the liquid level detection electrode, and to accurately detect the liquid level.
- the electrolytic solution in the electrolytic chamber may further include a bubbling gas supply unit connected to the bubbling gas supply apparatus. That is, you may provide the bubbling gas supply part connected to the bubbling gas supply apparatus in both a bubbling chamber and an electrolysis chamber.
- the positional relationship between the chambers can be freely changed by adjusting the lengths of the gas piping and / or the electrolyte piping connecting the chambers. For example, by extending the gas pipe and / or the electrolyte pipe connecting the bubbling chamber and other chambers, liquid level fluctuations and electrode vibrations associated with bubbling in the bubbling chamber may be less likely to be transmitted to other chambers. it can.
- the cathode and anode in the electrolysis chamber of the chlorine dioxide gas production apparatus of the present invention are fixed by a spacer (sometimes referred to as an electrode fixing jig).
- the spacer maintains a predetermined distance between the cathode and the anode in order to prevent a short circuit between the cathode and the anode.
- the “predetermined distance” is, for example, 1 mm to 50 mm, preferably 2 mm to 10 mm. Good.
- the spacer material can be freely selected by those skilled in the art as long as it is an insulating material that does not corrode by chlorine dioxide. For example, vinyl chloride, fluororesin, acrylic, or the like can be used.
- the spacer may be formed integrally with the electrolytic cell.
- the bubbling gas supply unit when the bubbling gas supply unit is provided in the electrolysis chamber, the bubbling gas supply unit is disposed below the spacer, and the spacer is bubbled in the lower part thereof. It is configured to inhibit the gas from approaching the cathode and anode of the electrolysis chamber. By comprising in this way, it can prevent that the bubble of the gas supplied from the bubbling gas supply part adheres to a cathode and an anode, and inhibits electrolysis.
- the spacer is preferably configured so as not to hinder the flow of the electrolytic solution in the electrolytic chamber. For example, with respect to the direction of the portion where the electrolytic solution is discharged from the portion where the electrolytic solution is supplied in the electrolytic chamber. It is preferable to configure so as not to hinder the flow of the electrolyte. As a result, the stagnation of the electrolytic solution can be prevented, and the flow of the electrolytic solution in the vicinity of the cathode and the anode can be improved.
- the chlorine dioxide gas production apparatus of the present invention may include an electrolytic solution supply tank for supplying an electrolytic solution to the electrolytic chamber.
- the electrolytic solution supply tank is connected to the electrolytic chamber through the electrolytic solution supply pipe.
- it is good also as composition which supplies electrolyte solution in an electrolysis room from an electrolyte solution supply tank using a feed pump.
- the amount of the electrolytic solution supplied from the electrolytic solution supply tank to the electrolytic chamber can be measured by providing an integrated flow meter in the electrolytic solution supply pipe.
- the chlorine dioxide gas production apparatus of the present invention may include an electrolyte discharge tank for discharging the electrolyte used for electrolysis.
- the electrolytic solution discharge tank is connected to the electrolytic chamber, the liquid level measurement chamber, and / or the bubbling chamber through the electrolytic solution discharge pipe below the electrolytic solution level.
- the electrolyte solution may be discharged from the electrolytic chamber, the liquid level measuring chamber, and / or the bubbling chamber to the electrolytic solution discharge tank using a drain pump.
- the amount of the electrolytic solution discharged to the electrolytic solution discharge tank can be measured by providing an integrated flow meter in the electrolytic solution discharge pipe.
- the electrolytic current value measured by the electrode for electrolysis and / or the integrated flow value measured by the integrated flow meter installed in the electrolyte supply pipe and the electrolyte discharge pipe are simultaneously monitored.
- it can be set as the system which adjusts the quantity of the electrolyte solution supplied or discharged
- the system can be an automatic control system using a program that adjusts the amount of the electrolyte supplied or discharged so that the value of the electrolytic current falls within a certain range.
- an indicator is installed outside the apparatus, and the indicator is installed in the electrolytic current value measured with the electrode for electrolysis and / or in the electrolyte supply pipe and the electrolyte discharge pipe.
- the integrated flow rate value of the electrolyte measured by the integrated flow meter can also be displayed.
- the chlorine dioxide gas production apparatus of the present invention may include a chlorine dioxide gas blower fan for releasing chlorine dioxide gas generated in the apparatus to the outside of the apparatus.
- the chlorine dioxide gas blowing fan is connected to the electrolytic chamber and / or the liquid level measuring chamber through a chlorine dioxide gas discharge pipe above the liquid level of the electrolytic solution.
- the chlorine dioxide gas outside the device is diffused further by increasing the air flow of the blower fan, and when the amount of chlorine dioxide gas generated is relatively small, By reducing the air volume of the blower fan, the chlorine dioxide gas outside the apparatus is prevented from diffusing more than necessary, so that the chlorine dioxide gas concentration outside the apparatus can be adjusted to be within a certain range.
- the chlorine dioxide gas production apparatus of the present invention comprises an activated carbon filter for efficiently adsorbing and supplementing chlorine dioxide gas leaked from an electrolysis chamber or the like into the space in the apparatus, and dioxide dioxide leaked into the space in the apparatus.
- the air circulation fan is installed in the outer frame of the chlorine dioxide gas production apparatus of the present invention, and the activated carbon filter is installed together with the air circulation fan. For example, it is preferable that the air passing through the activated carbon filter is discharged to the outside of the apparatus through an air circulation fan.
- any numerical value used to indicate the component content or numerical range is interpreted as including the meaning of the term “about” unless otherwise specified.
- “10 times” is understood to mean “about 10 times” unless otherwise specified.
- FIG. 1 is a schematic diagram of the internal structure of a chlorine dioxide gas production device according to an embodiment of the present invention.
- the chlorine dioxide gas manufacturing apparatus includes an electrolysis chamber 1 including an electrolysis chamber 2 and a liquid level measurement chamber 3, and the electrolysis chamber 2 and the liquid level measurement chamber 3 are located in the electrolysis chamber 1. It is connected through a gas pipe 6 above the liquid level of the electrolyte solution, and is connected by an electrolyte pipe 10 below the liquid level of the electrolyte solution.
- the electrolytic chamber 2 includes an anode 18 and a cathode 19 for electrolysis
- the liquid level measuring chamber 3 includes an electrode 20 for detecting a liquid level.
- the electrolytic chamber 2 further includes a bubbling gas supply unit 5 for supplying gas from the outside of the electrolytic chamber by bubbling to the electrolytic solution in the electrolytic chamber. And connected to a bubbling gas supply device 4 disposed outside the electrolysis chamber 2. Chlorine dioxide generated in the electrolytic solution by electrolysis is taken out from the electrolytic solution into the air by bubbling, and is discharged from the blower fan 21 to the outside through the gas pipe 6.
- the electrolytic solution is supplied from the electrolytic solution supply tank 12 to the electrolytic chamber section 1 through the electrolytic solution supply pipe 7 and discharged to the electrolytic solution discharge tank 13 through the electrolytic solution discharge pipe 7 ′.
- the electrolytic solution supply pipe 7 measures the amount of the electrolytic solution supplied to the electrolytic chamber unit 1 and the liquid supply pump 14 for supplying the electrolytic solution in the electrolytic solution supply tank 12 to the electrolytic chamber unit 1.
- the integrated flow meter 16 is provided.
- the electrolytic solution discharge pipe 7 ′ measures the amount of the electrolytic solution discharged to the electrolytic solution discharge tank 13 and the drain pump 15 for discharging the electrolytic solution in the electrolytic chamber section 1 to the electrolytic solution discharge tank 13.
- An integrated flow meter 16 is provided.
- the electrolytic current value measured by the electrolysis anode 18 and cathode 19 and / or the value measured by the integrating flow meter 16 are displayed on the indicator 17 installed on the apparatus outer frame 22. Furthermore, a small amount of chlorine dioxide gas leaked to the outside of the electrolysis chamber 1 is discharged to the outside of the apparatus by the air circulation fan 8 installed in the apparatus outer frame 22. At that time, chlorine dioxide gas is adsorbed by the activated carbon filter 9.
- FIG. 2 is a schematic view of the electrolysis chamber portion 1 of the two-chamber chlorine dioxide gas production apparatus according to an embodiment of the present invention.
- the electrolysis chamber 2 and the liquid level measuring chamber 3 are included in the electrolysis chamber 1, and the bubbling gas supply unit 5 is installed below the anode 18 and the cathode 19 for electrolysis.
- the spacer 11 is configured to prevent the bubbled gas from approaching the anode 18 and the cathode 19.
- FIG. 3 is a schematic diagram of the electrolysis chamber portion 1 of the three-chamber chlorine dioxide gas production device according to an embodiment of the present invention.
- the electrolysis chamber 1, the liquid level measurement chamber 3, and the bubbling chamber 23 are included in the electrolysis chamber 1.
- the bubbling gas supply unit 5 is installed below the electrolysis anode 18 and cathode 19 and in the bubbling chamber 23.
- FIG. 4 is an electrolysis chamber portion of a chlorine dioxide gas production device of the type in which the bubbling chamber 23 is isolated from the electrolysis chamber portion 1 according to an embodiment of the present invention. 1 and a schematic view of a bubbling chamber 23.
- the bubbling chamber 23 is provided at a position isolated from the electrolysis chamber 1, but is connected to the electrolysis chamber 2 and / or the liquid level measurement chamber 3 by the gas pipe 6 and the electrolyte pipe 10.
- Other configurations are the same as in Production Example 3.
- FIGS. 5 to 7 are views showing an embodiment of the spacer 11 used in the present invention.
- the spacer 11 is fixed by gripping the anode 18 and the cathode 19 for electrolysis. Furthermore, the spacer 11 is configured so as not to obstruct the flow of the electrolytic solution from the portion where the electrolytic solution is supplied to the portion where the electrolytic solution is discharged in the electrolytic chamber (FIG. 6), and is further bubbled.
- the gas is configured to prevent the gas from approaching the cathode and anode of the electrolysis chamber (FIG. 7).
- a cylindrical electrolytic chamber (2) made of PVC containing an electrolytic solution has a Pt / Ir fired titanium oxide electrode (15 mm ⁇ 50 mm) as an anode (18) and a titanium electrode (15 mm ⁇ 15 mm) as a cathode (19). 50 mm) and a spacer (11) is provided.
- the liquid level measuring chamber (3) is provided with a liquid level detecting electrode (20).
- a supply pipe (7) for supplying the replenishing electrolyte into the electrolytic chamber (2) and an electrolyte discharge pipe (7 ') for discharging the waste liquid from the liquid level measuring chamber (3) are provided.
- a bubbling gas supply unit (5) for supplying aeration gas (air or inert gas) to the electrolyte is provided in the electrolysis chamber (2) to aerate the generated chlorine dioxide gas (dissolved gas). It is.
- the electrolyte includes potassium chloride (alkali chloride), sodium chlorite (alkali chlorite), dipotassium hydrogen phosphate (K 2 HPO 4 ) (pH adjuster), and potassium dihydrogen phosphate (KH). 2 PO 4 ) (acidic substance).
- the electrolyte solution was supplied continuously or intermittently during the electrolysis, and the waste solution was discharged as follows. That is, when the liquid level reaches the position of the shorter tip of the liquid level detection electrode (20), the energized state is established, and the electrolytic solution (waste liquid) is discharged from the electrolytic solution discharge pipe (7 '). When the liquid level falls and reaches the position of the longer tip of the liquid level detection electrode (20), the longer one of the liquid level detection electrode (20) becomes electrically disconnected, and the electrolyte is discharged together with this. The discharge of the waste liquid from the pipe (7 ') is stopped.
- electrolysis is performed at a current of 30 mA and a current density of 0.4 A / dm 2 , and chlorine dioxide gas is taken out (degassed and collected) by air at 25 ° C. and 500 mL / min.
- the electrolyte was aerated.
- the present invention provides a chlorine dioxide generator in which an electrolytic chamber and a liquid level measuring chamber are separately provided, and aeration for taking out dissolved chlorine dioxide gas generated by electrolysis from the electrolytic solution is provided in the liquid level measuring chamber.
- the electrolysis efficiency decreases due to bubbles adhering to the electrode for electrolysis and the electrode for liquid level detection, and the liquid level
- the present invention has solved these problems.
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Abstract
Description
すなわち、本発明は、二酸化塩素ガス製造装置であって、前記装置は、電解室、液面レベル測定室、および、バブリングガス供給装置を備え、前記電解室と前記液面レベル測定室には、それぞれ電解液およびガスが含まれており、ここで、電解液は、亜塩素酸塩水溶液を含み、前記電解室と前記液面レベル測定室は、各室に含まれる電解液の高さが実質的に等しくなるように、それぞれの液面の上方においてガス配管を通して相互に連結され、かつ、それぞれの液面の下方において電解液配管を通して相互に連結されており、前記電解室は、陰極と陽極とを備え、ここで、前記陰極と陽極は、スペーサーに固定されており、前記電解室は、前記電解室中の電解液に対し前記電解室の外からガスをバブリングにより供給するためのバブリングガス供給部を電解液中に備えており、ここで、前記バブリングガス供給部は配管を通して、前記電解室の外に配置された前記バブリングガス供給装置に接続されており、前記液面レベル測定室は、液面レベルを測定するための手段を有している、ことを特徴とする、二酸化塩素ガス製造装置を提供する。
なお、本明細書における「バブリングガス供給部」は、バブリングガス供給装置から供給されるガスを排出する部位でもあるため、そのような観点からは「バブリングガス排出部」と呼ぶこともある。
前記電解室は、電解液供給管を通じて、前記電解液供給タンクに接続されていることを特徴とする。
前記電解室および/または液面レベル測定室は、液面より下方において電解液排出管を通じて、前記電解液排出タンクに接続されていることを特徴とする。
(1) ClO2 - → ClO2 + e-
(2) 2Cl- → Cl2 + 2e-
(3) 2ClO2 - +Cl2 → 2ClO2 + 2Cl-
上記の(2)~(3)はpHが上がるにつれて反応効率が低下するため、電解液のpHが9.0以上の状態で電気分解を行うと、全体として二酸化塩素の発生効率が低下する。
なお、本明細書において、「液面レベルを測定する」という言葉は、「液面レベルを検出する」という意味で用いられることがある。また、本明細書において、「液面レベル検出用電極」という用語は「液面レベル測定用電極」と呼ぶことがある。
図1は、本発明の一実施形態である、二酸化塩素ガス製造装置の内部構造の模式図である。図1に示すとおり、二酸化塩素ガス製造装置は、電解室2および液面レベル測定室3を含む、電解室部1を備え、電解室2および液面レベル測定室3は、電解室部1内の電解液の液面の上方において、ガス配管6を通じて連結されており、電解液の液面の下方において、電解液配管10によって連結されている。電解室2は電気分解用の陽極18および陰極19を備え、液面レベル測定室3は液面レベル検出用の電極20を備える。電気分解用の陽極18および陰極19は、スペーサー11によって固定される。電解室2はさらに、電解室中の電解液に対し、電解室の外からガスをバブリングにより供給するためのバブリングガス供給部5を電解液中に備えており、バブリングガス供給部5は、配管を通して、電解室2の外に配置されたバブリングガス供給装置4に接続される。電気分解によって電解液中に発生した二酸化塩素は、バブリングによって電解液中から空気中に取り出され、ガス配管6を通して、送風ファン21から装置の外へ放出される。電解液は電解液供給タンク12から電解液供給管7を通して電解室部1へ供給され、電解液排出管7’を通して電解液排出タンク13へ排出される。電解液供給管7は、電解液供給タンク12中の電解液を電解室部1へと供給するための給液ポンプ14、および、電解室部1へ供給された電解液の量を測定するための積算流量計16を備える。電解液排出管7’は、電解室部1の電解液を電解液排出タンク13へと排出するための排液ポンプ15、および、電解液排出タンク13へと排出された電解液の量を測定するための積算流量計16を備える。電気分解用の陽極18および陰極19で測定した電解電流値、および/または、積算流量計16で測定した値を、装置外枠22に設置されたインジケータ17へ表示する。さらに、電解室部1の外側へ漏れだした微量の二酸化塩素ガスは、装置外枠22へ設置された空気循環ファン8によって装置外部へ排出される。その際、二酸化塩素ガスは活性炭フィルター9によって吸着される。
図2は、本発明の一実施形態である、二室式の二酸化塩素ガス製造装置の電解室部1の模式図である。二室式の二酸化塩素ガス製造装置においては、電解室2および液面レベル測定室3を電解室部1に含み、バブリングガス供給部5は電気分解用の陽極18および陰極19の下方に設置される。さらに、スペーサー11は、バブリングされたガスが陽極18および陰極19に近づくことを阻害するように構成される。
図3は、本発明の一実施形態である、三室式の二酸化塩素ガス製造装置の電解室部1の模式図である。三室式の二酸化塩素ガス製造装置においては、電解室2、液面レベル測定室3、および、バブリング室23を電解室部1に含む。バブリングガス供給部5は電気分解用の陽極18および陰極19の下方、および、バブリング室23に設置される。
図4は、本発明の一実施形態である、バブリング室23が電解室部1から隔離されるタイプの二酸化塩素ガス製造装置の電解室部1およびバブリング室23の模式図である。バブリング室23は電解室部1から隔離された位置に設けられるが、ガス配管6および電解液配管10によって、電解室2および/または液面レベル測定室3に連結する。その他の構成は、製造例3と同様である。
図5~7は、本発明において用いられるスペーサー11の一実施形態を示した図である。スペーサー11は、電気分解用の陽極18および陰極19を把持することにより固定する。さらに、スペーサー11は、電解室中において、電解液が供給される部位から電解液が排出される部位の方向へ、電解液の流れを阻害しないように構成され(図6)、さらに、バブリングされたガスが電解室の陰極および陽極に近づくことを阻害するように構成される(図7)。
図2をもとに製作した二酸化塩素ガス製造装置により、二酸化塩素発生の実験を行った。
上記の実施例において、液面レベル測定室を設けず、液面レベル検出用電極を電解室内に入れた装置で同様の実験を行ったところ、およそ1日で、バブリングの泡によるチャタリングが発生したことにより、液面レベル検出用電極に連動する液面リレーが動作しなくなり、ガス配管(発生したガスの排出管)から電解液が溢流し、発生効率を測定することができなかった。
2 電解室
3 液面レベル測定室
4 バブリングガス供給装置
5 バブリングガス供給部
6 ガス配管
7 電解液供給管
7’電解液排出管
8 空気循環ファン
9 活性炭フィルター
10 電解液配管
11 スペーサー
12 電解液供給タンク
13 電解液排出タンク
14 給液ポンプ
15 排液ポンプ
16 積算流量計
17 インジケータ
18 陽極
19 陰極
20 液面レベル検出用電極
21 二酸化塩素ガス送風ファン
22 装置外枠
23 バブリング室
Claims (18)
- 二酸化塩素ガス製造装置であって、
前記装置は、電解室、液面レベル測定室、および、バブリングガス供給装置を備え、
前記電解室と前記液面レベル測定室には、それぞれ電解液およびガスが含まれており、ここで、電解液は、亜塩素酸塩水溶液を含み、
前記電解室と前記液面レベル測定室は、各室に含まれる電解液の高さが実質的に等しくなるように、それぞれの液面の上方においてガス配管を通して相互に連結され、かつ、それぞれの液面の下方において電解液配管を通して相互に連結されており、
前記電解室は、陰極と陽極とを備え、ここで、前記陰極と陽極は、スペーサーに固定されており、
前記電解室は、前記電解室中の電解液に対し前記電解室の外からガスをバブリングにより供給するためのバブリングガス供給部を電解液中に備えており、ここで、前記バブリングガス供給部は配管を通して、前記電解室の外に配置された前記バブリングガス供給装置に接続されており、
前記液面レベル測定室は、液面レベルを測定するための手段を有している、
ことを特徴とする、
二酸化塩素ガス製造装置。 - 請求項1に記載の二酸化塩素ガス製造装置であって、
前記バブリングガス供給部は、前記スペーサーよりも下方に配置され、
前記スペーサーは、その下部において、バブリングされたガスが前記陰極および前記陽極に近づくことを阻害するように構成されていることを特徴とする、
二酸化塩素ガス製造装置。 - 請求項1または請求項2に記載の二酸化塩素ガス製造装置であって、
前記スペーサーは、前記陰極と前記陽極との間を所定の間隔に保つことを特徴とする、
二酸化塩素ガス製造装置。 - 請求項3に記載の二酸化塩素ガス製造装置であって、
前記所定の間隔が、1mm~50mmであることを特徴とする、
二酸化塩素ガス製造装置。 - 請求項1~4のいずれか1項に記載の二酸化塩素ガス製造装置であって、
前記液面レベルを測定するための手段は、相互に長さの異なる少なくとも2本以上の電極、および、当該異なる電極間の電流を測定することにより、各電極が液面に対し露出しているか否かを確認するための装置を含むことを特徴とする、
二酸化塩素ガス製造装置。 - 請求項1~5のいずれか1項に記載の二酸化塩素ガス製造装置であって、
前記製造装置は、さらに、電解液供給タンクを備え、
前記電解室は、電解液供給管を通じて、前記電解液供給タンクに接続されていることを特徴とする、
二酸化塩素ガス製造装置。 - 請求項1~6のいずれか1項に記載の二酸化塩素ガス製造装置であって、
前記製造装置は、さらに、電解液排出タンクを備え、
前記電解室および/または液面レベル測定室は、液面より下方において電解液排出管を通じて、前記電解液排出タンクに接続されていることを特徴とする、
二酸化塩素ガス製造装置。 - 請求項1~7のいずれか1項に記載の二酸化塩素ガス製造装置であって、
前記製造装置は、さらに、二酸化塩素ガス送風ファンを備え、
前記電解室および/または液面レベル測定室は、液面より上方において二酸化塩素ガス放出管を通じて、前記二酸化塩素ガス送風ファンに接続されていることを特徴とする、
二酸化塩素ガス製造装置。 - 二酸化塩素ガス製造装置であって、
前記装置は、電解室、液面レベル測定室、バブリング室、および、バブリングガス供給装置を備え、
前記電解室、前記液面レベル測定室、および、前記バブリング室には、それぞれ電解液およびガスが含まれており、ここで、電解液は、亜塩素酸塩水溶液を含み、
前記電解室、前記液面レベル測定室、および、前記バブリング室は、各室に含まれる電解液の高さが実質的に等しくなるように、それぞれの液面の上方においてガス配管を通して相互に直接的または間接的に連結され、かつ、それぞれの液面の下方において電解液配管を通して相互に直接的または間接的に連結されており、
前記電解室は、陰極と陽極とを備え、ここで、前記陰極と陽極は、スペーサーに固定されており、
前記バブリング室は、前記バブリング室中の電解液に対し前記バブリング室の外からガスをバブリングにより供給するためのバブリングガス供給部を電解液中に備えており、ここで、前記バブリングガス供給部は配管を通して、前記バブリング室の外に配置された前記バブリングガス供給装置に接続されており、
前記液面レベル測定室は、液面レベルを測定するための手段を有している、
ことを特徴とする、
二酸化塩素ガス製造装置。 - 請求項9に記載の二酸化塩素ガス製造装置であって、
前記スペーサーは、前記陰極と前記陽極との間を所定の間隔に保つことを特徴とする、
二酸化塩素ガス製造装置。 - 請求項10に記載の二酸化塩素ガス製造装置であって、
前記所定の間隔が、1mm~50mmであることを特徴とする、
二酸化塩素ガス製造装置。 - 請求項9~11のいずれか1項に記載の二酸化塩素ガス製造装置であって、
前記液面レベルを測定するための手段は、相互に長さの異なる少なくとも2本以上の電極、および、当該異なる電極間の電流を測定することにより、各電極が液面に対し露出しているか否かを確認するための装置を含むことを特徴とする、
二酸化塩素ガス製造装置。 - 請求項9~12のいずれか1項に記載の二酸化塩素ガス製造装置であって、
前記製造装置は、さらに、電解液供給タンクを備え、
前記電解室は、電解液供給管を通じて、前記電解液供給タンクに接続されていることを特徴とする、
二酸化塩素ガス製造装置。 - 請求項9~13のいずれか1項に記載の二酸化塩素ガス製造装置であって、
前記製造装置は、さらに、電解液排出タンクを備え、
前記電解室、液面レベル測定室、および、前記バブリング室の少なくともいずれか1つは、液面より下方において電解液排出管を通じて、前記電解液排出タンクに接続されていることを特徴とする、
二酸化塩素ガス製造装置。 - 請求項9~14のいずれか1項に記載の二酸化塩素ガス製造装置であって、
前記製造装置は、さらに、二酸化塩素ガス送風ファンを備え、
前記電解室、液面レベル測定室、および、前記バブリング室の少なくともいずれか1つは、液面より上方において二酸化塩素ガス放出管を通じて、前記二酸化塩素ガス送風ファンに接続されていることを特徴とする、
二酸化塩素ガス製造装置。 - 請求項9~15のいずれか1項に記載の二酸化塩素ガス製造装置であって、
さらに、前記電解室が、前記電解室中の電解液に対し前記電解室の外からガスをバブリングにより供給するためのバブリングガス供給部を電解液中に備えており、ここで、前記バブリングガス供給部は配管を通して、前記電解室の外に配置された前記バブリングガス供給装置に接続されている、
ことを特徴とする、
二酸化塩素ガス製造装置。 - 請求項16に記載の二酸化塩素ガス製造装置であって、
前記電解室に備えられた前記バブリングガス供給部は、前記スペーサーよりも下方に配置され、
前記スペーサーは、その下部において、前記電解室に備えられた前記バブリングガス供給部からバブリングされたガスが前記陰極および前記陽極に近づくことを阻害するように構成されていることを特徴とする、
二酸化塩素ガス製造装置。 - 請求項1~17のいずれか1項に記載の二酸化塩素ガス製造装置であって、
前記陰極と前記陽極との間に隔膜が存在しないことを特徴とする、
二酸化塩素ガス製造装置。
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MYPI2017000345A MY180972A (en) | 2014-09-08 | 2015-08-31 | Device for electrolytically producing chlorine dioxide gas |
KR1020177006396A KR102371473B1 (ko) | 2014-09-08 | 2015-08-31 | 전해식의 이산화염소 가스 제조 장치 |
US15/508,047 US10753004B2 (en) | 2014-09-08 | 2015-08-31 | Electrolytic chlorine dioxide gas manufacturing device |
SG11201701686WA SG11201701686WA (en) | 2014-09-08 | 2015-08-31 | Device for producing electrolytic chlorine dioxide gas |
JP2016547379A JP6567535B2 (ja) | 2014-09-08 | 2015-08-31 | 電解式二酸化塩素ガス製造装置 |
EP15839706.7A EP3192895B1 (en) | 2014-09-08 | 2015-08-31 | Device for electrolytically producing chlorine dioxide gas |
US16/930,949 US11414767B2 (en) | 2014-09-08 | 2020-07-16 | Electrolytic chlorine dioxide gas manufacturing device |
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US16/930,949 Division US11414767B2 (en) | 2014-09-08 | 2020-07-16 | Electrolytic chlorine dioxide gas manufacturing device |
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JP (1) | JP6567535B2 (ja) |
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CN (2) | CN205133741U (ja) |
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MY (1) | MY180972A (ja) |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2018043711A1 (ja) * | 2016-09-05 | 2018-03-08 | 株式会社大阪ソーダ | 二酸化塩素発生装置及び二酸化塩素発生方法 |
JP2021066934A (ja) * | 2019-10-24 | 2021-04-30 | 株式会社フジコム | 二酸化塩素ガス排出装置 |
Families Citing this family (7)
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CN205133741U (zh) * | 2014-09-08 | 2016-04-06 | 大幸药品株式会社 | 电解式二氧化氯气体制造装置 |
TWI611050B (zh) * | 2016-04-27 | 2018-01-11 | Liu De Hui | 穩定生產高純度食品級二氧化氯之輔助裝置與系統 |
CN106219491B (zh) * | 2016-07-27 | 2018-02-27 | 广西博世科环保科技股份有限公司 | 基于热能及副产品回收利用的综合法二氧化氯制备工艺 |
KR101996479B1 (ko) * | 2017-02-09 | 2019-07-03 | 정진호 | 전해질의 전기분해장치 |
EP3868720A1 (en) | 2017-04-01 | 2021-08-25 | Intex Marketing Ltd. | Water treatment system |
TWI625523B (zh) * | 2017-04-13 | 2018-06-01 | 矽品精密工業股份有限公司 | 偵測系統 |
CN114588843B (zh) * | 2022-04-13 | 2024-05-03 | 北京天绿恒力科技有限公司 | 饮用水消毒用二氧化氯制备装置 |
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- 2015-08-28 CN CN201520664998.5U patent/CN205133741U/zh not_active Withdrawn - After Issue
- 2015-08-28 CN CN201510544214.XA patent/CN105401163B/zh active Active
- 2015-08-28 TW TW104128285A patent/TWI684678B/zh active
- 2015-08-31 MY MYPI2017000345A patent/MY180972A/en unknown
- 2015-08-31 KR KR1020177006396A patent/KR102371473B1/ko active IP Right Grant
- 2015-08-31 SG SG11201701686WA patent/SG11201701686WA/en unknown
- 2015-08-31 JP JP2016547379A patent/JP6567535B2/ja active Active
- 2015-08-31 EP EP15839706.7A patent/EP3192895B1/en active Active
- 2015-08-31 WO PCT/JP2015/074567 patent/WO2016039190A1/ja active Application Filing
- 2015-08-31 US US15/508,047 patent/US10753004B2/en active Active
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2016
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2020
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Also Published As
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EP3192895A1 (en) | 2017-07-19 |
TW201610236A (zh) | 2016-03-16 |
MY180972A (en) | 2020-12-14 |
US20200354841A1 (en) | 2020-11-12 |
US20170253980A1 (en) | 2017-09-07 |
SG11201701686WA (en) | 2017-04-27 |
CN105401163A (zh) | 2016-03-16 |
JP6567535B2 (ja) | 2019-08-28 |
EP3192895A4 (en) | 2018-05-02 |
EP3192895B1 (en) | 2019-03-13 |
CN105401163B (zh) | 2019-08-20 |
US11414767B2 (en) | 2022-08-16 |
CN205133741U (zh) | 2016-04-06 |
US10753004B2 (en) | 2020-08-25 |
KR20170049521A (ko) | 2017-05-10 |
TWI684678B (zh) | 2020-02-11 |
KR102371473B1 (ko) | 2022-03-07 |
HK1217739A1 (zh) | 2017-01-20 |
JPWO2016039190A1 (ja) | 2017-07-13 |
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