CN112672770A - Chlorine dioxide generating device - Google Patents
Chlorine dioxide generating device Download PDFInfo
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- CN112672770A CN112672770A CN201980059166.1A CN201980059166A CN112672770A CN 112672770 A CN112672770 A CN 112672770A CN 201980059166 A CN201980059166 A CN 201980059166A CN 112672770 A CN112672770 A CN 112672770A
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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)
- C01B11/023—Preparation from chlorites or chlorates
- C01B11/024—Preparation from chlorites or chlorates from chlorites
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/01—Deodorant compositions
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/015—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone
- A61L9/04—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone using substances evaporated in the air without heating
- A61L9/12—Apparatus, e.g. holders, therefor
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/14—Disinfection, sterilisation or deodorisation of air using sprayed or atomised substances including air-liquid contact processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
- B01J23/42—Platinum
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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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
- A61L2209/10—Apparatus features
- A61L2209/13—Dispensing or storing means for active compounds
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
- A61L2209/20—Method-related aspects
- A61L2209/21—Use of chemical compounds for treating air or the like
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- Chemical & Material Sciences (AREA)
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Abstract
The problem of the present invention is to provide an apparatus that can stably generate chlorine dioxide for a long period of time with a simpler configuration than conventional chlorine dioxide generation apparatuses. The present invention provides a novel chlorine dioxide generator utilizing a reaction between an aqueous chlorite solution and a catalyst.
Description
Technical Field
The present invention relates to a novel chlorine dioxide generating device.
Background
Chlorine dioxide gas is known to be a gas safe for living animals at a low concentration (for example, 0.1ppm or less), and has a deactivating action, a deodorizing action, and the like against microorganisms such as bacteria, fungi, viruses, and the like even at such a low concentration.
Methods for generating chlorine dioxide are known, for example: a method for stably generating chlorine dioxide using a composition containing dissolved chlorine dioxide gas, a chlorite aqueous solution, and a pH adjuster (patent document 1); a method for producing chlorine dioxide by electrolyzing an electrolytic solution containing chlorite (patent document 2).
In recent years, a device for generating chlorine dioxide by irradiating a solid chlorite with visible light has also been proposed (patent document 3).
[ Prior art documents ]
[ patent document ]
[ patent document 1] WO/2008/111357
[ patent document 2] WO/2009/154143
[ patent document 3] WO/2015/098732.
Disclosure of Invention
[ problems to be solved by the invention ]
The invention aims to provide a device which can generate chlorine dioxide stably for a long time by using a simpler structure compared with a conventional chlorine dioxide generating device.
[ means for solving problems ]
The present inventors have conducted intensive studies and, as a result, succeeded in developing a novel chlorine dioxide generator utilizing a mechanism for generating chlorine dioxide by a reaction between an aqueous chlorite solution and a catalyst, and thus completed the present invention.
That is, one embodiment of the present invention is a chlorine dioxide generating apparatus including a bubbling mechanism, wherein,
the chlorine dioxide generator comprises a reaction vessel and an air introducing device,
the reaction vessel contains an aqueous chlorite solution and a catalyst,
the reaction vessel and the air introducing device are connected to each other through a pipe,
the chlorine dioxide generating device is composed of the following components: when the air introducing means is operated, air is bubbled into the aqueous chlorite solution in the reaction vessel, and the bubbled air comes into contact with the catalyst;
the concentration of chlorine dioxide contained in the air discharged from the chlorine dioxide generator at a time point after the chlorine dioxide generator is continuously operated for 2 weeks can be maintained at least 50% or more of the concentration of chlorine dioxide contained in the air discharged from the chlorine dioxide generator at a time point after the chlorine dioxide generator is continuously operated for 1 week.
In one embodiment of the present invention, the reaction vessel is configured as follows: at least partially open, and the air containing chlorine dioxide generated in the reaction vessel is discharged to the outside of the chlorine dioxide generator.
In one embodiment of the present invention, the chlorine dioxide generator does not include an electrolysis means.
In one embodiment of the present invention, the aqueous chlorite salt solution is an aqueous alkali metal chlorite salt solution or an aqueous alkaline earth metal chlorite salt solution.
In one embodiment of the present invention, the alkali metal chlorite aqueous solution is a sodium chlorite aqueous solution, a potassium chlorite aqueous solution or a lithium chlorite aqueous solution, and the alkali earth metal chlorite aqueous solution is a calcium chlorite aqueous solution, a magnesium chlorite aqueous solution or a barium chlorite aqueous solution.
In one embodiment of the present invention, the concentration of the chlorite aqueous solution is 0.01 to 45% by weight.
In one embodiment of the present invention, the catalyst is a solid catalyst.
In one embodiment of the present invention, the catalyst is a metal-based catalyst, a mineral-based catalyst, a carbon-based catalyst, or a combination thereof.
In one embodiment of the present invention, the metal catalyst is a catalyst containing platinum (Pt), ruthenium (Rh), rhodium (Rh), palladium (Pd), iridium (Ir), osmium (Os), iron (Fe), copper (Cu), manganese (Mn), cobalt (Co), nickel (Ni), molybdenum (Mo), or a compound of these metals, the mineral catalyst is a catalyst containing silicon (Si) or a silicon-containing compound, and the carbon-based catalyst is a catalyst containing activated carbon.
In one embodiment of the present invention, the catalyst is supported on a carrier.
In one embodiment of the present invention, the carrier is a carrier containing a material selected from the group consisting of titanium, valve metal, stainless steel, nickel, ceramic, carbon, and porous material.
In one embodiment of the present invention, the air introducing means is a means for introducing air into the flow path of the chlorine dioxide generator from a start point of the flow path, or a means for sucking air in the flow path from an end point of the flow path of the chlorine dioxide generator.
In one embodiment of the present invention, the air introducing device is an electric air pump.
The scope of the present invention also includes inventions in which one or more of the above-mentioned configurations of the present invention are arbitrarily combined.
[ Effect of the invention ]
The present invention has at least the following 1 or more advantages over conventional chlorine dioxide generation methods and generation apparatuses.
(1) Safety and durability improvement
The present invention utilizes the generation of chlorine dioxide resulting from the reaction of chlorite with a catalyst. This method is safe to use (for example, when chlorine dioxide is generated by electrolysis, chlorine gas or hydrogen gas is generated if the electrolyte is deteriorated) compared with a "method of generating chlorine dioxide by adding an acidic substance to chlorite" or a "method using electrolysis" because there is little risk of generating a large amount of chlorine dioxide by a rapid reaction and it is confirmed that harmful gases other than chlorine dioxide gas are not generated. Furthermore, the device of the present invention has only the air introduction means as a power source, so that the risk of device failure is low and the device can be easily repaired even in the event of device failure.
(2) Maintenance-free (maintence-free)
The invention has simple structure, but can still stably generate chlorine dioxide without maintenance for at least more than 2 weeks (more preferably more than 3 weeks, and more preferably more than 1 month). Further, when the lifetime of the chlorite aqueous solution expires, the apparatus can continue to operate as long as the chlorite aqueous solution is replaced.
(3) Miniaturization and cost reduction
The present invention has a very simple structure as compared with a chlorine dioxide generator using electrolysis, and can therefore be made smaller and lower in cost.
Drawings
FIG. 1 shows a design example of the present invention.
Fig. 2 shows the results (chlorine dioxide generation amount) of experiment 1.
Fig. 3 shows the results of experiment 2 (qualitative analysis of the generated gas).
Fig. 4 shows the results of experiment 3.
Detailed Description
An embodiment of the present invention will be described with reference to a design example shown in fig. 1.
Design example
A chlorine dioxide generator according to an embodiment of the present invention shown in fig. 1 includes: an air introduction device 1 and a reaction vessel 3, wherein the reaction vessel 3 contains a chlorite aqueous solution 4 and a catalyst 5. The air introduction device 1 and the reaction vessel 3 are connected by a conduit 2.
In the reaction vessel 3, chlorine dioxide is generated by the reaction of the chlorite aqueous solution 4 with the catalyst 5. If the air introducing device 1 is operated, air supplied through the conduit 2 is bubbled into the reaction vessel 3, and the aqueous chlorite solution 4 and the catalyst 5 are stirred. When the chlorite aqueous solution 4 and the catalyst 5 are stirred by bubbling, chlorine dioxide generated on the surface of the catalyst 5 is released from the catalyst surface, and chlorine dioxide is generated again on the surface of the catalyst 5. Chlorine dioxide freed by bubbling is discharged out of the apparatus together with air through a conduit 2' provided in the upper part of the reaction vessel 3.
That is, the chlorine dioxide generator of the present invention shown in fig. 1 is provided with a bubbling mechanism centered on the air introduction device 1, and thereby the reaction between the chlorite aqueous solution 4 and the catalyst 5 is promoted and the generated chlorine dioxide can be released to the outside of the generator.
In the above description, the present invention is explained with reference to the design examples, but the present invention can be embodied in various embodiments and is not to be construed as being limited to the design examples described herein. For example, in one embodiment of the present invention, the size and shape of the device can be optimized by variously changing the arrangement of the vessel and the duct constituting the device.
Examples of the chlorite used in the present invention include alkali metal chlorite and alkaline earth metal chlorite. Alkali metal chlorous acid salts include, for example: sodium chlorite, potassium chlorite, lithium chlorite, and alkaline earth metal salts of chlorous acid include: calcium chlorite, magnesium chlorite, barium chlorite. Among them, sodium chlorite and potassium chlorite are preferable, and sodium chlorite is most preferable, from the viewpoint of easy availability. These chloroxonium hydroxides may be used alone in 1 kind, and may be used in combination in 2 or more kinds. The proportion of alkali chlorite in the aqueous chlorite solution is more preferably 0.01 to 45% by weight. If the amount of the chlorite is less than 0.01 wt%, the chlorite necessary for generating chlorine dioxide may be exhausted in a short time, and if the amount of the chlorite exceeds 45 wt%, the chlorite may be saturated and easily precipitated. In view of safety and stability, generation efficiency of chlorine dioxide, etc., a more preferable range is 0.1 to 25% by weight, a more preferable range is 1 to 20% by weight, and a still more preferable range is 2 to 15%
The catalyst used in the apparatus of the present invention is not limited as long as it reacts with the aqueous chlorite solution to generate chlorine dioxide, but a solid catalyst (or heterogeneous catalyst) is preferred because it is separated from the aqueous chlorite solution when the reaction is stopped. Examples of the solid catalyst that can be used in the apparatus of the present invention include: metal catalysts (e.g., platinum (Pt), ruthenium (Rh), rhodium (Rh), palladium (Pd), iridium (Ir), osmium (Os), iron (Fe), copper (Cu), manganese (Mn), cobalt (Co), nickel (Ni), molybdenum (Mo), or compounds thereof), mineral catalysts (e.g., silicon (Si) or silicon-containing compounds), and carbon catalysts (e.g., catalysts containing activated carbon).
The catalyst used in the apparatus of the present invention may be used alone, but in order to improve the reaction efficiency between the aqueous chlorite solution and the catalyst, a catalyst supported on a carrier may be used. The catalyst-supporting carrier is not limited as long as it contributes to the improvement of the reaction efficiency between the chlorite aqueous solution and the catalyst, but is preferably, for example: comprising a carrier of a material selected from the group consisting of titanium, valve metal, stainless steel, nickel, ceramic, carbon, and porous material.
The air introducing device used in the apparatus of the present invention is not limited as long as it can move the air or the chlorite aqueous solution in one direction in the flow path of the apparatus, and may be, for example, an electric air pump. The electric power supply to the electric air pump may be performed by a power supply device via a cable, or may be performed by a battery.
The air introducing device usable in the apparatus of the present invention may be provided at various positions as long as the air or the chlorite aqueous solution in the flow path of the apparatus can be moved in one direction. For example: the air introducing device can be arranged at the starting point of the flow path to introduce air into the flow path; the air introducing device may be provided in the middle of the flow path to move the air in the flow path in one direction; the air introducing means may be provided at the end of the flow path, and the air or the chlorite aqueous solution in the flow path of the apparatus may be moved in one direction by sucking the air in the flow path.
In the apparatus of the present invention, the gas introduced into the flow path in the apparatus by the air introduction means is typically air, but an inactive gas such as nitrogen or argon may be used.
The chlorine dioxide generating device of the invention can further comprise an air supply fan for releasing the chlorine dioxide gas generated in the device to the outside of the device. By providing the blower fan, the chlorine dioxide gas generated in the apparatus can be efficiently discharged to the outside of the apparatus, and the amount of the chlorine dioxide gas discharged to the outside of the apparatus can be adjusted by adjusting the air volume of the fan. For example: when the generation amount of the chlorine dioxide gas is more, the chlorine dioxide gas outside the device is diffused farther by enhancing the air volume of the air supply fan; when the amount of chlorine dioxide gas generated is small, the amount of air blown by the blower fan can be reduced to prevent unnecessary diffusion of chlorine dioxide gas outside the apparatus, thereby adjusting the concentration of chlorine dioxide gas outside the apparatus within a predetermined range.
The terms used in the present specification are used to describe specific embodiments, and are not intended to limit the invention.
The term "comprising" used in the present specification is intended to indicate the presence of the described items (members, steps, elements, numbers, etc.) and not to exclude the presence of other items (members, steps, elements, numbers, etc.) than the described items, except when it is obvious that the terms are understood differently in the context of the text.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terms used herein should not be construed to have meanings consistent with meanings in this specification and the related art, but should not be construed to have idealized or overly formal meanings unless expressly so defined herein.
The embodiments of the present invention will be described with reference to the drawings, but in the case of the drawings, they are exaggerated for clarity.
In the present specification, for example, when presented in "1 to 10 w/w%", one skilled in the art can appreciate that the presentation specifically refers to 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10 w/w%, respectively.
In the present specification, any numerical value used for indicating the content of a component or a numerical range can be interpreted to include the meaning of the term "about" unless otherwise specified. For example, "10 times" means "about 10 times" unless otherwise specified.
All publications cited in this specification are herein incorporated by reference as if fully set forth, and the corresponding disclosure in any prior art publication is specifically and individually indicated to be incorporated by reference as if fully set forth herein, without departing from the spirit and scope of the invention.
[ examples ]
In order to confirm the effect of the present invention, the following experiment was performed.
[ experiment 1. reaction of catalyst with aqueous solution of chlorite ]
Chlorine dioxide generation experiments were performed using the apparatus shown in fig. 1. The catalyst was a catalyst in which platinum master batch was supported on titanium (carrier), and 1L of a 1% aqueous solution of sodium chlorite was used as an aqueous solution of chlorite. Air was bubbled into the reaction vessel 3 containing the chlorite aqueous solution 4 and the catalyst 5 at a flow rate of about 1L/min using the air introduction apparatus 1. On the other hand, as a control group, the apparatus was operated under the same conditions as described above except that no catalyst was used.
A comparison of the amount of chlorine dioxide produced in the two conditions is shown in figure 2. As shown in fig. 2, chlorine dioxide is generated in the condition where the catalyst is used, while chlorine dioxide is not generated in the condition where the catalyst is not used. That is, it was confirmed that a catalyst was necessary to generate chlorine dioxide in the apparatus of the present invention.
[ experiment 2. qualitative analysis of gas produced ]
The gas generated by the method of experiment 1 was collected and the composition was qualitatively analyzed by ion chromatography. The results are shown in FIG. 3. As shown in fig. 3, the gas component generated by the reaction of chlorite and catalyst is actually only chlorine dioxide.
[ experiment 3. examination of long-term operability ]
The apparatus used in experiment 1 (the apparatus shown in fig. 1) was used to conduct a long-term apparatus operation test. The test results are shown in FIG. 4. As shown in fig. 4, the apparatus of the present invention can stably generate chlorine dioxide for about 1 month.
As described above, only the structure is simple as compared with the conventional chlorine dioxide generator, but chlorine dioxide can be stably generated for a long time.
Claims (13)
1. A chlorine dioxide generator comprising a bubbling mechanism, wherein,
the chlorine dioxide generator comprises a reaction vessel and an air introducing device,
the reaction vessel contains an aqueous chlorite solution and a catalyst,
the reaction vessel and the air introducing device are connected to each other through a pipe,
the chlorine dioxide generating device is composed of the following components: when the air introducing means is operated, air is bubbled into the aqueous chlorite solution in the reaction vessel, and the bubbled air comes into contact with the catalyst;
the concentration of chlorine dioxide contained in the air discharged from the chlorine dioxide generator at a time point after the chlorine dioxide generator is continuously operated for 2 weeks can be maintained at least 50% or more of the concentration of chlorine dioxide contained in the air discharged from the chlorine dioxide generator at a time point after the chlorine dioxide generator is continuously operated for 1 week.
2. The chlorine dioxide-generating apparatus according to claim 1,
the reaction vessel is constituted in the following manner: at least partially open, and the air containing chlorine dioxide generated in the reaction vessel is discharged to the outside of the chlorine dioxide generator.
3. The chlorine dioxide-generating apparatus according to claim 1,
the chlorine dioxide generating device does not comprise an electrolysis mechanism.
4. The chlorine dioxide-generating apparatus according to claim 1,
the aqueous chlorite solution is an aqueous alkali metal chlorite solution or an aqueous alkaline earth metal chlorite solution.
5. The chlorine dioxide-generating apparatus according to claim 4,
the alkali metal chlorite salt water solution is a sodium chlorite water solution, a potassium chlorite water solution or a lithium chlorite water solution,
the chlorous acid alkaline earth metal salt water solution is calcium chlorite water solution, magnesium chlorite water solution or barium chlorite water solution.
6. The chlorine dioxide-generating apparatus according to claim 1,
the concentration of the aqueous chlorite solution is 0.01 to 45 wt%.
7. The chlorine dioxide-generating apparatus according to claim 1,
the catalyst is a solid catalyst.
8. The chlorine dioxide-generating apparatus according to claim 7,
the catalyst is a metal-based catalyst, a mineral-based catalyst, a carbon-based catalyst, or a combination thereof.
9. The chlorine dioxide-generating apparatus according to claim 8,
the metal catalyst is a catalyst containing platinum (Pt), ruthenium (Rh), rhodium (Rh), palladium (Pd), iridium (Ir), osmium (Os), iron (Fe), copper (Cu), manganese (Mn), cobalt (Co), nickel (Ni), molybdenum (Mo), or a compound of these metals,
the mineral-based catalyst is a catalyst containing silicon (Si) or a silicon-containing compound,
the carbon-based catalyst is a catalyst containing activated carbon.
10. The chlorine dioxide-generating apparatus according to claim 1,
the catalyst is supported on a carrier.
11. Chlorine dioxide generating apparatus according to claim 10,
the carrier is a carrier comprising a material selected from the group consisting of titanium, valve metal, stainless steel, nickel, ceramic, carbon, and porous material.
12. The chlorine dioxide-generating apparatus according to claim 1,
the air introducing means is a means for introducing air into the flow path from the start point of the flow path of the chlorine dioxide generator, or a means for sucking air in the flow path from the end point of the flow path of the chlorine dioxide generator.
13. The chlorine dioxide-generating apparatus according to claim 12,
the air introducing means is an electric air pump.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018202564 | 2018-10-29 | ||
| JP2018-202564 | 2018-10-29 | ||
| PCT/JP2019/041276 WO2020090538A1 (en) | 2018-10-29 | 2019-10-21 | Chlorine dioxide generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112672770A true CN112672770A (en) | 2021-04-16 |
Family
ID=70464139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201980059166.1A Pending CN112672770A (en) | 2018-10-29 | 2019-10-21 | Chlorine dioxide generating device |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP7401103B2 (en) |
| KR (1) | KR20210082433A (en) |
| CN (1) | CN112672770A (en) |
| TW (1) | TWI813799B (en) |
| WO (1) | WO2020090538A1 (en) |
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| JP4125103B2 (en) * | 2002-12-10 | 2008-07-30 | 第一制電機株式会社 | Chlorine dioxide gas generator |
| KR101471222B1 (en) | 2007-03-15 | 2014-12-09 | 다이꼬 야꾸힝 가부시끼가이샤 | Pure chlorine dioxide solution, and gel-like composition and foamable composition each comprising the same |
| SG11201604863QA (en) | 2013-12-27 | 2016-07-28 | Taiko Pharmaceutical Co Ltd | Unit for chlorine dioxide generation and chlorine dioxide generation device |
| JP6891894B2 (en) * | 2016-09-05 | 2021-06-18 | 株式会社大阪ソーダ | Chlorine dioxide generator and chlorine dioxide generation method |
-
2019
- 2019-10-21 KR KR1020217007121A patent/KR20210082433A/en not_active Application Discontinuation
- 2019-10-21 CN CN201980059166.1A patent/CN112672770A/en active Pending
- 2019-10-21 WO PCT/JP2019/041276 patent/WO2020090538A1/en active Application Filing
- 2019-10-21 JP JP2020553796A patent/JP7401103B2/en active Active
- 2019-10-22 TW TW108138044A patent/TWI813799B/en active
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| US5008096A (en) * | 1990-04-03 | 1991-04-16 | Bio-Cide International, Inc. | Catalyst enhanced generation of chlorine dioxide |
| US20010005499A1 (en) * | 1994-03-07 | 2001-06-28 | Daniel Ostgard | Catalyst and method for the synthesis of chlorine dioxide, and method of making catalyst for the synthesis of chlorine dioxide |
| JPH10192377A (en) * | 1997-01-14 | 1998-07-28 | Chisso Corp | Method for environmental sterilization by gaseous chlorine dioxide |
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Also Published As
| Publication number | Publication date |
|---|---|
| TWI813799B (en) | 2023-09-01 |
| WO2020090538A1 (en) | 2020-05-07 |
| KR20210082433A (en) | 2021-07-05 |
| TW202034966A (en) | 2020-10-01 |
| JP7401103B2 (en) | 2023-12-19 |
| JPWO2020090538A1 (en) | 2021-09-24 |
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