CN112512963A - Method for generating and eliminating chlorine dioxide gas and kit for generating and eliminating chlorine dioxide gas - Google Patents
Method for generating and eliminating chlorine dioxide gas and kit for generating and eliminating chlorine dioxide gas Download PDFInfo
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- CN112512963A CN112512963A CN201980050345.9A CN201980050345A CN112512963A CN 112512963 A CN112512963 A CN 112512963A CN 201980050345 A CN201980050345 A CN 201980050345A CN 112512963 A CN112512963 A CN 112512963A
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- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 title claims abstract description 425
- 239000004155 Chlorine dioxide Substances 0.000 title claims abstract description 194
- 235000019398 chlorine dioxide Nutrition 0.000 title claims abstract description 194
- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 317
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 42
- QBWCMBCROVPCKQ-UHFFFAOYSA-N chlorous acid Chemical compound OCl=O QBWCMBCROVPCKQ-UHFFFAOYSA-N 0.000 claims abstract description 34
- 230000008030 elimination Effects 0.000 claims abstract description 22
- 238000003379 elimination reaction Methods 0.000 claims abstract description 22
- 229910001919 chlorite Inorganic materials 0.000 claims abstract description 20
- 229910052619 chlorite group Inorganic materials 0.000 claims abstract description 20
- 239000007789 gas Substances 0.000 claims description 262
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 claims description 44
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 25
- 150000003839 salts Chemical class 0.000 claims description 23
- 229960005070 ascorbic acid Drugs 0.000 claims description 14
- 235000010323 ascorbic acid Nutrition 0.000 claims description 13
- 239000011668 ascorbic acid Substances 0.000 claims description 13
- 235000010350 erythorbic acid Nutrition 0.000 claims description 12
- CIWBSHSKHKDKBQ-DUZGATOHSA-N D-araboascorbic acid Natural products OC[C@@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-DUZGATOHSA-N 0.000 claims description 10
- 239000004318 erythorbic acid Substances 0.000 claims description 10
- 229940026239 isoascorbic acid Drugs 0.000 claims description 10
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 36
- 239000000126 substance Substances 0.000 description 24
- 239000007864 aqueous solution Substances 0.000 description 22
- 239000000243 solution Substances 0.000 description 22
- 239000007921 spray Substances 0.000 description 22
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 20
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 14
- 239000002612 dispersion medium Substances 0.000 description 14
- 239000007788 liquid Substances 0.000 description 14
- 241000208125 Nicotiana Species 0.000 description 12
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 12
- 229960002163 hydrogen peroxide Drugs 0.000 description 9
- -1 pollen Substances 0.000 description 9
- UKLNMMHNWFDKNT-UHFFFAOYSA-M sodium chlorite Chemical compound [Na+].[O-]Cl=O UKLNMMHNWFDKNT-UHFFFAOYSA-M 0.000 description 8
- 229960002218 sodium chlorite Drugs 0.000 description 8
- 206010020751 Hypersensitivity Diseases 0.000 description 7
- 208000026935 allergic disease Diseases 0.000 description 7
- 230000007815 allergy Effects 0.000 description 7
- 235000015165 citric acid Nutrition 0.000 description 7
- 230000001939 inductive effect Effects 0.000 description 7
- 239000002904 solvent Substances 0.000 description 7
- 238000005507 spraying Methods 0.000 description 7
- 241000233866 Fungi Species 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 241000700605 Viruses Species 0.000 description 6
- 244000052616 bacterial pathogen Species 0.000 description 6
- 238000004332 deodorization Methods 0.000 description 6
- 239000006185 dispersion Substances 0.000 description 6
- 239000000428 dust Substances 0.000 description 6
- 230000007613 environmental effect Effects 0.000 description 6
- 238000000746 purification Methods 0.000 description 6
- 239000000779 smoke Substances 0.000 description 6
- 238000005536 corrosion prevention Methods 0.000 description 5
- 235000013305 food Nutrition 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 229920000139 polyethylene terephthalate Polymers 0.000 description 5
- 239000005020 polyethylene terephthalate Substances 0.000 description 5
- 230000002265 prevention Effects 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 239000003125 aqueous solvent Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000002211 L-ascorbic acid Substances 0.000 description 3
- 235000000069 L-ascorbic acid Nutrition 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 3
- 239000004320 sodium erythorbate Substances 0.000 description 3
- 235000010352 sodium erythorbate Nutrition 0.000 description 3
- RBWSWDPRDBEWCR-RKJRWTFHSA-N sodium;(2r)-2-[(2r)-3,4-dihydroxy-5-oxo-2h-furan-2-yl]-2-hydroxyethanolate Chemical compound [Na+].[O-]C[C@@H](O)[C@H]1OC(=O)C(O)=C1O RBWSWDPRDBEWCR-RKJRWTFHSA-N 0.000 description 3
- 239000003440 toxic substance Substances 0.000 description 3
- 208000001840 Dandruff Diseases 0.000 description 2
- WTDHULULXKLSOZ-UHFFFAOYSA-N Hydroxylamine hydrochloride Chemical compound Cl.ON WTDHULULXKLSOZ-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 229940072107 ascorbate Drugs 0.000 description 2
- 229940026231 erythorbate Drugs 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- 239000002609 medium Substances 0.000 description 2
- 150000007522 mineralic acids Chemical class 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- 231100000167 toxic agent Toxicity 0.000 description 2
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 description 1
- HBAQYPYDRFILMT-UHFFFAOYSA-N 8-[3-(1-cyclopropylpyrazol-4-yl)-1H-pyrazolo[4,3-d]pyrimidin-5-yl]-3-methyl-3,8-diazabicyclo[3.2.1]octan-2-one Chemical class C1(CC1)N1N=CC(=C1)C1=NNC2=C1N=C(N=C2)N1C2C(N(CC1CC2)C)=O HBAQYPYDRFILMT-UHFFFAOYSA-N 0.000 description 1
- CIWBSHSKHKDKBQ-MVHIGOERSA-N D-ascorbic acid Chemical compound OC[C@@H](O)[C@@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-MVHIGOERSA-N 0.000 description 1
- ZZZCUOFIHGPKAK-UHFFFAOYSA-N D-erythro-ascorbic acid Natural products OCC1OC(=O)C(O)=C1O ZZZCUOFIHGPKAK-UHFFFAOYSA-N 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000004260 Potassium ascorbate Substances 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 229930003268 Vitamin C Natural products 0.000 description 1
- WOHVONCNVLIHKY-UHFFFAOYSA-L [Ba+2].[O-]Cl=O.[O-]Cl=O Chemical compound [Ba+2].[O-]Cl=O.[O-]Cl=O WOHVONCNVLIHKY-UHFFFAOYSA-L 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- QXIKMJLSPJFYOI-UHFFFAOYSA-L calcium;dichlorite Chemical compound [Ca+2].[O-]Cl=O.[O-]Cl=O QXIKMJLSPJFYOI-UHFFFAOYSA-L 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 235000013373 food additive Nutrition 0.000 description 1
- 239000002778 food additive Substances 0.000 description 1
- 229940093915 gynecological organic acid Drugs 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 231100000086 high toxicity Toxicity 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- KAGBQTDQNWOCND-UHFFFAOYSA-M lithium;chlorite Chemical compound [Li+].[O-]Cl=O KAGBQTDQNWOCND-UHFFFAOYSA-M 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- NWAPVVCSZCCZCU-UHFFFAOYSA-L magnesium;dichlorite Chemical compound [Mg+2].[O-]Cl=O.[O-]Cl=O NWAPVVCSZCCZCU-UHFFFAOYSA-L 0.000 description 1
- 239000001630 malic acid Substances 0.000 description 1
- 235000011090 malic acid Nutrition 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000003002 pH adjusting agent Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- CONVKSGEGAVTMB-RKJRWTFHSA-M potassium (2R)-2-[(1R)-1,2-dihydroxyethyl]-4-hydroxy-5-oxo-2H-furan-3-olate Chemical compound [K+].OC[C@@H](O)[C@H]1OC(=O)C(O)=C1[O-] CONVKSGEGAVTMB-RKJRWTFHSA-M 0.000 description 1
- 235000019275 potassium ascorbate Nutrition 0.000 description 1
- 229940017794 potassium ascorbate Drugs 0.000 description 1
- CONVKSGEGAVTMB-RXSVEWSESA-M potassium-L-ascorbate Chemical compound [K+].OC[C@H](O)[C@H]1OC(=O)C(O)=C1[O-] CONVKSGEGAVTMB-RXSVEWSESA-M 0.000 description 1
- VISKNDGJUCDNMS-UHFFFAOYSA-M potassium;chlorite Chemical compound [K+].[O-]Cl=O VISKNDGJUCDNMS-UHFFFAOYSA-M 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 235000010378 sodium ascorbate Nutrition 0.000 description 1
- PPASLZSBLFJQEF-RKJRWTFHSA-M sodium ascorbate Substances [Na+].OC[C@@H](O)[C@H]1OC(=O)C(O)=C1[O-] PPASLZSBLFJQEF-RKJRWTFHSA-M 0.000 description 1
- 229960005055 sodium ascorbate Drugs 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 1
- 235000019345 sodium thiosulphate Nutrition 0.000 description 1
- PPASLZSBLFJQEF-RXSVEWSESA-M sodium-L-ascorbate Chemical compound [Na+].OC[C@H](O)[C@H]1OC(=O)C(O)=C1[O-] PPASLZSBLFJQEF-RXSVEWSESA-M 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- BSGGVIDZMMSWKM-UHFFFAOYSA-L strontium dichlorite Chemical compound [Sr+2].[O-]Cl=O.[O-]Cl=O BSGGVIDZMMSWKM-UHFFFAOYSA-L 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 235000019154 vitamin C Nutrition 0.000 description 1
- 239000011718 vitamin C Substances 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
-
- 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
-
- 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
-
- 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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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
The method for generating and destroying chlorine dioxide gas comprises the following steps: a gas generation step (S10) in which chlorine dioxide gas is generated by bringing agent A containing chlorite into contact with agent B containing a gas generating agent; and a gas elimination step (S20) for eliminating chlorine dioxide gas by bringing agent C containing a chlorine dioxide reducing agent into contact with chlorine dioxide. Further, a set for chlorine dioxide gas generation and elimination includes: the chlorine dioxide gas generating agent comprises an agent A containing a chlorite salt, an agent B containing a gas generating agent, and an agent C containing a chlorine dioxide reducing agent, wherein the agent A and the agent B are brought into contact to generate a chlorine dioxide gas, and the agent C is brought into contact with the chlorine dioxide gas to destroy the chlorine dioxide gas. The present invention provides a method for eliminating chlorine dioxide gas generation and a set for chlorine dioxide gas generation and elimination, which can eliminate the generated chlorine dioxide gas after use to reduce the pungent odor caused by the chlorine dioxide gas after use.
Description
Technical Field
The present disclosure relates to a treatment of allergy inducing substances such as pollen, dust, dander, fungi, etc.; treatment of harmful substances such as pathogenic bacteria, viruses, harmful chemicals (e.g., tobacco (tabaco) smoke, formaldehyde), etc.; a method and kit for generating and eliminating chlorine dioxide gas are widely used for environmental purification, deodorization, mold prevention, corrosion prevention of foods, and the like.
Background
Chlorine dioxide (ClO)2) Has strong oxidizing power, and is widely used for treating allergy-inducing substances such as pollen, dust, dandruff, fungi, etc.; treatment of harmful substances such as pathogenic bacteria, virus, harmful chemicals (e.g. tobacco smoke, formaldehyde), environmental purification, indoor and outdoor and food deodorization, mildew resistance andpreservation and the like. Methods for continuously generating useful chlorine dioxide for such wide-ranging uses and compositions therefor have been proposed.
For example, Japanese patent application laid-open No. 11-278808 (patent document 1) proposes a pure chlorine dioxide solution having a chlorine dioxide gas, a chlorite salt and a pH adjuster dissolved in the components; a gel composition comprising the pure chlorine dioxide solution and a super absorbent resin; a foamable composition containing the pure chlorine dioxide solution and the foaming agent; and a container for containing the pure chlorine dioxide solution, the gel-like composition, and the foamable composition.
In addition, japanese patent laid-open No. 2005-29430 (patent document 2) proposes a method of generating chlorine dioxide gas: an organic acid or an inorganic acid, a powdery gas generation regulator or a powdery gas generation regulator and a water-absorbent resin are added to a chlorite aqueous solution to gel the chlorite aqueous solution and generate chlorine dioxide gas continuously.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open No. Hei 11-278808
Patent document 2: japanese patent laid-open No. 2005-29430
Disclosure of Invention
Problems to be solved by the invention
According to japanese patent laid-open No. 11-278808 (patent document 1) and japanese patent laid-open No. 2005-29430 (patent document 2), a method of continuously generating chlorine dioxide gas is proposed, but the generated chlorine dioxide gas has a strong pungent odor, and thus the pungent odor caused by the chlorine dioxide gas after use is a problem. Therefore, in places where a large number of people gather (for example, indoors, in automobiles, etc.), treatment of allergy-inducing substances such as pollen, dust, dander, fungi, etc.; treatment of harmful substances such as pathogenic bacteria, viruses, harmful chemicals (e.g., tobacco smoke, formaldehyde), etc.; when chlorine dioxide gas is used for environmental purification, deodorization, mold prevention, corrosion prevention, and the like of indoor and outdoor foods, there are problems that people need to retreat not only during use but also after use, and many restrictions exist.
The present disclosure is directed to a method for eliminating chlorine dioxide gas generation and a kit for eliminating chlorine dioxide gas generation, which can solve the above problems by eliminating generated chlorine dioxide gas after use.
Means for solving the problems
According to a certain aspect, the present disclosure is a method of destroying generation of chlorine dioxide gas, comprising: a gas generation step of generating chlorine dioxide gas by bringing agent A containing a chlorite salt into contact with agent B containing a gas generating agent; and a gas elimination step of eliminating chlorine dioxide gas by bringing agent C containing a chlorine dioxide reducing agent into contact with chlorine dioxide gas.
In the method for eliminating generation of chlorine dioxide gas according to the aspect of the present disclosure, the chlorine dioxide reducing agent may contain at least one selected from the group consisting of hydrogen peroxide, erythorbic acid and a salt thereof, and ascorbic acid and a salt thereof.
According to another aspect, the present disclosure is a kit for chlorine dioxide gas generation abatement, comprising: the chlorine dioxide gas generating agent comprises an agent A containing a chlorite salt, an agent B containing a gas generating agent, and an agent C containing a chlorine dioxide reducing agent, wherein the agent A and the agent B are brought into contact to generate a chlorine dioxide gas, and the agent C is brought into contact with the chlorine dioxide gas to destroy the chlorine dioxide gas.
In the kit for chlorine dioxide gas generation elimination according to the aspect of the present disclosure, the chlorine dioxide reducing agent may contain at least one selected from the group consisting of hydrogen peroxide, erythorbic acid and a salt thereof, and ascorbic acid and a salt thereof.
[ Effect of the invention ]
According to the present disclosure, it is possible to provide a method for eliminating chlorine dioxide gas generation and a set for chlorine dioxide gas generation and elimination, which can reduce an offensive odor caused by chlorine dioxide gas after use by eliminating the generated chlorine dioxide gas after use.
Drawings
Fig. 1 is a flowchart showing a method for eliminating generation of chlorine dioxide gas.
Detailed Description
< embodiment 1: method for eliminating chlorine dioxide gas
Referring to fig. 1, a method for suppressing generation of chlorine dioxide gas according to an embodiment of the present disclosure includes: a gas generation step S10 in which chlorine dioxide gas is generated by bringing agent A containing chlorite into contact with agent B containing a gas generating agent; and a gas elimination step S20 of eliminating chlorine dioxide gas by bringing agent C containing a chlorine dioxide reducing agent into contact with chlorine dioxide gas. The method for eliminating generation of chlorine dioxide gas according to the present embodiment includes the gas generation step S10 and the gas elimination step S20, and thus can eliminate generated chlorine dioxide gas after use, and thus can reduce pungent odor caused by chlorine dioxide gas after use. This makes it possible to promptly cancel the retreat of the person after the use of the chlorine dioxide gas. The use of chlorine dioxide gas is not particularly limited as long as it is effective for the treatment of the object to be treated, and includes the treatment of allergy-inducing substances such as pollen, dust, dander, and fungi; treatment of harmful substances such as pathogenic bacteria, viruses, harmful chemicals (e.g., tobacco smoke, formaldehyde), etc.; chlorine dioxide gas is used in a wide range of environmental purification, indoor and outdoor deodorization, mildew prevention, corrosion prevention and the like of foods.
With respect to chlorine dioxide gas, the United states Occupational Safety and Health Administration (OSHA) set 0.1ppm as the Exposure Limit in terms of a 1 day 8 hour Exposure (Permissible Exposure Limit-Time Weighted Average (PEL-TWA): Time Weighted Average). In japan, although there is no reference value regarding the exposure limit, it is assumed as a temporary safety reference for space sterilization using chlorine dioxide gas. From these considerations, in order to release the human from the retreat after using the chlorine dioxide gas, it is necessary to set the concentration of the chlorine dioxide gas to 0.1ppm or less.
[ gas generating step ]
The gas generation step S10 is a step of generating chlorine dioxide gas by bringing the agent a containing chlorite and the agent B containing a gas generating agent into contact with each other. In the gas generation step S10, chlorine dioxide gas for use can be efficiently generated.
(agent A)
The agent A contains chlorite. The agent a is not particularly limited as long as it contains a chlorite salt, but from the viewpoint of efficiently producing chlorine dioxide gas by efficiently contacting the agent a with the agent B described later, a chlorite salt-containing liquid is preferable, and a chlorite salt-containing aqueous liquid is more preferable. The aqueous liquid herein refers to an aqueous solution and/or aqueous dispersion in which the solvent and/or dispersion medium other than the solute such as chlorite and/or the dispersion medium contains water as a main component (the content of water in the solvent and/or dispersion medium is 50% by mass or more). From the above viewpoint, the solution a is more preferably an aqueous solution containing chlorite, and particularly preferably an aqueous solution of chlorite. The chlorite salt contained in the agent a is not particularly limited as long as it is a chlorite salt that generates chlorine dioxide gas by contact with a gas generating agent contained in the agent B described later, and examples thereof include: sodium chlorite (NaClO)2) Potassium chlorite (KClO)2) Lithium chlorite (LiClO)2) Chlorite salts of group i elements (alkali metal elements) other than hydrogen; calcium chlorite (Ca (ClO)2)2) Strontium chlorite (Sr (ClO)2)2) Barium chlorite (Ba (ClO)2)2) Magnesium chlorite (Mg (ClO)2)2) And chlorites of group ii elements. Among these, commercially available sodium chlorite is easily available and has no problem in use. The agent A may contain a substance other than chlorite as long as it does not inhibit the generation of chlorine dioxide gas by contact with the agent B described later and does not produce harmful by-products. Examples of the substance other than the gas generating agent contained in the agent A include an alkali such as sodium hydroxide (NaOH). For example, 80 mass% or more of NaClO is contained2The concept of (1) Brillite (Silibrite) (the concept of Brillite (Silibrite) 80 manufactured by Karit corporation of Japan) is preferably used as the agent A.
The aqueous chlorite solution is obtained by dissolving and/or dispersing the at least one chlorite salt in an aqueous solvent and/or dispersion medium at a predetermined concentration. When sodium chlorite is dissolved in water, a commercially available 25 mass% aqueous sodium chlorite solution used as a bleaching agent is suitably used in the case of a liquid, and a commercially available 86 mass% product, 80 mass% product, 79 mass% product, or 76 mass% product is suitably used in the case of a solid. The concentration of the chlorite aqueous solution is preferably 25 mass% or less, more preferably 15 mass% or less, and even more preferably 10 mass% or less, from the viewpoint of not being compatible with a toxic substance and a hazardous substance and being easy to handle.
(agent B)
The agent B contains a gas generating agent. The agent B is not particularly limited as long as it contains a gas generating agent, but from the viewpoint of efficiently producing chlorine dioxide gas by efficiently contacting with the agent a, a liquid containing a gas generating agent is preferred, and an aqueous liquid containing a gas generating agent is more preferred. The aqueous liquid herein refers to an aqueous solution and/or aqueous dispersion in which the solvent and/or dispersion medium other than the solute and/or dispersion medium such as the gas generating agent contains water as a main component (the content of water in the solvent and/or dispersion medium is 50% by mass or more). From the above viewpoint, the solution B is more preferably an aqueous solution containing a gas generating agent or an aqueous dispersion containing a gas generating agent, and particularly preferably an aqueous solution of a gas generating agent or an aqueous dispersion of a gas generating agent.
The gas generating agent contained in the agent B is not particularly limited as long as it generates chlorine dioxide gas by contact with the chlorite contained in the agent a, and examples thereof include: inorganic acids such as hydrochloric acid; organic acids such as citric acid, lactic acid, and malic acid. Among these, hydrochloric acid, citric acid and the like are easily available, and there is no problem in use. The agent B may contain a substance other than the gas generating agent as long as it does not inhibit the generation of chlorine dioxide gas by contact with the agent A and does not generate harmful by-products.
The gas generating agent aqueous solution is obtained by dissolving and/or dispersing the at least one gas generating agent in an aqueous solvent and/or dispersion medium at a predetermined concentration. When hydrochloric acid is dissolved in water, commercially available hydrochloric acid (35 mass% product) is diluted with water, and an aqueous hydrochloric acid solution of 5 mass% to 15 mass% is suitably used. When citric acid is dissolved in water, an aqueous citric acid solution of 20 to 40 mass% is suitably used. The dilution water is not particularly limited as long as it does not inhibit the generation of chlorine dioxide gas, but is preferably purified water such as distilled water, ion-exchanged water, Reverse Osmosis (RO) water, or the like, from the viewpoint of a small amount of impurities.
(contact of agent A with agent B)
The contact between the agent a and the agent B causes the chlorite contained in the agent a to react with the gas generating agent contained in the agent B to generate chlorine dioxide gas. The ratio of contacting the agent a with the agent B is not particularly limited, but from the viewpoint of efficiently reacting the agent a with the agent B to efficiently generate chlorine dioxide gas, (chlorite contained in the agent a): the gas generating agent (contained in the agent B) is preferably 1: 3 to 3: 1, when the gas generating agent is citric acid, the ratio of 1: 2 to 4: 1, in the above range.
The method for contacting the agent a with the agent B is not particularly limited as long as the agent a is contacted with the chlorite contained in the agent a and the gas generating agent contained in the agent B to react with each other, and for example, when both the agent a and the agent B are solid, the following methods are exemplified: an aqueous solvent (which means a solvent having a water content of 50% by mass or more, the same applies hereinafter) and/or an aqueous dispersion medium (which means a dispersion medium having a water content of 50% by mass or more, the same applies hereinafter) are added to mix the agent A and the agent B. In addition, when either one of the agent a and the agent B is an aqueous liquid (aqueous solution and/or aqueous dispersion) and the other is a solid, a method of mixing the aqueous liquid with the solid may be mentioned. When both the agent A and the agent B are aqueous liquids, a method of mixing the two aqueous liquids may be mentioned. From the viewpoint of efficiently generating chlorine dioxide gas by efficiently reacting the chlorite contained in the agent a with the gas generating agent contained in the agent B, it is preferable that either of the agent a and the agent B is an aqueous solution, and more preferably both of them are aqueous solutions.
[ gas elimination step ]
The gas elimination step S20 is a step of eliminating chlorine dioxide gas by bringing agent C containing a chlorine dioxide reducing agent into contact with chlorine dioxide gas. The gas elimination step S20 eliminates chlorine dioxide gas generated and used efficiently, thereby reducing the offensive odor caused by chlorine dioxide gas after use.
(agent C)
The agent C for destroying chlorine dioxide gas after use contains a chlorine dioxide reducing agent. The agent C is not particularly limited as long as it contains a chlorine dioxide reducing agent, but is preferably a liquid containing a chlorine dioxide reducing agent, and more preferably an aqueous liquid containing a chlorine dioxide reducing agent, from the viewpoint of efficiently contacting chlorine dioxide gas and efficiently destroying chlorine dioxide gas. The aqueous liquid herein refers to an aqueous solution and/or aqueous dispersion in which the solvent and/or dispersion medium other than the solute and/or dispersion medium such as the chlorine dioxide reducing agent is mainly composed of water (the content of water in the solvent and/or dispersion medium is 50% by mass or more). From the above viewpoint, the solution C is preferably an aqueous solution containing a chlorine dioxide reducing agent, and more preferably an aqueous solution of a chlorine dioxide reducing agent.
The chlorine dioxide reducing agent contained in the agent C is not particularly limited as long as it is a chlorine dioxide reducing agent that reduces chlorine dioxide to eliminate chlorine dioxide gas, and examples thereof include: hydrogen peroxide, erythorbic acid and salts thereof, ascorbic acid and salts thereof, and the like. The chlorine dioxide reducing agent preferably contains at least one selected from the group consisting of hydrogen peroxide, erythorbic acid and salts thereof, and ascorbic acid and salts thereof, from the viewpoints that the chlorine dioxide reducing agent itself has low toxicity, does not generate toxic substances even when chlorine dioxide is reduced, and is highly safe. Further, from the viewpoint of higher safety since no toxic substance is generated even when chlorine dioxide is self-reduced, the chlorine dioxide reducing agent is more preferably hydrogen peroxide; the chlorine dioxide reducing agent is preferably at least one selected from the group consisting of erythorbic acid and salts thereof, and ascorbic acid and salts thereof, from the viewpoint of higher safety since it has a higher ability to self-reduce chlorine dioxide and is a food additive. Here, the erythorbate salt is not particularly limited as long as it does not inhibit the reduction of chlorine dioxide, but from the viewpoint of easy availability, an erythorbate alkali metal salt such as sodium erythorbate and potassium erythorbate is preferable. The ascorbate is not particularly limited as long as it does not inhibit the reduction of chlorine dioxide, but from the viewpoint of easy availability, an ascorbate metal salt such as sodium ascorbate or potassium ascorbate is preferable. Furthermore, ascorbic acid includes D-ascorbic acid in which D isomer and L-ascorbic acid (vitamin C) in which L isomer are enantiomers, and L-ascorbic acid is more preferable from the viewpoint of easy availability. The agent C may contain a substance other than a chlorine dioxide reducing agent as long as it does not inhibit the elimination of chlorine dioxide gas by reduction of chlorine dioxide and does not generate harmful by-products.
Sodium sulfite and sodium thiosulfate, which are generally used as reducing agents, are not preferable because toxic sulfur dioxide gas, sulfurous acid gas, hydrogen sulfide gas, and the like may be generated in a weakly acidic environment. Further, hydroxylamine hydrochloride as a strong reducing agent is not preferable because it has high toxicity of vapor and is dangerous to explode when heated to a high temperature.
The aqueous solution of chlorine dioxide reducing agent is obtained by dissolving and/or dispersing the at least one chlorine dioxide reducing agent in an aqueous solvent and/or dispersion medium at a predetermined concentration. When hydrogen peroxide is dissolved in water, an aqueous hydrogen peroxide solution (hydrogen peroxide solution) of 1 mass% or more and 5 mass% or less is preferably used. When the erythorbic acid or a salt thereof is dissolved in water, an aqueous solution of 1 mass% to 5 mass% of erythorbic acid or a salt thereof is suitably used. When ascorbic acid or a salt thereof is dissolved in water, an aqueous solution of ascorbic acid or a salt thereof is preferably used in an amount of 1 to 5 mass%.
(contact of chlorine dioxide gas with agent C)
Chlorine dioxide gas is generated by contacting agent A with agent B. The generated chlorine dioxide gas is emitted into the air and used for treatment of an object to be treated (allergy-inducing substance, harmful substance, etc.). By bringing the used chlorine dioxide gas into contact with the agent C, the chlorine dioxide gas can be reduced to eliminate the chlorine dioxide gas, thereby reducing the offensive odor caused by the chlorine dioxide gas. In particular, when a large amount of chlorine dioxide gas is generated after use, the contact between the generated chlorine dioxide gas and the agent C can significantly reduce the offensive odor caused by the chlorine dioxide gas. This makes it possible to promptly cancel the retreat of the person after the use of the chlorine dioxide gas.
The ratio of the generated chlorine dioxide gas to the agent C is not particularly limited, but from the viewpoint of efficiently destroying the chlorine dioxide gas, (chlorine dioxide generated by contact of the agent a and the agent B): the molar ratio of (chlorine dioxide reducing agent contained in agent C) is preferably 100: 1 to 1: 3, preferably 50: 1 to 2: 3, or a salt thereof. In this way, the appropriate molar ratio of the chlorine dioxide reducing agent contained in the agent C to the chlorine dioxide generated by the contact between the agent a and the agent B is wide because: the contact efficiency of chlorine dioxide gas and chlorine dioxide reducing agent varies greatly depending on the size of the space in which chlorine dioxide gas is generated and extinguished. The larger the space for generating and destroying the chlorine dioxide gas, the more the chlorine dioxide gas and the chlorine dioxide reducing agent diffuse into the space and adsorb onto the wall, and the contact efficiency between the chlorine dioxide gas and the chlorine dioxide reducing agent decreases, so that the suitable molar ratio of the chlorine dioxide reducing agent contained in the agent C to the chlorine dioxide generated by the contact between the agent a and the agent B increases. In addition, hydrogen peroxide has a smaller reducing power for chlorine dioxide than erythorbic acid and salts thereof and ascorbic acid and salts thereof, and therefore the suitable molar ratio of the chlorine dioxide reducing agent contained in the agent C to chlorine dioxide generated by contact between the agent a and the agent B becomes large.
The method of bringing the generated chlorine dioxide gas into contact with the agent C is not particularly limited, but from the viewpoint of efficiently bringing the generated chlorine dioxide gas into contact with the chlorine dioxide gas dispersed into the air after generation and efficiently destroying the chlorine dioxide gas, a method of bringing the agent C into contact with the chlorine dioxide gas dispersed into the air after generation in a mist (mist) state, for example, a method of spraying the agent C onto the chlorine dioxide gas, is preferable. From the above viewpoint, the agent C is preferably an aqueous solution containing a chlorine dioxide reducing agent, and more preferably an aqueous solution of a chlorine dioxide reducing agent.
The number of times the generated chlorine dioxide gas is contacted with the agent C is not particularly limited, but is preferably a number of times from the viewpoint of efficiently contacting the chlorine dioxide gas emitted into the air after generation and efficiently destroying the chlorine dioxide gas. In particular, it is preferable that the space in which chlorine dioxide gas is present is larger, and the higher the concentration of chlorine dioxide gas is, the more the number of times of contact with the agent C is increased.
< embodiment 2: chlorine dioxide gas generation and elimination kit
Referring to fig. 1, a chlorine dioxide gas generation and elimination kit according to another embodiment of the present disclosure includes: the chlorine dioxide gas generating agent comprises an agent A containing a chlorite salt, an agent B containing a gas generating agent, and an agent C containing a chlorine dioxide reducing agent, wherein the agent A and the agent B are brought into contact to generate a chlorine dioxide gas, and the agent C is brought into contact with the chlorine dioxide gas to destroy the chlorine dioxide gas. The chlorine dioxide gas generation/elimination kit of the present embodiment includes the agent a, the agent B, and the agent C, and by bringing these into contact in a predetermined order, the generated chlorine dioxide gas can be eliminated after use, and therefore, the pungent odor caused by the chlorine dioxide gas after use can be reduced. The use of chlorine dioxide gas is not particularly limited as long as it is effective for the treatment of the object to be treated, and includes the treatment of allergy-inducing substances such as pollen, dust, dander, and fungi; treatment of harmful substances such as pathogenic bacteria, viruses, harmful chemicals (e.g., tobacco smoke, formaldehyde), etc.; chlorine dioxide gas is used in a wide range of environmental purification, indoor and outdoor deodorization, mildew prevention, corrosion prevention and the like of foods.
The agent a, the agent B, and the agent C constituting the chlorine dioxide gas generation/elimination kit according to the present embodiment; generating chlorine dioxide gas by contact of the agent a with the agent B, and destroying chlorine dioxide gas by contact of the chlorine dioxide gas with the agent C, and the agent a, the agent B, and the agent C described in the method for destroying generation of chlorine dioxide gas in embodiment 1; the gas generation step and the gas elimination step are the same, and therefore, a description thereof will not be repeated.
Examples
(example 1)
In this example, in a car (model S manufactured by Tesla (Tesla) corporation) in which there was a bad smell due to tobacco or the like, which was strongly recognized by all 3 functional inspectors (panests), ClO was generated by contact between the agent a and the agent B in an air circulation environment in which the air conditioner was operated "medium", and2gas (chlorine dioxide gas, the same applies hereinafter), and ClO produced by the gas2Contact of gas with agent C to destroy ClO2A gas.
1.ClO2Manufacture of gas generating and eliminating set
10g of 25 mass% aqueous sodium chlorite solution was prepared as the agent A, 17g of 10 mass% aqueous hydrochloric acid solution was prepared as the agent B, and 300g of 2.5 mass% aqueous sodium erythorbate solution was prepared as the agent C. The amount of the agent C was set to 300g so as to fill the trigger (trigger) type atomizer and spray the same to destroy ClO2The amount of the C agent required for the gas to have a concentration of 0.1ppm or less is extremely small as will be described later.
2. ClO production by contacting agent A with agent B2Gas (es)
In a container made of polyethylene terephthalate (PET) having an inverted square truncated pyramid shape with a bottom surface of 58 mm. times.58 mm, an opening surface of 83 mm. times.83 mm and a height of 30mm, the total amount of the agent A and the total amount of the agent B are mixed, so that the agent A and the agent B are brought into contact with each other to generate ClO2A gas. Table 1 summarizes the elapsed time from the contact of the agent A and the agent B by mixing and the ClO in the passenger car2The concentration of the gas. With respect to ClO2The concentration of the gas was measured using a northern detector tube for a concentration of 1.0ppm or more, and measured using a gas technology (Gastec) low concentration detector tube No.23M or No.23L for a concentration of less than 1.0 ppm. ClO2The concentration of the gas is determined byAnd inserting the measuring part of the detecting tube into the car under the state of keeping the air tightness in the car.
3. By the ClO produced2Contact of gas with agent C to destroy ClO2Gas (es)
ClO was measured when 90 minutes elapsed from the time when the agent A and the agent B were brought into contact by mixing2After the gas concentration, the generated ClO remains2The contacted agent a and agent B were taken out from the car and the agent C charged into the trigger sprayer was sprayed 5 times (4.75 g as a whole) in the car. ClO in a passenger car after 95 minutes from the time when the agent A and the agent B are brought into contact by mixing (i.e., after 5 minutes from the time when the agent C is sprayed)2The gas concentrations are shown in table 1. ClO at this time, as shown in Table 12The concentration of the gas was 0.05ppm, which is below the allowable exposure concentration of 0.1ppm for 8 hour exposure (PEL-TWA) as set by the united states Occupational Safety and Health Agency (OSHA). At this time, the ClO in the car2The pungent odor caused by the gas was recognized very slightly by all of the 3 functional inspectors, but was reduced to such an extent that no discomfort was felt. In this case, all of the 3 functional inspectors did not recognize the odor caused by tobacco or the like in the car, and the odor caused by tobacco or the like was eliminated. In addition, all of the 3 functional inspectors did not recognize the air conditioner exhaust odor, and the air conditioner exhaust odor disappeared.
[ Table 1]
(example 2)
In this example, in a car (aka (AQUA) manufactured by Toyota) having offensive odor due to tobacco or the like, which was strongly recognized by all 3 functional inspectors, ClO generation by contact between the agent a and the agent B was performed in an air circulation environment in which the air conditioner was operated at "medium (indicated value 24)"2Gas, and ClO produced by the gas2Contact of gas with agent C to destroy ClO2A gas.
1.ClO2Manufacture of gas generating and eliminating set
10g of 25 mass% aqueous sodium chlorite solution, 17g of 10 mass% aqueous hydrochloric acid solution, and 300g of 2.5 mass% aqueous L-ascorbic acid solution were prepared as the agent a, the agent B, and the agent C. Here, the reason why 300g of the C agent was charged into a trigger type sprayer and sprayed was to destroy ClO2The amount of the C agent required for the gas to have a concentration of 0.1ppm or less is extremely small as will be described later.
2. ClO production by contacting agent A with agent B2Gas (es)
In a PET container having the same shape and size as in example 1, the total amount of the agent A and the total amount of the agent B were mixed to bring the agent A and the agent B into contact with each other to generate ClO2A gas. Table 2 summarizes the elapsed time from the contact of the agent A and the agent B by mixing and the ClO in the passenger car2The concentration of the gas. With respect to ClO2The concentration of the gas was measured using a northern detector tube for a concentration of 1.0ppm or more, and measured using a gas technology (Gastec) low concentration detector tube No.23M or No.23L for a concentration of less than 1.0 ppm. ClO2The gas concentration is measured by inserting the measuring portion of the detection tube into the passenger car while ensuring airtightness in the passenger car.
3. By the ClO produced2Contact of gas with agent C to destroy ClO2Gas (es)
ClO was measured when 90 minutes elapsed from the time when the agent A and the agent B were brought into contact by mixing2After the gas concentration, the generated ClO remains2The contacted agent a and agent B were taken out from the car and the agent C charged into the trigger sprayer was sprayed 5 times (4.75 g as a whole) in the car. ClO in the passenger car after 95 minutes from the time when the agent A and the agent B are brought into contact by mixing (i.e., after 5 minutes from the time when the agent C is sprayed)2The gas concentrations are shown in table 2. ClO at this time, as shown in Table 22The concentration of the gas was 0.05ppm, the allowable exposure concentration for 8 hour exposure (PEL-TWA) set by the American Occupational Safety and Health Administration (OSHA), i.e., theLess than 0.1 ppm. At this time, the ClO in the car2The pungent odor caused by the gas was recognized very slightly by all of the 3 functional inspectors, but was reduced to such an extent that no discomfort was felt. In this case, all of the 3 functional inspectors did not recognize the odor caused by tobacco or the like in the car, and the odor caused by tobacco or the like disappeared. In addition, all of the 3 functional inspectors did not recognize the air conditioner exhaust odor, and the air conditioner exhaust odor disappeared.
[ Table 2]
(example 3)
In this example, a room (capacity 21.7 m) large in 6 tatami (tatami) was used in which all of 3 functional examiners strongly recognized that there was an offensive odor due to formaldehyde3: 2.93 m.times.3.37 m.times.2.2 m), production of ClO by contacting agent A with agent B2Gas, and ClO produced by the gas2Contact of gas with agent C to destroy ClO2A gas.
1.ClO2Manufacture of gas generating and eliminating set
18g of a 25 mass% aqueous sodium chlorite solution was prepared as the agent A, 30g of a 30 mass% aqueous citric acid solution was prepared as the agent B, and 300g of a 2.5 mass% aqueous sodium erythorbate solution was prepared as the agent C. The amount of the C agent was set to 300g to fill the trigger type spray and spray the trigger type spray to eliminate ClO2The amount of the C agent required for the gas to be contained in a concentration of 0.1ppm or less is small as described later.
2. ClO production by contacting agent A with agent B2Gas (es)
In a PET container having the same shape and size as in example 1, the total amount of the agent A and the total amount of the agent B were mixed to bring the agent A and the agent B into contact with each other to generate ClO2A gas. Table 3 summarizes the elapsed time from the contact of the agent A and the agent B by mixing and the ClO in a room with a size of 6 tatami sheets2The concentration of the gas. With respect to ClO2Of gasesThe concentration was measured using a northern detector tube for a concentration of 1.0ppm or more, and a gas technology (Gastec) low concentration detector tube No.23M or No.23L for a concentration of less than 1.0 ppm.
3. By the ClO produced2Contact of gas with agent C to destroy ClO2Gas (es)
After 6.25 hours has elapsed since the agent A and the agent B were brought into contact with each other by mixing, the generated ClO remains2The contacted agent a and agent B were taken out from the 6 tatami-sized rooms, and the agent C charged into the trigger sprayer was sprayed 35 times (33.25 g as a whole) in the 6 tatami-sized rooms (referred to as one spray of the agent C, the same applies hereinafter). Here, the agent C was sprayed once in the following manner. The room with 6 tatami sizes is divided into an outer area, a middle area and an inner area which are areas with the same size from an entrance door to the inside, the areas are sprayed for uniform expansion 15 times from the outer side of the inner area to the inner side at different positions, the areas are sprayed for uniform expansion 10 times from the outer side of the middle area to the inner side at different positions, and the areas are sprayed for uniform expansion 10 times from the inner side of the outer area to the outer side at different positions. ClO in the 6 tatami-sized room after 7.25 hours from the time when the agent A and the agent B were contacted by mixing (i.e., after 1 hour from the time of one spray of the agent C)2The gas concentration was reduced to 0.75ppm as shown in Table 3.
Then, after 7.5 hours from the time when the agent a and the agent B were contacted by mixing, the agent C was sprayed 10 times (9.5 g as a whole) in the 6 tatami-sized room (referred to as secondary spraying of the agent C, the same applies hereinafter). Here, regarding the secondary spraying of the agent C, 4 times are sprayed from the outside toward the inside of the inner region at different positions so as to be uniformly spread, 3 times are sprayed from the outside toward the inside of the middle region at different positions so as to be uniformly spread, and 3 times are sprayed from the inside toward the outside of the outer region at different positions so as to be uniformly spread. 6 tatami-sized rooms after 8.5 hours from the time when agent A and agent B were contacted by mixing (i.e., after 1 hour from the time of the second spray of agent C)ClO in between2The gas concentration was reduced to 0.10ppm, as shown in Table 3, to 0.1ppmm, which is the upper limit of the allowable exposure concentration for 8 hour exposure (PEL-TWA) set by the United states Occupational Safety and Health Administration (OSHA).
Further, after 8.75 hours from the time when the agent a and the agent B were brought into contact by mixing, the agent C was sprayed 2 times (1.9 g as a whole) in the room having a size of 6 tatami (referred to as three-time spraying of the agent C, the same applies hereinafter). Here, the agent C was sprayed three times in the following manner. The room with the size of 6 tatami was divided into an outer area and an inner area, which were equal to each other in size, from the entrance door inward, and the inside area was sprayed 1 time from the outside toward the inside and 1 time from the inside toward the outside of the outer area. ClO in the 6 tatami-sized room after 9.0 hours from the time when the agent A and the agent B were contacted by mixing (i.e., after 0.25 hours from the time of three sprays of the agent C)2The gas concentration is reduced to 0.05ppm, below the allowable exposure concentration of 0.1ppm for 8 hour exposure (PEL-TWA) as set by the united states Occupational Safety and Health Agency (OSHA), as shown in table 3. In this case, ClO represents the space of the 6 tatami rooms2The pungent odor caused by the gas was recognized very slightly by all of the 3 functional inspectors, but was reduced to such an extent that no discomfort was felt. In this case, all of the 3 functional examiners did not recognize the malodor caused by formaldehyde in the room with 6 tatami sizes, and the malodor caused by formaldehyde disappeared. In addition, all of the 3 functional inspectors did not recognize the air conditioner exhaust odor, and the air conditioner exhaust odor disappeared.
[ Table 3]
(example 4)
In this example, a room 6 tatami-large (capacity 21.7 m) was used in which all of 3 functional examiners strongly recognized the offensive odor caused by formaldehyde3: 2.93 m.times.3.37 m.times.2.2 m), production of ClO by contacting agent A with agent B2Gas, and ClO produced by the gas2Contact of gas with agent C to destroy ClO2A gas.
1.ClO2Manufacture of gas generating and eliminating set
As the agent C, 18g of a 25 mass% aqueous sodium chlorite solution was prepared as the agent a, 30g of a 30 mass% aqueous citric acid solution was prepared as the agent B, and 300g of an aqueous hydrogen peroxide solution (oxyful (Oxydol) manufactured by jirong pharmaceutical company) was prepared as the agent C, wherein the aqueous hydrogen peroxide solution was 3.0 mass/volume% (also referred to as w/v%. this means a concentration of 3g of hydrogen peroxide in 100mL of the aqueous solution). The amount of the C agent was set to 300g to fill the trigger type spray and spray the trigger type spray to eliminate ClO2The amount of the C agent required for the gas to have a concentration of 0.1ppm or less is extremely small as will be described later.
2. ClO production by contacting agent A with agent B2Gas (es)
In a PET container having the same shape and size as in example 1, the total amount of the agent A and the total amount of the agent B were mixed to bring the agent A and the agent B into contact with each other to generate ClO2A gas. Table 4 summarizes the elapsed time from the contact of the agent A and the agent B by mixing and the ClO in a room with a size of 6 tatami sheets2The concentration of the gas. With respect to ClO2The concentration of the gas was measured using a northern detector tube for a concentration of 1.0ppm or more, and measured using a gas technology (Gastec) low concentration detector tube No.23M or No.23L for a concentration of less than 1.0 ppm.
3. By the ClO produced2Contact of gas with agent C to destroy ClO2Gas (es)
After 6.33 hours have elapsed since the agent A and the agent B were brought into contact with each other by mixing, the generated ClO remains2The contacted agent a and agent B were taken out from the 6 tatami-sized rooms, and the agent C charged into the trigger sprayer was sprayed 35 times (25.9 g as a whole) in the 6 tatami-sized rooms (referred to as one spray of the agent C, the same applies hereinafter). Here, the agent C was sprayed once in the following manner. Dividing the room with 6 tatami areas into an outer area, a middle area and an inner area which are areas with the same size from the entrance door to the inside from the insideThe outer side of the region was sprayed 15 times at different positions toward the inner side so as to spread uniformly, the outer side of the middle region was sprayed 10 times at different positions toward the inner side so as to spread uniformly, and the inner side of the outer region was sprayed 10 times at different positions toward the outer side so as to spread uniformly. ClO in the 6 tatami-sized room after 7.35 hours from the time when the agent A and the agent B were contacted by mixing (i.e., after 1.02 hours from the time of one spray of the agent C)2The gas concentration was reduced to 1.40ppm as shown in Table 4.
Then, after 7.75 hours from the time when the agent a and the agent B were contacted by mixing, the agent C was sprayed 10 times (7.4 g as a whole) in the 6 tatami-sized room (referred to as secondary spraying of the agent C, the same applies hereinafter). Here, regarding the secondary spraying of the agent C, 4 times are sprayed from the outside toward the inside of the inner region at different positions so as to be uniformly spread, 3 times are sprayed from the outside toward the inside of the middle region at different positions so as to be uniformly spread, and 3 times are sprayed from the inside toward the outside of the outer region at different positions so as to be uniformly spread. ClO in the 6 tatami-sized room after 8.85 hours from the time when the agent A and the agent B were contacted by mixing (i.e., after 1.1 hours from the time of the second spraying of the agent C)2The gas concentration was reduced to 0.55ppm as shown in Table 4.
Further, after 9.0 hours had elapsed since the contact of the agent a and the agent B by mixing, the agent C was sprayed 10 times (7.4 g as a whole) in the room with 6 tatami (referred to as three sprays of the agent C, the same applies hereinafter). Here, regarding the three sprays of the agent C, the inner region is sprayed 4 times from the outer side toward the inner side at different positions so as to spread uniformly, the middle region is sprayed 3 times from the outer side toward the inner side at different positions so as to spread uniformly, and the outer region is sprayed 3 times from the inner side toward the outer side at different positions so as to spread uniformly. ClO in the 6 tatami-sized room after 10.0 hours from the time when the agent A and the agent B were contacted by mixing (i.e., after 1.0 hour from the time of three sprays of the agent C)2The gas concentration was reduced to 0.23ppm as shown in Table 4.
Further, inAfter 10.05 hours had elapsed since the contact of the agent a and the agent B by mixing, the agent C was sprayed 10 times (7.4 g as a whole) in the 6 tatami-sized room described above (referred to as four sprays of the agent C, the same applies hereinafter). Here, regarding the four sprays of the C agent, the spray was sprayed 4 times at different positions from the outer side toward the inner side of the inner region so as to spread uniformly, the spray was sprayed 3 times at different positions from the outer side toward the inner side of the middle region so as to spread uniformly, and the spray was sprayed 3 times at different positions from the inner side toward the outer side of the outer region so as to spread uniformly. ClO in the 6 tatami-sized room after 11.0 hours from the time when the agent A and the agent B were contacted by mixing (i.e., after 0.95 hours from the time of four sprays of the agent C)2The gas concentration is reduced to 0.05ppm, below the allowable exposure concentration of 0.1ppm for 8 hour exposure (PEL-TWA) as set by the united states Occupational Safety and Health Agency (OSHA), as shown in table 4. In this case, ClO represents the space of the 6 tatami rooms2The pungent odor caused by the gas was recognized very slightly by all of the 3 functional inspectors, but was reduced to such an extent that no discomfort was felt. In this case, all of the 3 functional examiners did not recognize the malodor caused by formaldehyde in the room with 6 tatami sizes, and the malodor caused by formaldehyde disappeared. In addition, all of the 3 functional inspectors did not recognize the air conditioner exhaust odor, and the air conditioner exhaust odor disappeared.
[ Table 4]
Examples 1 to 4 were as shown in tables 1 to 4, respectively, based on ClO as follows2Gas generation/elimination kit, and ClO2Method for eliminating gas generation by eliminating generated ClO after use2Gas, reducing the amount of ClO after use2Pungent odor due to gas, wherein the ClO is2The gas generation and elimination kit comprises: an agent A containing chlorite, an agent B containing a gas generating agent, and an agent C containing a chlorine dioxide reducing agent, andClO production by contacting agent A with agent B2Gas by contacting agent C with ClO2Gas to destroy ClO2Gas of said ClO2The method for producing and destroying gas comprises the following steps: a gas generation step of bringing an agent A containing chlorite into contact with an agent B containing a gas generating agent to generate ClO2A gas; and a gas elimination step of bringing agent C containing a chlorine dioxide reducing agent into contact with ClO2Gas to destroy ClO2A gas. Thus, in using ClO2There is no problem such as the escape of people after the gas, and even in a room or an automobile where a large number of people gather, it is possible to treat allergy-inducing substances such as pollen, dust, dandruff, and fungi; treatment of harmful substances such as pathogenic bacteria, viruses, harmful chemicals (e.g., tobacco smoke, formaldehyde), etc.; ClO is widely used in environmental purification, deodorization, mildew prevention and corrosion prevention2A gas.
ClO produced by contacting agent C as shown in said examples 1-42Gas, eliminating ClO2Gas, thereby reducing the content of ClO2Pungent odor caused by gas.
It should be considered that the embodiments and examples disclosed herein are illustrative in all respects and not restrictive. The scope of the present invention is defined by the claims, not by the description, and all changes that come within the meaning and range equivalent to the claims are intended to be embraced therein.
Description of the symbols
S10: gas generation step
S20: gas elimination step
Claims (4)
1. A method of destroying the generation of chlorine dioxide gas comprising:
a gas generation step of generating chlorine dioxide gas by bringing agent A containing a chlorite salt into contact with agent B containing a gas generating agent; and
a gas destroying step of destroying the chlorine dioxide gas by contacting the chlorine dioxide gas with a C agent containing a chlorine dioxide reducing agent.
2. The method for suppressing generation of chlorine dioxide gas according to claim 1, wherein the chlorine dioxide reducing agent contains at least one selected from the group consisting of hydrogen peroxide, erythorbic acid and a salt thereof, and ascorbic acid and a salt thereof.
3. A kit for chlorine dioxide gas generation abatement, comprising: an agent A containing chlorite, an agent B containing a gas generating agent, and an agent C containing a chlorine dioxide reducing agent, and
generating chlorine dioxide gas by contacting said agent A with said agent B,
destroying said chlorine dioxide gas by contacting said agent C with said chlorine dioxide gas.
4. A set for chlorine dioxide gas generation elimination according to claim 3, wherein the chlorine dioxide reducing agent contains at least one selected from the group consisting of hydrogen peroxide, erythorbic acid and salts thereof, and ascorbic acid and salts thereof.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018-147030 | 2018-08-03 | ||
| JP2018147030A JP6961550B2 (en) | 2018-08-03 | 2018-08-03 | Chlorine dioxide gas generation and extinction method and chlorine dioxide gas generation and extinction kit |
| PCT/JP2019/029681 WO2020027060A1 (en) | 2018-08-03 | 2019-07-29 | Method for producing and eliminating chlorine dioxide gas, and kit for producing and eliminating chlorine dioxide gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112512963A true CN112512963A (en) | 2021-03-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201980050345.9A Pending CN112512963A (en) | 2018-08-03 | 2019-07-29 | Method for generating and eliminating chlorine dioxide gas and kit for generating and eliminating chlorine dioxide gas |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6961550B2 (en) |
| CN (1) | CN112512963A (en) |
| TW (1) | TWI778284B (en) |
| WO (1) | WO2020027060A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI241274B (en) * | 2002-03-15 | 2005-10-11 | West King Technology Co Ltd | A process and equipment for the treatment of chlorine dioxide from sodium |
| JP2006290717A (en) * | 2005-04-10 | 2006-10-26 | Taiko:Kk | Method for generating chlorine dioxide |
| JP2010077004A (en) * | 2008-09-29 | 2010-04-08 | Taikoo:Kk | Method for stabilizing chlorite solution, stabilized chlorite solution, method for generating chlorine dioxide and method for removing the same |
| WO2015136478A1 (en) * | 2014-03-12 | 2015-09-17 | Aqua Ecologic | Stable chlorine dioxide composition and method of preparation |
| EP3153184A2 (en) * | 2015-09-16 | 2017-04-12 | Aqua Ecologic | Method and system for disinfecting with chlorine dioxide gas |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2010257064B2 (en) * | 2009-06-04 | 2015-11-05 | Sabre Intellectual Property Holdings Llc | Decontamination of enclosed space using gaseous chlorine dioxide |
-
2018
- 2018-08-03 JP JP2018147030A patent/JP6961550B2/en active Active
-
2019
- 2019-07-29 WO PCT/JP2019/029681 patent/WO2020027060A1/en active Application Filing
- 2019-07-29 CN CN201980050345.9A patent/CN112512963A/en active Pending
- 2019-08-01 TW TW108127365A patent/TWI778284B/en active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI241274B (en) * | 2002-03-15 | 2005-10-11 | West King Technology Co Ltd | A process and equipment for the treatment of chlorine dioxide from sodium |
| JP2006290717A (en) * | 2005-04-10 | 2006-10-26 | Taiko:Kk | Method for generating chlorine dioxide |
| JP2010077004A (en) * | 2008-09-29 | 2010-04-08 | Taikoo:Kk | Method for stabilizing chlorite solution, stabilized chlorite solution, method for generating chlorine dioxide and method for removing the same |
| WO2015136478A1 (en) * | 2014-03-12 | 2015-09-17 | Aqua Ecologic | Stable chlorine dioxide composition and method of preparation |
| EP3153184A2 (en) * | 2015-09-16 | 2017-04-12 | Aqua Ecologic | Method and system for disinfecting with chlorine dioxide gas |
Non-Patent Citations (1)
| Title |
|---|
| 刘秀艳: "二氧化氯的制备及其在水处理中的应用", 《城市管理与科技》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI778284B (en) | 2022-09-21 |
| JP2020019696A (en) | 2020-02-06 |
| JP6961550B2 (en) | 2021-11-05 |
| TW202007640A (en) | 2020-02-16 |
| WO2020027060A1 (en) | 2020-02-06 |
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Application publication date: 20210316 |