JP2021127277A - Chlorine dioxide generating agent and method of generating the same - Google Patents
Chlorine dioxide generating agent and method of generating the same Download PDFInfo
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- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 title claims abstract description 161
- 239000004155 Chlorine dioxide Substances 0.000 title claims abstract description 83
- 235000019398 chlorine dioxide Nutrition 0.000 title claims abstract description 83
- 239000003795 chemical substances by application Substances 0.000 title claims description 6
- 238000000034 method Methods 0.000 title claims 2
- 239000011148 porous material Substances 0.000 claims abstract description 50
- 229910052783 alkali metal Inorganic materials 0.000 claims abstract description 39
- -1 alkali metal chlorite salt Chemical class 0.000 claims abstract description 39
- 150000008044 alkali metal hydroxides Chemical class 0.000 claims abstract description 17
- 239000007864 aqueous solution Substances 0.000 claims description 18
- 238000009835 boiling Methods 0.000 claims description 15
- 229910001919 chlorite Inorganic materials 0.000 claims description 14
- 229910052619 chlorite group Inorganic materials 0.000 claims description 14
- 239000000243 solution Substances 0.000 claims description 13
- 238000001035 drying Methods 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 229940077239 chlorous acid Drugs 0.000 claims description 6
- 238000005470 impregnation Methods 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 229910000288 alkali metal carbonate Inorganic materials 0.000 claims description 4
- 150000008041 alkali metal carbonates Chemical class 0.000 claims description 4
- 239000000872 buffer Substances 0.000 claims description 4
- 239000003513 alkali Substances 0.000 claims description 3
- 230000000840 anti-viral effect Effects 0.000 abstract description 8
- 230000001954 sterilising effect Effects 0.000 abstract description 8
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 8
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000002253 acid Substances 0.000 description 5
- UKLNMMHNWFDKNT-UHFFFAOYSA-M sodium chlorite Chemical compound [Na+].[O-]Cl=O UKLNMMHNWFDKNT-UHFFFAOYSA-M 0.000 description 5
- 229960002218 sodium chlorite Drugs 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000007853 buffer solution Substances 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 239000004745 nonwoven fabric Substances 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 230000000843 anti-fungal effect Effects 0.000 description 2
- 229940121375 antifungal agent Drugs 0.000 description 2
- QBWCMBCROVPCKQ-UHFFFAOYSA-N chlorous acid Chemical compound OCl=O QBWCMBCROVPCKQ-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000002759 woven fabric Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- 239000004113 Sepiolite Substances 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000001340 alkali metals Chemical group 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000002155 anti-virotic effect Effects 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical group O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 229910052901 montmorillonite Inorganic materials 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 235000019645 odor Nutrition 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910001562 pearlite Inorganic materials 0.000 description 1
- 229910000028 potassium bicarbonate Inorganic materials 0.000 description 1
- 235000015497 potassium bicarbonate Nutrition 0.000 description 1
- 239000011736 potassium bicarbonate Substances 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 235000011181 potassium carbonates Nutrition 0.000 description 1
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 description 1
- 229940086066 potassium hydrogencarbonate Drugs 0.000 description 1
- VISKNDGJUCDNMS-UHFFFAOYSA-M potassium;chlorite Chemical compound [K+].[O-]Cl=O VISKNDGJUCDNMS-UHFFFAOYSA-M 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910052624 sepiolite Inorganic materials 0.000 description 1
- 235000019355 sepiolite Nutrition 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 238000013268 sustained release Methods 0.000 description 1
- 239000012730 sustained-release form Substances 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- 238000007601 warm air drying Methods 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Landscapes
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
Description
本発明は二酸化塩素発生剤及びその製造方法に関し、徐放性、携帯性に優れた二酸化塩素発生剤と二酸化塩素発生剤の製造方法に関する。 The present invention relates to a chlorine dioxide generator and a method for producing the same, and relates to a chlorine dioxide generator having excellent sustained release and portability and a method for producing the chlorine dioxide generator.
二酸化塩素は強力な酸化作用を有することから、生活臭の消臭、除菌、抗ウイルス、防かび、漂白等の各種の分野において以前から使用されている。しかしながら、二酸化塩素自体は気体であり、空気中、使用環境中に拡散してしまい、有効な濃度を維持することは容易ではない。二酸化塩素の濃度を必要以上に高めると、人体にも有害である。また、除菌、抗ウイルス、防かび等の効果を高めるには、二酸化塩素は長期間にわたり持続的に放出されることが求められる。 Since chlorine dioxide has a strong oxidizing action, it has been used for a long time in various fields such as deodorization of daily odors, sterilization, antiviral, antifungal, and bleaching. However, chlorine dioxide itself is a gas and diffuses in the air and the environment in which it is used, so it is not easy to maintain an effective concentration. If the concentration of chlorine dioxide is increased more than necessary, it is harmful to the human body. Further, in order to enhance the effects of sterilization, antiviral, antifungal and the like, chlorine dioxide is required to be continuously released for a long period of time.
例えば、シリカアルミナの多孔質の担持体に亜塩素酸溶液を含浸させた二酸化塩素発生の組成物が提案されている（特許文献１、２等参照）。しかしながら、月単位で二酸化塩素を放出し続ける発生剤では無く、ヒトの生活空間の除菌、抗ウイルスの用途には必ずしも向いてはいなかった。 For example, a composition for generating chlorine dioxide in which a porous carrier of silica-alumina is impregnated with a chlorous acid solution has been proposed (see Patent Documents 1, 2, etc.). However, it is not a generator that continuously releases chlorine dioxide on a monthly basis, and is not always suitable for sterilization of human living spaces and antiviral applications.
本発明は前記の点に鑑みなされたものであり、ヒトの生活空間の除菌、抗ウイルスの用途に適した月単位で二酸化塩素を放出し続けて濃度を維持し得る二酸化塩素発生剤、及び二酸化塩素発生剤の製造方法を提供する。 The present invention has been made in view of the above points, a chlorine dioxide generator capable of continuously releasing chlorine dioxide on a monthly basis suitable for sterilization of human living space, antiviral use, and maintaining the concentration, and a chlorine dioxide generator. A method for producing a chlorine dioxide generator is provided.
すなわち、二酸化塩素発生剤は、亜塩素酸アルカリ金属塩を、多孔質材に担持させた二酸化塩素発生剤であって、二酸化塩素発生剤における亜塩素酸アルカリ金属塩は５ないし１０重量％であり、多孔質材は９０ないし９５重量％であることを特徴とする。 That is, the chlorine dioxide generator is a chlorine dioxide generator in which a chlorine dioxide alkali metal salt is supported on a porous material, and the chlorine dioxide alkali metal salt in the chlorine dioxide generator is 5 to 10% by weight. The porous material is 90 to 95% by weight.
さらに、二酸化塩素発生剤にアルカリ金属水酸化物が添加されることを特徴とする。 Further, it is characterized in that an alkali metal hydroxide is added to the chlorine dioxide generator.
さらに、亜塩素酸アルカリ金属塩とアルカリ金属水酸化物を含有する水溶液が多孔質材に含浸されることを特徴とする。 Further, the porous material is impregnated with an aqueous solution containing an alkali metal chlorite salt and an alkali metal hydroxide.
さらに、アルカリ金属水酸化物、アルカリ金属炭酸塩、及びアルカリ金属炭酸水素塩を含有するアルカリ緩衝液に亜塩素酸アルカリ金属塩を溶解した溶解液が多孔質材に含浸されることを特徴とする。 Further, it is characterized in that the porous material is impregnated with a solution obtained by dissolving an alkali metal chlorite in an alkali buffer solution containing an alkali metal hydroxide, an alkali metal carbonate, and an alkali metal hydrogen carbonate. ..
二酸化塩素発生剤が通気性を有する包装体に収容される二酸化塩素発生体であることを特徴とする。 The chlorine dioxide generator is a chlorine dioxide generator housed in a breathable package.
二酸化塩素発生剤の製造方法は、亜塩素酸アルカリ金属塩とアルカリ金属水酸化物を含有するアルカリ水溶液を調製する溶液調製工程と、多孔質材を煮沸して煮沸多孔質材を得る煮沸工程と、アルカリ水溶液中に煮沸多孔質材を浸漬して含浸多孔質材を得る含浸工程と、含浸多孔質材を乾燥して二酸化塩素発生剤を得る乾燥工程とを備えることを特徴とする。 The method for producing the chlorine dioxide generator includes a solution preparation step of preparing an alkaline aqueous solution containing an alkali metal chlorite salt and an alkali metal hydroxide, and a boiling step of boiling a porous material to obtain a boiling porous material. It is characterized by comprising an impregnation step of immersing a boiling porous material in an alkaline aqueous solution to obtain an impregnated porous material, and a drying step of drying the impregnated porous material to obtain a chlorine dioxide generator.
本発明の二酸化塩素発生剤によると、亜塩素酸アルカリ金属塩を、多孔質材に担持させた二酸化塩素発生剤であって、二酸化塩素発生剤における亜塩素酸アルカリ金属塩は５ないし１０重量％であり、多孔質材は９０ないし９５重量％であるため、ヒトの生活空間の除菌、抗ウイルスの用途に適した月単位で二酸化塩素を放出し続けて濃度を維持し得る。 According to the chlorine dioxide generator of the present invention, it is a chlorine dioxide generator in which a chlorine dioxide alkali metal salt is supported on a porous material, and the chlorine dioxide alkali metal salt in the chlorine dioxide generator is 5 to 10% by weight. Since the porous material is 90 to 95% by weight, chlorine dioxide can be continuously released on a monthly basis suitable for sterilization of human living space and antiviral use to maintain the concentration.
本発明の二酸化塩素発生剤の製造方法によると、亜塩素酸アルカリ金属塩とアルカリ金属水酸化物を含有するアルカリ水溶液を調製する溶液調製工程と、多孔質材を煮沸して煮沸多孔質材を得る煮沸工程と、アルカリ水溶液中に煮沸多孔質材を浸漬して含浸多孔質材を得る含浸工程と、含浸多孔質材を乾燥して二酸化塩素発生剤を得る乾燥工程とを備えるため、ヒトの生活空間の除菌、抗ウイルスの用途に適した月単位で二酸化塩素を放出し続ける二酸化塩素発生剤を簡便に製造することができる。 According to the method for producing a chlorine dioxide generator of the present invention, a solution preparation step of preparing an alkaline aqueous solution containing an alkali metal chlorite salt and an alkali metal hydroxide, and boiling a porous material to prepare a boiling porous material. A human step of immersing the boiling porous material in an alkaline aqueous solution to obtain an impregnated porous material, and a drying step of drying the impregnated porous material to obtain a chlorine dioxide generator are provided. It is possible to easily produce a chlorine dioxide generator that continuously releases chlorine dioxide on a monthly basis, which is suitable for sterilization of living spaces and anti-virus applications.
実施形態の二酸化塩素発生剤は、多孔質材に亜塩素酸アルカリ金属塩を担持させた形態である。亜塩素酸アルカリ金属塩は、一般に入手可能な亜塩素酸ナトリウムまたは亜塩素酸カリウムである。亜塩素酸アルカリ金属塩が分解して二酸化塩素が発生する。 The chlorine dioxide generator of the embodiment is a form in which an alkali metal chlorite is supported on a porous material. The alkali metal chlorite salt is commonly available sodium chlorite or potassium chlorite. Chlorous acid alkali metal salt decomposes to generate chlorine dioxide.
多孔質材は、その構造中に微細な空隙の存在する構造体である。具体的には、ゼオライト、セピオライト、パリゴルスカイト、モンモリロナイト、シリカゲル、珪藻土、パーライト、シリカアルミナ、ケイ酸カルシウム、多孔質のセラミックス等から選択される。多孔質材は亜塩素酸アルカリ金属塩を自身の細孔内に保持して徐放させる。多孔質材形状は適宜である。また、多孔質材の大きさは０．６ないし１．９ｍｍ程度の粒状である。 A porous material is a structure in which fine voids are present in the structure. Specifically, it is selected from zeolite, sepiolite, parigolskite, montmorillonite, silica gel, diatomaceous earth, pearlite, silica alumina, calcium silicate, porous ceramics and the like. The porous material retains the alkali metal chlorite in its pores and releases it slowly. The shape of the porous material is appropriate. The size of the porous material is granular with a size of about 0.6 to 1.9 mm.
二酸化塩素発生剤の全体において、亜塩素酸アルカリ金属塩は５ないし１０重量％であり、多孔質材は９０ないし９５重量％の重量配分となる。全体に占める亜塩素酸アルカリ金属塩の割合は、製造可能な範囲から導き出される。 In the whole chlorine dioxide generator, the chlorous acid alkali metal salt has a weight distribution of 5 to 10% by weight, and the porous material has a weight distribution of 90 to 95% by weight. The proportion of chlorite alkali metal salt in the whole is derived from the manufacturable range.
さらに、二酸化塩素発生剤には、アルカリ金属水酸化物が添加される。アルカリ金属水酸化物は、具体的には水酸化ナトリウム、水酸化カリウムである。アルカリ金属水酸化物は亜塩素酸アルカリ金属塩をアルカリ性側に維持するために添加される。亜塩素酸アルカリ金属塩は中性ないし酸性側では分解が速まるため、二酸化塩素の放出時間（放出期間）が短くなるためである。 Further, an alkali metal hydroxide is added to the chlorine dioxide generator. Specific examples of the alkali metal hydroxide are sodium hydroxide and potassium hydroxide. Alkali metal hydroxides are added to keep the alkali metal chlorite salt on the alkaline side. This is because the chlorous acid alkali metal salt decomposes faster on the neutral or acidic side, so that the chlorine dioxide release time (release period) is shortened.
この二酸化塩素発生剤は、ほぼ多孔質材の形状のままとなる。従って、前述の粒径の大きさのとおり砂状である。そこで、二酸化塩素発生剤は、取り扱いの利便性の点から通気性を有する包装体の内部に適量収容されて二酸化塩素発生体となる。包装体は、綿布、麻布、ガーゼ等の織布、不織布等である。収容後には開口部分が封止される。織布、不織布は通気部分が多いため、内容物の二酸化塩素発生剤に担持された亜塩素酸アルカリ金属塩が分解して生じた二酸化塩素が通過して周囲に拡散可能となる。 This chlorine dioxide generator remains in the form of a nearly porous material. Therefore, it is sandy as described above in terms of particle size. Therefore, the chlorine dioxide generator is contained in an appropriate amount inside the breathable package from the viewpoint of convenience of handling, and becomes a chlorine dioxide generator. The packaging body is cotton cloth, linen cloth, woven cloth such as gauze, non-woven fabric, or the like. After containment, the opening is sealed. Since woven fabrics and non-woven fabrics have many ventilated parts, chlorine dioxide generated by decomposition of the alkali metal chlorite carried on the chlorine dioxide generator in the contents can pass through and diffuse to the surroundings.
さらに、織布または不織布の包装体は、適宜形状の樹脂製のケース体内に収容されても良い。包装体のままでは形状の保持が難しい。そこで、ケース体を介して包装体は室内、洗面所、化粧室等に設置可能となる。さらには、ペンダント等のように首に掛けることも可能となる。こうして使用時の利便性は高まる。 Further, the woven fabric or non-woven fabric package may be housed in a resin case having an appropriate shape. It is difficult to maintain the shape of the package as it is. Therefore, the package can be installed indoors, in a washroom, in a restroom, etc. via the case body. Furthermore, it can be hung around the neck like a pendant. In this way, convenience at the time of use is enhanced.
なお、二酸化塩素発生体は、アルミニウム層を有した樹脂製のラミネートフィルムにより包装される。二酸化塩素発生体内の二酸化塩素発生剤が，保管、陳列、販売時において空気中の水分（湿気）と触れて二酸化塩素を発生させないようにするためである。 The chlorine dioxide generator is packaged with a resin-made laminated film having an aluminum layer. Chlorine dioxide generator This is to prevent the chlorine dioxide generator in the body from coming into contact with moisture (humidity) in the air during storage, display, and sale to generate chlorine dioxide.
一般に亜塩素酸ナトリウム等から二酸化塩素を発生させるためには、酸との反応が必要である。しかしながら、実施形態の二酸化塩素発生剤には酸の成分は配合されていない。実施形態の二酸化塩素発生剤における二酸化塩素発生の仕組みは次のとおりと考えられる。 Generally, in order to generate chlorine dioxide from sodium chlorite or the like, a reaction with an acid is required. However, the chlorine dioxide generator of the embodiment does not contain an acid component. The mechanism of chlorine dioxide generation in the chlorine dioxide generator of the embodiment is considered to be as follows.
空気中には水分（湿度）と二酸化炭素が存在する。そこで、空気中の水分と二酸化炭素により、微量ながら炭酸が生成する。
２ＣＯ２＋２Ｈ２Ｏ → ２Ｈ２ＣＯ３
Moisture (humidity) and carbon dioxide are present in the air. Therefore, a small amount of carbonic acid is generated by the moisture and carbon dioxide in the air.
2CO 2 + 2H 2 O → 2H 2 CO 3
この炭酸が亜塩素酸アルカリ金属塩（亜塩素酸ナトリウムを例示）と反応する。
５ＮａＣｌＯ２＋２Ｈ２ＣＯ３
→ ４ＣｌＯ２↑＋ＮａＣｌ＋２Ｎａ２ＣＯ３＋２Ｈ２Ｏ
This carbonic acid reacts with an alkali metal chlorate salt (for example, sodium chlorite).
5 NaClO 2 + 2H 2 CO 3
→ 4ClO 2 ↑ + NaCl + 2Na 2 CO 3 + 2H 2 O
当該反応から理解されるように、二酸化塩素を発生させるための酸成分は空気中の水分と二酸化炭素に依存させている。酸の供給は極めて微量であるため、亜塩素酸アルカリ金属塩（亜塩素酸ナトリウム）の反応はゆっくりと進行する。そのため、二酸化塩素の発生は、僅かずつとなり長期間にわたる。従って、放出される二酸化塩素の量は多すぎることが無いため、人体への影響は軽微である。その一方で、細菌、ウイルス等は常時放出され続けている二酸化塩素に曝露されるため、抗菌、抗ウイルスの効果が発揮される。 As can be seen from the reaction, the acid component for generating chlorine dioxide depends on the moisture and carbon dioxide in the air. Since the acid supply is extremely small, the reaction of the alkali metal chlorite (sodium chlorite) proceeds slowly. Therefore, the generation of chlorine dioxide is small and takes a long time. Therefore, the amount of chlorine dioxide released is not too large, and the effect on the human body is minor. On the other hand, bacteria, viruses, etc. are exposed to chlorine dioxide, which is constantly released, so that antibacterial and antiviral effects are exhibited.
特に、二酸化塩素発生剤は、酸成分を保持せず外環境に依存する構成であるため、二酸化塩素発生剤自体の全体構成は簡略化可能であり、製造原価は少なくなる。そのため、広範に用いる用途に好適である。 In particular, since the chlorine dioxide generating agent does not retain the acid component and depends on the external environment, the overall composition of the chlorine dioxide generating agent itself can be simplified and the manufacturing cost is reduced. Therefore, it is suitable for a wide range of applications.
続いて、二酸化塩素発生剤の製造方法について説明する。はじめに、亜塩素酸アルカリ金属塩とアルカリ金属水酸化物を含有（水溶）した水溶液（アルカリ水溶液）が調製される（「溶液調製工程」）。アルカリ水溶液は、多孔質材への亜塩素酸アルカリ金属塩の担持させやすさから採用される。一緒に添加されるアルカリ金属水酸化物は、最終的に亜塩素酸アルカリ金属塩をアルカリ性側に維持する目的である。調製後のアルカリ水溶液のｐＨは９ないし１２の範囲である。 Subsequently, a method for producing a chlorine dioxide generating agent will be described. First, an aqueous solution (alkaline aqueous solution) containing (water-soluble) a chlorite alkali metal salt and an alkali metal hydroxide is prepared (“solution preparation step”). The alkaline aqueous solution is adopted because it is easy to support the chlorous acid alkali metal salt on the porous material. The alkali metal hydroxide added together is intended to ultimately maintain the alkali metal chlorite salt on the alkaline side. The pH of the alkaline aqueous solution after preparation is in the range of 9 to 12.
アルカリ水溶液の代わりに、亜塩素酸アルカリ金属塩を溶解した溶解液として、緩衝液を使用することができる。具体的には、アルカリ金属水酸化物、アルカリ金属炭酸塩、及びアルカリ金属炭酸水素塩を含有するアルカリ緩衝液が調製され、ここに亜塩素酸アルカリ金属塩が溶解される。アルカリ金属水酸化物は水酸化ナトリウム、水酸化カリウムである。アルカリ金属炭酸塩は炭酸ナトリウム、炭酸カリウムである。アルカリ金属炭酸水素塩は炭酸水素ナトリウム、炭酸水素カリウムである。 Instead of the alkaline aqueous solution, a buffer solution can be used as a solution in which an alkali metal chlorite is dissolved. Specifically, an alkali buffer solution containing an alkali metal hydroxide, an alkali metal carbonate, and an alkali metal hydrogen carbonate is prepared, and the alkali metal chlorite is dissolved therein. Alkali metal hydroxides are sodium hydroxide and potassium hydroxide. Alkali metal carbonates are sodium carbonate and potassium carbonate. Alkali metal bicarbonates are sodium hydrogen carbonate and potassium hydrogen carbonate.
アルカリ緩衝液は、ｐＨ１０ないし１２である。アルカリ緩衝液が用いられるため、亜塩素酸アルカリ金属塩（亜塩素酸ナトリウム）の安定性がより高まり、出来上がる二酸化塩素発生剤の流通時の保存に都合よい。 The alkaline buffer has a pH of 10 to 12. Since an alkaline buffer is used, the stability of the alkali metal chlorite salt (sodium chlorite) is further enhanced, which is convenient for storage of the resulting chlorine dioxide generator during distribution.
多孔質材は所定時間煮沸されて煮沸多孔質材となる（「煮沸工程」）。煮沸は多孔質材の表面及び細孔内の洗浄目的のためである。例えば、多孔質材に付着した油分等の除去に効果的である。 The porous material is boiled for a predetermined time to become a boiling porous material (“boiling step”). Boil is for cleaning the surface and pores of the porous material. For example, it is effective in removing oil and the like adhering to the porous material.
アルカリ水溶液中または亜塩素酸アルカリ金属塩を溶解した溶解液（亜塩素酸アルカリ金属塩を溶解したアルカリ緩衝液、以下「溶解液」という。）に煮沸多孔質材を浸漬して含浸多孔質材が得られる（「含浸工程」）。アルカリ水溶液または溶解液の含浸効率を高めるため、含浸は大気圧よりも減圧環境下において行われる。特に、多孔質材は多くの細孔を有しており、内部には空気が含まれている。そのため、単にアルカリ水溶液または溶解液中に浸漬しても表面張力により多孔質材の細孔内までアルカリ水溶液または溶解液は浸透しにくい。このことから、細孔内の空気を抜くためにも減圧することが望ましい。 Impregnated porous material by immersing a boiling porous material in an alkaline aqueous solution or in a solution in which an alkali metal chlorite is dissolved (an alkaline buffer in which an alkali metal chlorite is dissolved, hereinafter referred to as "dissolution"). Is obtained (“impregnation step”). In order to increase the impregnation efficiency of the alkaline aqueous solution or the solution, the impregnation is performed in a reduced pressure environment rather than the atmospheric pressure. In particular, the porous material has many pores and contains air inside. Therefore, even if it is simply immersed in an alkaline aqueous solution or a solution, the alkaline aqueous solution or the solution does not easily penetrate into the pores of the porous material due to surface tension. For this reason, it is desirable to reduce the pressure in order to remove the air in the pores.
その後、含浸多孔質材は乾燥されて二酸化塩素発生剤が生じる（「乾燥工程」）。浸漬中の煮沸多孔質材はアルカリ水溶液中または溶解液中から引き上げられ、水切りされる。乾燥は、室内における自然乾燥、温風による加熱乾燥、減圧乾燥の適宜である。なお、亜塩素酸アルカリ金属塩の反応性を考慮して、熱風による乾燥は避けられる。 The impregnated porous material is then dried to produce a chlorine dioxide generator (“drying step”). The boiling porous material during immersion is pulled up from the alkaline aqueous solution or the solution and drained. The drying is appropriate, such as natural drying in a room, heat drying with warm air, and vacuum drying. In consideration of the reactivity of the alkali metal chlorite, drying with hot air can be avoided.
一連の工程を経て出来上がった二酸化塩素発生剤は、好ましくは、通気性を有する包装体内に収容される。二酸化塩素発生剤からの放出される二酸化塩素は、最初は高濃度であり、徐々に放出量は低下する。いちおう、二酸化塩素発生剤からは２箇月間以上の二酸化塩素の放出が想定される。 The chlorine dioxide generator produced through a series of steps is preferably contained in a breathable package. The chlorine dioxide released from the chlorine dioxide generator is initially high in concentration, and the amount released gradually decreases. Ichiou, chlorine dioxide generators are expected to release chlorine dioxide for more than two months.
本発明の二酸化塩素発生剤は、二酸化塩素の発生源を備えた粒状物であるため利便性が高く、ヒトの生活空間の除菌、抗ウイルスの用途として期待される。 The chlorine dioxide generator of the present invention is highly convenient because it is a granular material having a source of chlorine dioxide, and is expected to be used for sterilization of human living space and antiviral use.
Claims (6)
前記二酸化塩素発生剤における前記亜塩素酸アルカリ金属塩は５ないし１０重量％であり、前記多孔質材は９０ないし９５重量％である
ことを特徴とする二酸化塩素発生剤。 A chlorine dioxide generator in which an alkali metal chlorite is supported on a porous material.
A chlorine dioxide generating agent, wherein the chlorine dioxide alkali metal salt is 5 to 10% by weight, and the porous material is 90 to 95% by weight.
多孔質材を煮沸して煮沸多孔質材を得る煮沸工程と、
前記アルカリ水溶液中に前記煮沸多孔質材を浸漬して含浸多孔質材を得る含浸工程と、
前記含浸多孔質材を乾燥して二酸化塩素発生剤を得る乾燥工程と、
を備えることを特徴とする二酸化塩素発生剤の製造方法。 A solution preparation step for preparing an alkaline aqueous solution containing an alkali metal chlorite salt and an alkali metal hydroxide,
The boiling process of boiling the porous material to obtain the boiling porous material, and
An impregnation step of immersing the boiling porous material in the alkaline aqueous solution to obtain an impregnated porous material, and
A drying step of drying the impregnated porous material to obtain a chlorine dioxide generator, and
A method for producing a chlorine dioxide generating agent, which comprises.
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| CN114557364A (en) * | 2022-02-21 | 2022-05-31 | 广西环保产业发展研究院有限公司 | Chlorine dioxide slow-release air freshener |
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