JPH05154376A - Air cleaning agent and production thereof - Google Patents
Air cleaning agent and production thereofInfo
- Publication number
- JPH05154376A JPH05154376A JP3348274A JP34827491A JPH05154376A JP H05154376 A JPH05154376 A JP H05154376A JP 3348274 A JP3348274 A JP 3348274A JP 34827491 A JP34827491 A JP 34827491A JP H05154376 A JPH05154376 A JP H05154376A
- Authority
- JP
- Japan
- Prior art keywords
- iodate
- air purifying
- purifying agent
- potassium permanganate
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、空気浄化剤とその製造
方法に関する。詳しくは、著しく低濃度で汚染された環
境汚染空気をも効果的に浄化することができる高性能な
空気浄化剤およびその製造方法に関する。TECHNICAL FIELD The present invention relates to an air purifying agent and a method for producing the same. More specifically, the present invention relates to a high-performance air purifying agent capable of effectively purifying environmentally contaminated air contaminated at a remarkably low concentration, and a method for producing the same.
【０００２】[0002]
【従来の技術】地球環境の浄化が大きな問題となってい
る現状において、とくに大気汚染の抑制・防止は緊急課
題となっており、各種産業の作業環境や生活環境を含む
あらゆる環境下で低濃度汚染に対する空気浄化が強く要
求されている。2. Description of the Related Art In the present situation where purification of the global environment has become a major issue, suppression and prevention of air pollution has become an urgent issue, and low concentrations are present in all environments including work environments and living environments of various industries. There is a strong demand for air purification against pollution.
【０００３】従来、空気を浄化する手段としては乾式法
と湿式法が知られているが、簡便性の面から活性炭を用
いた乾式浄化法が古くから実用されている。また、汚染
ガスの種類に応じて選択的な吸着能を発揮する空気浄化
剤も各種開発されており、例えば酸性ガスや塩基性ガス
の除去に対しては多孔質担体に塩基もしくは酸の薬剤を
担持させたものが有効とされている。とくに酸化剤また
は還元剤を担体に担持させた空気浄化剤は、汚染ガスを
強力な酸化・還元力によって分解させる浄化能を有する
ため、産業界において広く使用されている。Conventionally, a dry method and a wet method have been known as means for purifying air, but the dry purification method using activated carbon has been in practical use for a long time from the viewpoint of simplicity. In addition, various air purifiers have been developed that exhibit selective adsorption ability according to the type of pollutant gas. For example, for the removal of acidic gas or basic gas, a base or acid agent is added to the porous carrier. What is carried is considered to be effective. In particular, an air purifying agent in which an oxidant or a reducing agent is carried on a carrier has a purifying ability to decompose a pollutant gas by a strong oxidizing / reducing power, and is therefore widely used in industry.
【０００４】この種の空気浄化剤には、活性アルミナや
ゼオライト等の担体に過マンガン酸カリウムを担持させ
たもの（特開昭60−827 号公報、特開平１−157175号公
報など) 、活性炭に沃素酸塩および／または無機酸を担
持されたもの（特開昭61−68136 号公報、特開昭62−16
1372号公報、特開昭62−161373号公報) などがある。As this type of air purifying agent, potassium permanganate supported on a carrier such as activated alumina or zeolite (Japanese Patent Laid-Open No. 60-827, Japanese Patent Laid-Open No. 1-157175, etc.), activated carbon Carrying an iodate and / or an inorganic acid (JP-A-61-68136 and JP-A-62-16)
1372 and JP-A-62-161373).
【０００５】これらの空気浄化剤は使用目的に応じて実
用化されているが、それぞれ一長一短があるうえ、固有
の物性があるために用途が限定される等の問題点があ
る。例えば、過マンガン酸カリウム系の空気浄化剤は可
溶性の強力な酸化剤であるためその取扱いには充分注意
する必要があることから、危険性が高く、家庭環境を対
象にするような一般民生用の分野では使用することがで
いない。活性炭は使用時の安全性は高いが、除去機構が
物理吸着を主体とする関係で汚染ガスの除去率は自ずか
ら抑制されるのみならず、飽和した場合には吸着作用は
なくなって寧ろ脱着現象さえ生じるようになる。したが
って、多くの場合、薬剤を担持させた状態で使用に供さ
れるが、低濃度の汚染ガスに対する除去能や使用寿命は
余り期待できない。These air purifiers have been put into practical use depending on the purpose of use, but each has its advantages and disadvantages, and there are problems in that its use is limited due to its inherent physical properties. For example, potassium permanganate-based air purifiers are highly soluble, strong oxidizers and must be handled with care. Therefore, they are highly dangerous and are intended for general household use. It cannot be used in the field. Activated carbon has high safety during use, but because the removal mechanism is mainly physical adsorption, the removal rate of pollutant gas is not only suppressed naturally, but when saturated, the adsorption action disappears and even desorption phenomenon occurs. Will occur. Therefore, in many cases, it is used in a state that the drug is carried, but the ability to remove pollutant gas of low concentration and the service life cannot be expected very much.
【０００６】[0006]
【発明が解決しようとする課題】近時、半導体をはじめ
とする精密エレクトロニクスの製造分野での製品精度や
歩留りの向上、あるいは絵画のような高級美術品の褪変
色を防止して恒久保存を可能にする等の目的から、極低
濃度の汚染ガスを完全かつ安全に除去しえる空気浄化剤
の開発が強く要請されている。Recently, it is possible to improve product accuracy and yield in the field of manufacturing precision electronics such as semiconductors, or prevent permanent discoloration of high-quality art objects such as paintings. For the purpose of, for example, the development of an air purifying agent capable of completely and safely removing extremely low-concentration polluted gas, there is a strong demand.
【０００７】本発明は、かかる要請に鑑みて鋭意研究を
重ねた結果開発されたもので、その目的は安全で使用寿
命が長く、かつ低濃度の汚染ガスに対して十分な除去能
力を有する空気浄化剤と該空気浄化剤を工業的に得るた
めの製造方法を提供することにある。The present invention was developed as a result of intensive studies in view of the above demands, and its purpose is to provide an air that is safe, has a long service life, and has sufficient removal capability for pollutant gas of low concentration. It is intended to provide a purifying agent and a manufacturing method for industrially obtaining the air purifying agent.
【０００８】[0008]
【課題を解決するための手段】上記の目的を達成するた
めの本発明による空気浄化剤は、炭素材担体に活性二酸
化マンガンおよび沃素酸塩を担持させてなることを構成
上の特徴とするものである。The air purifying agent according to the present invention for attaining the above object is characterized in that the carbon material carrier is loaded with active manganese dioxide and iodate. Is.
【０００９】本発明に使用される炭素材担体としては、
活性炭、黒鉛、カーボンブラック等を挙げることができ
るが、とくに活性炭を適用することが好ましい。活性炭
の種類や製造履歴は問われず、例えば木材、椰子殻、お
が屑、石炭、亞炭、褐炭、竹炭等あるいはこれらを賦活
処理したものを用いることができる。また、形状は任意
であり、粉状、顆粒状、繊維状、ハニカム状などを使用
目的の応じて適宜に選定すればよい。The carbon material carrier used in the present invention includes
Activated carbon, graphite, carbon black and the like can be mentioned, but it is particularly preferable to apply activated carbon. The type and production history of activated carbon are not limited, and for example, wood, coconut shell, sawdust, coal, briquette, brown coal, bamboo charcoal, etc., or those obtained by activation treatment can be used. The shape is arbitrary, and powdery, granular, fibrous, honeycomb, or the like may be appropriately selected according to the purpose of use.
【００１０】上記の炭素材担体に担持させる活性二酸化
マンガンとしては、過マンガン酸カリウムの還元分解生
成物または水酸化マンガンの酸化分解生成物のいずれか
が用いられるが、性能および製造上の面から過マンガン
酸カリウムの分解生成物を使用することが好ましい。な
お、活性二酸化マンガンには、必要に応じて銅、バナジ
ウム、銀、パラジウム、白金などの金属または金属化合
物の微粒子を少量範囲で含有させたものでもよい。As the active manganese dioxide supported on the carbon material carrier, either a reductive decomposition product of potassium permanganate or an oxidative decomposition product of manganese hydroxide is used. Preference is given to using the decomposition products of potassium permanganate. The activated manganese dioxide may contain fine particles of a metal or a metal compound such as copper, vanadium, silver, palladium and platinum in a small amount if necessary.
【００１１】炭素材担体に担持させる他方の薬剤である
沃素酸塩は、沃素酸カリウムが好適であるが、その他の
沃素酸ナトリウム、沃素酸リチウムなどのアルカリ金属
塩や沃素酸カルシウム、沃素酸マグネシウム、沃素酸バ
リウムなどのアルカリ土類金属塩を用いることもでき
る。As the iodate, which is the other agent supported on the carbon material carrier, potassium iodate is preferable, but other alkali metal salts such as sodium iodate and lithium iodate, calcium iodate and magnesium iodate. Alternatively, an alkaline earth metal salt such as barium iodate can be used.
【００１２】炭素材担体に対する活性二酸化マンガンお
よび沃素酸塩の担持量は、炭素浄化材の用途や汚染ガス
の性質によって任意に設定すべきであるが、多くの場
合、これら薬剤の合計量として全重量当たり 0.1〜20wt
％、望ましくは 0.3〜10wt％の範囲である。また、活性
二酸化マンガン（ＭｎＯ2 換算）と沃素酸塩との割合は
重量比で１： 0.1〜９、好ましくは１： 0.5〜５の範囲
である。The amount of active manganese dioxide and iodate supported on the carbon material carrier should be arbitrarily set depending on the use of the carbon purification material and the nature of the polluting gas, but in many cases, the total amount of these chemicals is the total amount. 0.1 ~ 20wt per weight
%, Preferably 0.3 to 10 wt%. The weight ratio of active manganese dioxide (converted to MnO 2 ) and iodate is 1: 0.1 to 9, preferably 1: 0.5 to 5.
【００１３】更に本発明の空気浄化剤は、貯蔵、輸送ま
たはハンドリングの過程で固結や変質しない限り平衡水
分以上の水分を含有させることができ、、寧ろ５〜15wt
％程度の水分を含有させることが好適である。なお、こ
の場合の水分とは、空気浄化剤を 100℃で１時間乾燥さ
せた際の全減量成分を指し、その量は空気浄化剤に対す
る割合をいう。Further, the air purifying agent of the present invention can contain a water content equal to or more than the equilibrium water content as long as it does not congeal or deteriorate during storage, transportation or handling.
It is suitable to contain about% water. In addition, the water content in this case refers to a total weight loss component when the air purifying agent is dried at 100 ° C. for 1 hour, and the amount thereof is a ratio to the air purifying agent.
【００１４】本発明に係る空気浄化剤は、担体の形状に
応じて種々の形態に形成することができるが、ハニカム
体以外の形状にあっては、四塩化炭素置換法による空孔
容積として 0.5〜1.0ml/g 、好ましくは 0.6〜0.9ml/g
の範囲のものが良好な空気浄化能を発揮する。The air purifying agent according to the present invention can be formed into various shapes depending on the shape of the carrier. However, in the shape other than the honeycomb body, the pore volume by the carbon tetrachloride substitution method is 0.5. ~ 1.0 ml / g, preferably 0.6-0.9 ml / g
Those in the range of (3) exhibit good air purification performance.
【００１５】上記の空気浄化剤を得るための本発明によ
る製造方法は、炭素材担体に過マンガン酸カリウムと沃
素酸塩との混合水溶液を吸着担持させることを構成上の
特徴とする。The manufacturing method according to the present invention for obtaining the above-mentioned air purifying agent is characterized in that the carbon material carrier is caused to adsorb and carry the mixed aqueous solution of potassium permanganate and iodate.
【００１６】過マンガン酸カリウムと沃素酸塩の混合水
溶液は、実質的な酸化還元反応を生じることなしに安定
に存在するが、炭素材担体と混合すると過マンガン酸カ
リウムのみが速やかに還元反応を起こして活性二酸化マ
ンガンに転化する。かかる転化現象は、炭素材担体と薬
剤混合液を接触させたのちにＭｎＯ4 - の赤紫色の呈色
反応が実質的に認められないことからも証明することが
できる。A mixed aqueous solution of potassium permanganate and an iodate salt is stable without causing a substantial redox reaction, but when mixed with a carbonaceous material carrier, only potassium permanganate immediately undergoes a reduction reaction. Causes conversion to active manganese dioxide. This conversion phenomenon can also be proved from the fact that the reddish purple color reaction of MnO 4 − is not substantially observed after the carbon material carrier and the drug mixture are brought into contact with each other.
【００１７】他方、沃素酸塩は活性二酸化マンガンの不
溶性酸化剤によって、単独の場合よりも一層安定に存在
させることができ、この作用により得られる空気浄化剤
を安定化させるとともに、汚染ガスの除去能を長期的に
優れたものにする。On the other hand, the iodate can be made to exist more stably by the insoluble oxidizing agent of active manganese dioxide than in the case of using it alone, and the air purifying agent obtained by this action is stabilized and the pollutant gas is removed. Make the Noh superior in the long run.
【００１８】炭素剤担体に薬剤の混合液を吸着担持させ
るプロセスは、薬剤が均一に担持できる方法であれば特
に限定はないが、適宜なミキサーによる直接混合や噴霧
混合などでおこなうことが実用的である。例えば、炭素
材担体をミキサー中で混合しながら薬剤混合液を噴霧さ
せることにより均一に担持させることができる。この場
合、混合液の濃度や混合比率は空気浄化剤に対する薬剤
の担持量あるいは水分量の範囲で設定すればよい。した
がって、空気浄化剤における水分量の範囲で薬剤混合液
を調製すれば、炭素材担体と薬剤との混合処理後に特別
な後処理を施すことなく、そのまま製品として供するこ
とができる。また、過剰の水を用いた場合あるいは高い
成形強度を得たいときには、必要に応じて乾燥処理をお
こなうこともできる。なお、炭素材担体に薬剤を担持さ
せる際には、必要に応じて酸、アルカリもしくは適宜な
結合材などの補助成分を併用しても差し支えない。The process of adsorbing and supporting the mixed solution of the drug on the carbon agent carrier is not particularly limited as long as the drug can be uniformly supported, but it is practical to carry out by direct mixing or spray mixing with an appropriate mixer. Is. For example, the carbon material carrier can be uniformly loaded by spraying the drug mixture while mixing in a mixer. In this case, the concentration and mixing ratio of the mixed liquid may be set within the range of the amount of the drug carried on the air purifying agent or the amount of water. Therefore, if the chemical mixture liquid is prepared within the range of the amount of water in the air purifying agent, it can be directly used as a product without any special post-treatment after the mixing treatment of the carbon material carrier and the chemical. Further, if an excessive amount of water is used or if high molding strength is desired, a drying treatment can be carried out if necessary. It should be noted that, when supporting the drug on the carbon material carrier, an auxiliary component such as an acid, an alkali or an appropriate binder may be used in combination, if necessary.
【００１９】本発明に係る空気浄化剤は、多様な有害ガ
スの単独または複合的な汚染ガスを効果的に除去するこ
とができる。例えば、硫化水素、ホスフィン、アルシ
ン、ゲルマン、シランなどの水素化ガス、オゾン、Ｃ
Ｏ、ＮＯx 、ＳＯx 、アミン類、メルカプタン類、硫化
カルボニル、アルデヒド類、フェノール類、エチレンな
どの不飽和炭化水素類、あるいはこれら成分により複合
汚染された下水臭、動物臭、屎尿臭などの悪臭が効率的
に除去される。また、本発明の空気浄化剤は強酸化力に
よる殺菌性もあり、とりわけこれに銅または銀などを担
持させたものは一層高い抗菌作用を有することから空気
中の各種細菌、黴、ウイルスなどの有害微生物も併せて
除去することが可能となる。The air purification agent according to the present invention can effectively remove pollutant gases of various harmful gases, either alone or in combination. For example, hydrogen sulfide, phosphine, arsine, germane, hydrogenated gas such as silane, ozone, C
O, NO x , SO x , amines, mercaptans, carbonyl sulfides, aldehydes, phenols, unsaturated hydrocarbons such as ethylene, or sewage odor, animal odor, manure odor, etc. The malodor is efficiently removed. Further, the air purifying agent of the present invention also has a bactericidal property due to strong oxidative power, and in particular, those having copper or silver carried thereon have a higher antibacterial action, so that various bacteria in the air, fungi, viruses, etc. It is possible to remove harmful microorganisms as well.
【００２０】[0020]
【作用】本発明に係る空気浄化剤は、上記したように炭
素材担体に不溶性の活性二酸化マンガンと可溶性の沃素
酸塩を有効成分として担持して構成されているから、炭
材自体が有するガス吸着能と還元力および二つの異なる
強力な酸化力とが相互に作用し合って有害汚染ガスを効
率よく分解あるいは吸着する。この機能を介して強力な
除去能が長期に亘り効果的に維持される。また、有害ガ
スに対する除去スペクトル汚染濃度はの幅は極めて広
く、使用時の安全性は高い。The air purifying agent according to the present invention is composed of the carbonaceous material carrier carrying insoluble active manganese dioxide and soluble iodate as active ingredients as described above. The adsorption capacity, the reducing power and two different strong oxidizing powers interact with each other to decompose or adsorb the harmful pollutant gas efficiently. Through this function, strong removal ability is effectively maintained for a long period of time. Moreover, the range of the concentration of the removed spectrum pollution to the harmful gas is extremely wide, and the safety in use is high.
【００２１】[0021]
【実施例】以下、本発明について具体的に説明するため
に実施例および比較例をあげて説明する。EXAMPLES Hereinafter, examples and comparative examples will be described in order to specifically describe the present invention.
【００２２】実施例１〜４、比較例１〜３ 水 100重量部に過マンガン酸カリウムと沃素酸カリウム
の所定量を溶解した混合薬液をナウターミキサーで流動
している粒径３〜５mmの顆粒状ヤシガラ活性炭に噴霧し
て担持させ、試料Ｂ〜Ｅの空気浄化剤を調製した（実施
例１〜４）。また、過マンガン酸カリウムおよび沃素酸
カリウムのいずれか又は両方を担持させない試料Ａ、
Ｆ、Ｇの空気浄化剤を作製した（比較例１〜３）。Examples 1 to 4 and Comparative Examples 1 to 3 A mixed chemical solution prepared by dissolving a predetermined amount of potassium permanganate and potassium iodate in 100 parts by weight of water is flowed by a Nauta mixer and has a particle size of 3 to 5 mm. The air purifying agents of Samples B to E were prepared by spraying and supporting the granular coconut husk activated carbon (Examples 1 to 4). In addition, Sample A which does not carry either or both of potassium permanganate and potassium iodate
Air purification agents of F and G were produced (Comparative Examples 1 to 3).
【００２３】これら各空気浄化剤のうち、試料Ａ〜Ｅを
水に浸漬させたところ、ＭｎＯ4 - の赤紫色の呈色は実
質的に認められず、活性な不溶性の二酸化マンガンに転
化して担持されていることが判明した。[0023] Of these the air purification agent, was a sample A~E is immersed in water, MnO 4 - coloration red purple is not substantially observed, and converted to an active insoluble manganese dioxide It was found to be supported.
【００２４】得られた試料Ａ〜Ｇの各空気浄化剤をパイ
レックス管のカラム（内径25mm、長さ350mm)に充填し、
次の条件で硫化水素の除去能の評価を行った。 入口ガス濃度：約10ppm Ｈ2 Ｓ 入口ガス温度、湿度：22〜25℃、55〜65％ＲＨ ガス流量、管内流速：10.3 l/min、0.35m/sec 空間速度（ＳＶ）：20000 (1/H) 測定法：ガステック検知管法（検知限度 0.1ppm Ｈ
2 Ｓ) その結果を空気浄化剤の成分組成および空孔容積と対比
させて表１に示した。Each of the obtained air purifying agents of Samples A to G was packed in a column of Pyrex tube (inner diameter 25 mm, length 350 mm),
The removal ability of hydrogen sulfide was evaluated under the following conditions. Inlet gas concentration: Approx. 10 ppm H 2 S Inlet gas temperature, humidity: 22 to 25 ° C, 55 to 65% RH gas flow rate, pipe flow velocity: 10.3 l / min, 0.35 m / sec Space velocity (SV): 20000 (1 / H) Measuring method: Gastech detector tube method (detection limit 0.1ppm H
2 S) The results are shown in Table 1 in comparison with the composition and pore volume of the air purifying agent.
【００２５】[0025]
【表１】 [Table 1]
【００２６】実施例５〜６、比較例４ 活性アルミナ60重量部、ベントナイト10重量部、セピオ
ライト10重量部、過マンガン酸カリウム５重量部、消石
灰10重量部およびシリカゾル（ＳｉＯ2 ：30wt％）21重
量部を適量の水と混練し、造粒したのち乾燥して試料Ｈ
の過マンガン酸カリウム系空気浄化剤（一粒強度３kg／
粒、空孔容積 0.52ml/g)を調製した（比較例４）。Examples 5 to 6, Comparative Example 4 60 parts by weight of activated alumina, 10 parts by weight of bentonite, 10 parts by weight of sepiolite, 5 parts by weight of potassium permanganate, 10 parts by weight of slaked lime and silica sol (SiO 2 : 30 wt%) 21 Part by weight is kneaded with an appropriate amount of water, granulated and then dried to give Sample H.
Potassium permanganate-based air purifying agent (1 grain strength 3kg /
Granules, pore volume 0.52 ml / g) were prepared (Comparative Example 4).
【００２７】上記の試料Ｈと実施例１の試料Ｂおよび実
施例３の試料Ｄを用い、下記の条件で希Ｈ2 Ｓガスの長
期除去試験（ 240〜10000hr)をおこなったところ、表
２、表３の結果が得られた。 入口ガス濃度：約500 ppb Ｈ2 Ｓ 入口ガス温度：22〜25℃ 入口ガス湿度：60〜70％ＲＨ 空間速度（ＳＶ）：5000(1/H) 測定法：ガスクロマトグラフ法Using the sample H, the sample B of Example 1, and the sample D of Example 3, a long-term removal test (240 to 10,000 hr) of dilute H 2 S gas was conducted under the following conditions. The results shown in Table 3 were obtained. Inlet gas concentration: Approx. 500 ppb H 2 S Inlet gas temperature: 22-25 ° C Inlet gas humidity: 60-70% RH Space velocity (SV): 5000 (1 / H) Measuring method: Gas chromatographic method
【００２８】[0028]
【表２】 [Table 2]
【００２９】[0029]
【表３】 [Table 3]
【００３０】実施例７、比較例５ 実施例３の試料Ｄおよび比較例４の試料Ｈを用い，下記
の条件にてＳＯ2 ガス除去試験を行ったところ、表４の
結果が得られた。 入口ガス濃度：約 200〜300 ppb ＳＯ2 入口ガス温度：22〜25℃ 入口ガス湿度：55〜65％ＲＨ ガス風速：20 l/min 空間速度（ＳＶ）：50000 (1/H) カラム：内径25mm、長さ 350mm（パイレックス管） 測定法：ガスクロマトグラフ法Example 7, Comparative Example 5 Using the sample D of Example 3 and the sample H of Comparative Example 4, a SO 2 gas removal test was conducted under the following conditions, and the results shown in Table 4 were obtained. Inlet gas concentration: Approx. 200 to 300 ppb SO 2 Inlet gas temperature: 22 to 25 ° C Inlet gas humidity: 55 to 65% RH Gas wind speed: 20 l / min Space velocity (SV): 50000 (1 / H) Column: Inner diameter 25mm, length 350mm (Pyrex tube) Measuring method: Gas chromatographic method
【００３１】[0031]
【表４】 [Table 4]
【００３２】実施例８、比較例６ 実施例３の試料Ｄおよび比較例４の試料Ｈを用い、下記
の条件により硫化水素−トルエン混合ガスの除去能を試
験したところ、表５、表６の結果が得られた。なお、表
中、ＮＤが検出されなかったことを示す。 入口ガス濃度：約20ppm Ｈ2 Ｓ＋約50ppm トルエン混合
ガス 入口ガス温度：23〜25℃ 入口ガス湿度：60〜70％ＲＨ ガス流速：10 l/min 空間速度（ＳＶ）：50000(1/H) カラム：内径25mm、長さ 350mm 測定法：ガステック検知管法（4LL) (122) トルエンは、標準ガス発生装置（パーミエータ）を使用Example 8 and Comparative Example 6 Using the sample D of Example 3 and the sample H of Comparative example 4, the ability to remove a hydrogen sulfide-toluene mixed gas was tested under the following conditions. Results were obtained. In the table, ND was not detected. Inlet gas concentration: Approx. 20 ppm H 2 S + Approx. 50 ppm Toluene mixed gas Inlet gas temperature: 23 to 25 ° C Inlet gas humidity: 60 to 70% RH Gas flow rate: 10 l / min Space velocity (SV): 50000 (1 / H) Column: inner diameter 25 mm, length 350 mm Measurement method: Gastech detector tube method (4LL) (122) Toluene uses a standard gas generator (permeator)
【００３３】[0033]
【表５】 [Table 5]
【００３４】[0034]
【表６】 [Table 6]
【００３５】実施例９、比較例７ 実施例３の試料Ｄおよび比較例４の試料Ｈを用い、下記
の条件で下水処理場の消化汚泥臭（臭気濃度）の除去試
験を行ったところ、表７の結果が得られた。 入口臭気濃度：約1000 入口ガス温度：20〜27℃ 入口ガス湿度：60〜70％ＲＨ ガス流速：10 l/min 空間速度（ＳＶ）：20000(1/H) カラム：内径25mm、長さ 350mm 測定法：三点比較式臭袋法 臭気濃度10以下は殆ど臭気が感じられない程度Example 9 and Comparative Example 7 Using the sample D of Example 3 and the sample H of Comparative example 4, a digested sludge odor (odor concentration) removal test of a sewage treatment plant was conducted under the following conditions. Results of 7 were obtained. Inlet odor concentration: Approx. 1000 Inlet gas temperature: 20 to 27 ° C Inlet gas humidity: 60 to 70% RH Gas flow rate: 10 l / min Space velocity (SV): 20000 (1 / H) Column: Inner diameter 25 mm, length 350 mm Measurement method: Three-point comparison type odor bag method Odor concentration of 10 or less is almost odorless
【００３６】[0036]
【表７】 [Table 7]
【００３７】実施例10、比較例８〜10 実施例３の試料Ｄ、比較例２の試料Ｆ、比較例４の試料
Ｈおよび試料Ｉ（市販品：マンガンフェライト系空気浄
化剤）を用い、下記の条件でエチルメルカプタン（Ｃ2
Ｈ5 ＳＨ）の除去試験をおこなったところ、表８の結果
が得られた。 入口ガス濃度： 100〜140ppmＣ2 Ｈ5 ＳＨ 入口ガス温度：23〜26℃ 入口ガス湿度：73〜83％ＲＨ 空間速度（ＳＶ）：5000(1/H) ガス通気量：4 l/min 測定法：ガステック検知管 No.72、臭気テストExample 10, Comparative Examples 8 to 10 Using Sample D of Example 3, Sample F of Comparative Example 2, Sample H and Sample I of Comparative Example 4 (commercially available products: manganese ferrite-based air purifying agent), Ethyl mercaptan (C 2
H 5 SH) removal test was performed, and the results shown in Table 8 were obtained. Inlet gas concentration: 100-140ppm C 2 H 5 SH Inlet gas temperature: 23-26 ° C Inlet gas humidity: 73-83% RH Space velocity (SV): 5000 (1 / H) Gas flow rate: 4 l / min Measuring method : Gastech detector tube No.72, odor test
【００３８】[0038]
【表８】 [Table 8]
【００３９】実施例11、比較例11〜14 目開き１mmの活性炭ハニカムをダイヤモンドカッターで
22mm×22mm×９mmの厚さに切り、その1000重量部当たり
過マンガン酸カリウム４重量部および沃素酸カリウム５
重量部を溶解した水溶液に温度45℃にて30分間浸漬した
のち、乾燥して含水量 9.5重量％にした空気浄化剤を得
た（試料Ｊ）。なお、該試料Ｊを水に浸出してもＭｎＯ
4 - の呈色が認められなかったことから、活性二酸化マ
ンガンに転化して担持されていることが判った。Example 11 and Comparative Examples 11 to 14 Activated carbon honeycomb having an opening of 1 mm was cut with a diamond cutter.
Cut to a thickness of 22 mm x 22 mm x 9 mm, and 4 parts by weight of potassium permanganate and 5 parts of potassium iodate per 1000 parts by weight thereof.
After dipping in an aqueous solution in which 1 part by weight was dissolved at a temperature of 45 ° C. for 30 minutes, it was dried to obtain an air purifier having a water content of 9.5% by weight (Sample J). Even if the sample J is leached in water, MnO
4 - since the coloration was observed in was found to be holding and converted into activated manganese dioxide.
【００４０】比較のため目開き１mmの活性アルミナハニ
カムに４重量％の過マンガン酸カリウムを担持させた空
気浄化剤（試料Ｋ）、同一の活性アルミナハニカムに１
重量％の沃素酸カリウムを担持させた空気浄化剤（試料
Ｌ）、ゼオライトハニカムに３重量％の過マンガン酸カ
リウムを担持させた空気浄化剤（試料Ｍ）、および活性
炭ハニカムからなる空気浄化剤（試料Ｎ）を調製した。For comparison, an air purifying agent (Sample K) in which 4% by weight of potassium permanganate was loaded on an activated alumina honeycomb having an opening of 1 mm, and 1 was applied to the same activated alumina honeycomb.
An air purifying agent that supports potassium iodate by weight% (Sample L), an air purifying agent that supports potassium permanganate by 3 weight% in a zeolite honeycomb (Sample M), and an air purifying agent that includes activated carbon honeycomb ( Sample N) was prepared.
【００４１】これらの各空気浄化剤を用い、下記の条件
でＳＯ2 ガスの除去能を試験したところ、表９の結果が
得られた。 入口ガス濃度：585 ppm ＳＯ2 入口ガス温度：室温 入口ガス湿度：50〜60％ＲＨ 空間速度（ＳＶ）：25000(1/H) 測定法：ガステック検知管When each of these air purifying agents was tested for SO 2 gas removal performance under the following conditions, the results shown in Table 9 were obtained. Inlet gas concentration: 585 ppm SO 2 Inlet gas temperature: Room temperature Inlet gas humidity: 50-60% RH Space velocity (SV): 25000 (1 / H) Measuring method: Gastec detector tube
【００４２】[0042]
【表９】 [Table 9]
【００４３】[0043]
【発明の効果】以上のとおり、本発明によれば低濃度の
汚染ガスを長期間に亘り優れた除去能を発揮する空気浄
化剤とこの空気浄化剤を工業的に製造しえる製造方法を
提供することができる。また、本発明の空気浄化剤はＫ
ＭｎＯ4 のような可溶性のＭｎＯ4 - がないため安全性
が高く、産業上から一般民生用に至る広い用途目的に極
めて有用である。Industrial Applicability As described above, according to the present invention, an air purifying agent that exhibits an excellent ability to remove low-concentration pollutant gas over a long period of time and a manufacturing method capable of industrially manufacturing this air purifying agent are provided. can do. The air purifying agent of the present invention is K
Since it does not contain soluble MnO 4 − such as MnO 4 , it is highly safe and extremely useful for a wide range of purposes from industrial to general consumer use.
Claims (4)
沃素酸塩を担持させてなることを特徴とする空気浄化
剤。1. An air purifying agent comprising a carbon material carrier on which active manganese dioxide and an iodate are supported.
ウムの分解生成物であり、沃素酸塩が沃素酸カリウムで
ある請求項１記載の空気浄化剤。2. The air purifying agent according to claim 1, wherein the active manganese dioxide is a decomposition product of potassium permanganate and the iodate is potassium iodate.
請求項１又は２記載の空気浄化剤。3. The air purifier according to claim 1, wherein the pore volume is in the range of 0.5 to 1.0 ml / g.
素酸塩との混合水溶液を吸着担持させることを特徴とす
る空気浄化剤の製造方法。4. A method for producing an air purification agent, which comprises adsorbing and supporting a mixed aqueous solution of potassium permanganate and an iodate on a carbon material carrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03348274A JP3131480B2 (en) | 1991-12-03 | 1991-12-03 | Air purifier and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03348274A JP3131480B2 (en) | 1991-12-03 | 1991-12-03 | Air purifier and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05154376A true JPH05154376A (en) | 1993-06-22 |
| JP3131480B2 JP3131480B2 (en) | 2001-01-31 |
Family
ID=18395935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03348274A Expired - Lifetime JP3131480B2 (en) | 1991-12-03 | 1991-12-03 | Air purifier and method for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3131480B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000049532A (en) * | 2000-04-04 | 2000-08-05 | 신창섭 | Preparing method of impregnated activated carbon and activated carbon fiber with KIO3 for the removal of sulfureous odors as H2S and CH3SH. |
| JP2012213549A (en) * | 2011-04-01 | 2012-11-08 | Kao Corp | Manufacturing method of active carbon impregnated with deodorant |
| CN113019306A (en) * | 2019-12-25 | 2021-06-25 | 广东美的白色家电技术创新中心有限公司 | Adsorbing material and preparation method and application thereof |
-
1991
- 1991-12-03 JP JP03348274A patent/JP3131480B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000049532A (en) * | 2000-04-04 | 2000-08-05 | 신창섭 | Preparing method of impregnated activated carbon and activated carbon fiber with KIO3 for the removal of sulfureous odors as H2S and CH3SH. |
| JP2012213549A (en) * | 2011-04-01 | 2012-11-08 | Kao Corp | Manufacturing method of active carbon impregnated with deodorant |
| CN113019306A (en) * | 2019-12-25 | 2021-06-25 | 广东美的白色家电技术创新中心有限公司 | Adsorbing material and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3131480B2 (en) | 2001-01-31 |
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