JPH11285619A - Air cleaning agent - Google Patents
Air cleaning agentInfo
- Publication number
- JPH11285619A JPH11285619A JP10108622A JP10862298A JPH11285619A JP H11285619 A JPH11285619 A JP H11285619A JP 10108622 A JP10108622 A JP 10108622A JP 10862298 A JP10862298 A JP 10862298A JP H11285619 A JPH11285619 A JP H11285619A
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- Prior art keywords
- urea
- porous carrier
- compd
- compound
- carrier
- Prior art date
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- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は空気浄化剤に関す
る。さらに詳しくは、家庭環境及び作業環境から発生す
る臭気中に含まれるアルデヒド類、とくにホルムアルデ
ヒド、アセトアルデヒドに代表される低級アルデヒドの
吸着除去に有効な空気浄化剤に関する。TECHNICAL FIELD The present invention relates to an air purifying agent. More specifically, the present invention relates to an air purifying agent which is effective for adsorbing and removing aldehydes contained in odors generated from domestic and working environments, particularly lower aldehydes represented by formaldehyde and acetaldehyde.
【０００２】[0002]
【従来の技術】これまで、家庭環境や作業環境に存在す
る臭気の除去を目的とした様々な脱臭剤が開発されてい
る。近年、これら臭気に含まれる成分のうち、とくにホ
ルムアルデヒド、アセトアルデヒドなどの低級アルデヒ
ド類は、家庭環境や作業環境での影響や有害性が指摘さ
れており、低級アルデヒド類に対するより有効な脱臭除
去剤が要望されている。2. Description of the Related Art Various deodorants have been developed for the purpose of removing odors present in home and work environments. In recent years, among the components contained in these odors, particularly lower aldehydes such as formaldehyde and acetaldehyde have been pointed out as having effects and harmfulness in home and work environments. Requested.
【０００３】従来、このような臭気を除去するため、活
性炭、活性白土、シリカゲル、活性アルミナなどの多孔
質吸着剤が多く使用されており、とりわけ活性炭が多く
使用されている。しかしながら、これらの吸着剤は、低
級アルデヒド類の吸着能が低く、様々な環境での脱臭除
去を目的とした場合、相当量の吸着剤を用いる必要があ
った。Hitherto, in order to remove such odors, porous adsorbents such as activated carbon, activated clay, silica gel, and activated alumina have been frequently used, and in particular, activated carbon has been widely used. However, these adsorbents have a low ability to adsorb lower aldehydes, and when deodorizing and removing in various environments, it is necessary to use a considerable amount of adsorbent.
【０００４】一方、多孔質担体に各種有機化合物や無機
化合物を担持させて低級アルデヒド類の吸着能を高めた
種々の吸着剤も開発されており、例えば、活性炭などの
多孔質担体に、アニリン、ヒドラジン類、脂肪族系第１
級アミンもしくは第２級アミン、飽和環状第二アミンな
どの有機化合物を添着した吸着剤が提案されている（例
えば、特公昭６０−５４０９５号公報、特開昭５５―１
５９８３６号公報、特開昭６０―４８１３８号公報、特
開平４―３５８５３６号公報など）。また、活性炭など
の多孔質担体に、酸性アンモニウム塩、亜硫酸塩、金属
酸化物、金属硫酸塩、金属酢酸塩、金属カルボン酸塩等
の無機化合物を担持したもの、さらに触媒として白金化
合物を前述の吸着剤に担持したものも提案されている。On the other hand, various adsorbents have been developed in which various organic compounds and inorganic compounds are supported on a porous carrier to enhance the ability to adsorb lower aldehydes. For example, aniline, aniline, Hydrazines, aliphatic first
Adsorbents impregnated with organic compounds such as secondary amines, secondary amines, and saturated cyclic secondary amines have been proposed (for example, JP-B-60-54095, JP-A-55-1).
59836, JP-A-60-48138, JP-A-4-358536, and the like. Further, on a porous carrier such as activated carbon, an acidic ammonium salt, a sulfite, a metal oxide, a metal sulfate, a metal acetate, a metal carboxylate or the like, and further supported a platinum compound as a catalyst as described above. Those supported on an adsorbent have also been proposed.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、有機化
合物を担持した吸着剤は、添着物の経時安定性があまり
よくなく、また臭気等の健康上の有害性が問題となる。
さらに、こうした吸着剤は単独で使われるだけでなく何
らかの二次加工を施され使用されることが多く、二次加
工時の耐熱性が必要であり、加工面での性能安定性の面
でも満足できるものではなかった。However, an adsorbent supporting an organic compound has a poor stability over time of an adhering substance, and poses a problem of health hazard such as odor.
In addition, these adsorbents are not only used alone, but are often used after being subjected to some kind of secondary processing, which requires heat resistance during secondary processing, and is satisfactory in terms of performance stability on the processing side I couldn't do it.
【０００６】また、無機化合物を担持させたものは一般
に吸着速度が充分ではなく、触媒を担持させたものは常
温使用下での除去性能が低いのが一般的である。このよ
うに、従来提案されている吸着剤は、低級アルデヒド類
の除去に対して必ずしも十分満足なものであるとは言い
難い。したがって、本発明の目的は、低級アルデヒド類
を効率よく除去し、耐熱性、安全性にも優れた空気浄化
剤を提供することにある。[0006] In general, those loaded with an inorganic compound do not have a sufficient adsorption rate, and those loaded with a catalyst generally have low removal performance at room temperature. As described above, the adsorbents conventionally proposed are not necessarily sufficiently satisfactory for removal of lower aldehydes. Therefore, an object of the present invention is to provide an air purifying agent that efficiently removes lower aldehydes and is excellent in heat resistance and safety.
【０００７】[0007]
【課題を解決するための手段】本発明者らは上記目的を
達成するため鋭意検討を重ね、本発明に至った。すなわ
ち、本発明は、分子中に尿素結合を有する尿素化合物を
多孔質担体に添着した空気浄化剤である。Means for Solving the Problems The present inventors have conducted intensive studies in order to achieve the above object, and have reached the present invention. That is, the present invention is an air purifying agent in which a urea compound having a urea bond in a molecule is attached to a porous carrier.
【０００８】本発明で用いられる分子中に尿素結合を有
する尿素化合物は、尿素の水素原子１つ以上をアルキル
基もしくはアシル基にて置換したものを指し、鎖状ある
いは環状のどちらの構造を有していてもかまわない。The urea compound having a urea bond in the molecule used in the present invention refers to a urea compound in which at least one hydrogen atom of urea is substituted with an alkyl group or an acyl group, and has either a chain structure or a cyclic structure. You can do it.
【０００９】このような尿素化合物のうち、鎖状尿素類
とは、尿素結合が直接環状構造を形成していないものを
さし、例えばメチル尿素、エチル尿素、ジメチル尿素、
ジエチル尿素、テトラメチル尿素、アセチル尿素、アセ
チルメチル尿素、フェニル尿素、ジフェニル尿素等をあ
げることができる。Among such urea compounds, chain ureas are compounds in which urea bonds do not directly form a cyclic structure, such as methyl urea, ethyl urea, dimethyl urea,
Examples include diethyl urea, tetramethyl urea, acetyl urea, acetyl methyl urea, phenyl urea, diphenyl urea and the like.
【００１０】また、尿素化合物のうち、環状尿素類とし
ては、２−イミダゾリジノン（エチレン尿素）、ヒダン
トイン、アラントイン、アロキサン酸、パラバン酸（オ
キサリル尿素）、５，５−メチルヒダントイン（アセチ
ルウレア）、ウラゾール、バルビツル酸（マロニル尿
素）、アロキサン（メソオキサリル尿素）、ジアルル酸
（ヒドロキシマロニル尿素）、ウラミル（アミノバルビ
ツル酸）、ジリツル酸（ニトロバルビツル酸）、ビオル
ル酸（イソニトロソバルビツル酸）、プソイド尿酸（ウ
レイドバルビツル酸）、ウラシル（２，６−ヒドロキシ
ピリミジン）、チミン（５−メチルウラシル）、イソシ
アヌル酸、尿酸（２，６，８−トリオキシプリン）、ア
ロキサンチン等をあげることができる。Among the urea compounds, cyclic ureas include 2-imidazolidinone (ethylene urea), hydantoin, allantoin, alloxanic acid, parabanic acid (oxalyl urea), 5,5-methylhydantoin (acetylurea) , Urazole, barbituric acid (malonyl urea), alloxan (mesoxalyl urea), dialluric acid (hydroxymalonyl urea), uramil (amino barbituric acid), dilituric acid (nitro barbituric acid), violuric acid (isonitrosobarbituric acid) , Pseudouric acid (ureidobarbituric acid), uracil (2,6-hydroxypyrimidine), thymine (5-methyluracil), isocyanuric acid, uric acid (2,6,8-trioxypurine), alloxanthin, etc. Can be.
【００１１】なかでも、２−イミダゾリジノン（エチレ
ン尿素）及びプソイド尿酸を使用すると本発明の効果が
よく発現し、好ましい。上記した尿素化合物は、一種単
独あるいは二種以上の組み合わせで使用される。また、
該尿素化合物とアニリンとを組み合わせ使用した場合、
担持体よりのアニリンの放出が制限できるので、有害性
を抑制することができ、さらに耐熱性にも優れるので、
好ましく使用することができる。多孔質担体に対する尿
素化合物の添加量は、多孔質担体無水物重量当たり０．
５〜６０重量％、好ましくは５〜３０重量％である。Of these, the use of 2-imidazolidinone (ethylene urea) and pseudouric acid is preferred because the effects of the present invention are well exhibited. The above-mentioned urea compounds are used alone or in combination of two or more. Also,
When the urea compound and aniline are used in combination,
Since the release of aniline from the carrier can be restricted, harmfulness can be suppressed, and furthermore, it has excellent heat resistance,
It can be preferably used. The amount of the urea compound to be added to the porous carrier is 0.
It is 5 to 60% by weight, preferably 5 to 30% by weight.
【００１２】本発明に用いられる多孔質担体としては、
尿素化合物、アニリン、遷移金属を担持することができ
ればとくに制限はなく、例えば、活性炭、活性白土、活
性アルミナ、ゼオライト、シリカゲル、モンモリロナイ
ト等をあげることができる。なかでも、大きな比表面積
によるガス接触効率の高さから活性炭が好ましい。多孔
質担体の形状としては粒状、粉末状、繊維状、布状ある
いは球状、円柱状、ハニカム状、板状、紙状、シート状
等の形状に成型されたもの等のいずれでもよい。The porous carrier used in the present invention includes:
There is no particular limitation as long as it can support a urea compound, aniline, and a transition metal, and examples thereof include activated carbon, activated clay, activated alumina, zeolite, silica gel, and montmorillonite. Among them, activated carbon is preferred because of its high gas contact efficiency due to its large specific surface area. The shape of the porous carrier may be any of granular, powdery, fibrous, cloth, spherical, cylindrical, honeycomb, plate, paper, sheet and the like.
【００１３】尿素化合物類を多孔質担体に担持させるに
は次のような方法によることができる。水に対して可溶
な尿素類を用いる場合、次のような方法が採用される。
当該化合物をあらかじめ水に溶解せしめ、この水溶液
に多孔質担体を浸漬した後、乾燥し、当該化合物を担持
する。当該化合物をあらかじめ水に溶解し、この水溶
液を多孔質担体に噴霧した後乾燥し、当該化合物を担持
する。The urea compounds can be supported on the porous carrier by the following method. When ureas soluble in water are used, the following method is employed.
The compound is dissolved in water in advance, the porous carrier is immersed in the aqueous solution, and then dried to support the compound. The compound is dissolved in water in advance, this aqueous solution is sprayed on a porous carrier, and then dried to support the compound.
【００１４】また、水に可溶、不溶を問わず、次の方法
によることもできる。当該化合物を分散剤、バインダ
ー等を加えエマルジョンを調製し、多孔質担持体に散布
し、当該化合物を担持する。粉末状、粒状あるいは繊
維状の多孔質担体に当該化合物、溶媒、バインダー等を
加え、造粒、あるいはハニカム状、板状、紙状等に成型
せしめる。粉末状、粒状あるいは繊維状の多孔質担体
をに加え、エマルジョンを調製し、多孔性ポリウレタ
ン、不織布、紙等に含浸あるいは塗工し、空気浄化剤と
して使用する。The following method can be used regardless of whether it is soluble or insoluble in water. An emulsion is prepared by adding the compound to a dispersant, a binder, and the like, and is dispersed on a porous carrier to carry the compound. The compound, the solvent, the binder, and the like are added to the powdery, granular, or fibrous porous carrier, and the mixture is granulated or formed into a honeycomb, plate, paper, or the like. An emulsion is prepared by adding a powdery, granular or fibrous porous carrier to a porous polyurethane, non-woven fabric, paper or the like, and used as an air purifying agent.
【００１５】、における方法において、必要に応じ
てバインダーが使用されるが、バインダーとしては、例
えば、カルボキシメチルセルロース、アクリルエマルジ
ョン、フッ化エチレンディスパージョン、ニトロセルロ
ース、ポリビニルアルコール、水ガラス、パルプ等をあ
げることができる。バインダーの使用量は少ないほど望
ましい。In the above method, a binder is used if necessary. Examples of the binder include carboxymethylcellulose, acrylic emulsion, fluorinated ethylene dispersion, nitrocellulose, polyvinyl alcohol, water glass, pulp and the like. be able to. The smaller the amount of the binder used, the better.
【００１６】本発明において、尿素化合物を遷移金属と
ともに担持させると、触媒効果が発現するので、得られ
る吸着剤の吸着性能をさらに向上させることができ、好
ましい。このような遷移金属としては、例えば、鉄、
銅、マグネシウム、ニッケル、チタン、亜鉛、コバルト
等があげられる。遷移金属は、遷移金属化合物として使
用するのが好ましく、遷移金属化合物としては遷移金属
の塩化物塩、硝酸塩、硫酸塩、燐酸塩、酢酸塩等が好ま
しい。遷移金属化合物の添加量は多孔質担持体に添加す
る尿素類無水物重量当たり１〜１００重量％が好まし
く、さらに好ましくは３〜３０重量％である。このよう
な化合物は前述の尿素類の担持方法、と同様の方法
で多孔質担持体に担持される。このとき尿素類と遷移金
属化合物は基本的に尿素類の担持を先に行うことが望ま
しい。In the present invention, when a urea compound is supported together with a transition metal, a catalytic effect is exhibited, and thus the adsorption performance of the obtained adsorbent can be further improved, which is preferable. Such transition metals include, for example, iron,
Examples include copper, magnesium, nickel, titanium, zinc, and cobalt. The transition metal is preferably used as a transition metal compound, and the transition metal compound is preferably a chloride, nitrate, sulfate, phosphate, acetate, or the like of the transition metal. The addition amount of the transition metal compound is preferably from 1 to 100% by weight, more preferably from 3 to 30% by weight, based on the weight of the urea anhydride added to the porous carrier. Such a compound is supported on the porous carrier in the same manner as the above-described method for supporting urea. At this time, it is preferable that the urea and the transition metal compound be loaded with the urea first.
【００１７】[0017]
【実施例】以下、実施例により本発明をさらに詳しく説
明するが、本発明はこれらに限定されるものではない。 実施例１ 多孔質担体として、ＢＥＴ比表面積１０００ｍ2／ｇ、
粒度２０〜４０メッシュの椰子殻を原料とする活性炭を
使用した。尿素化合物として、２−イミダゾリジノンを
使用した。あらかじめ、水に２−イミダゾリジノンを所
定量溶解せしめ、２−イミダゾリジノンの３０重量％水
溶液を調製した。容量２リットルの卓上型ミキサーに活
性炭２００ｇを入れ、ミキサーを運転しながら前記の水
溶液を所定量噴霧し、１０５℃で３時間乾燥させ、表１
に示すような２−イミダゾリジノン担持活性炭を得た。EXAMPLES The present invention will be described in more detail with reference to the following Examples, but it should not be construed that the invention is limited thereto. Example 1 As a porous carrier, a BET specific surface area of 1000 m 2 / g,
Activated carbon made from coconut shells having a particle size of 20 to 40 mesh was used. As the urea compound, 2-imidazolidinone was used. A predetermined amount of 2-imidazolidinone was dissolved in water in advance to prepare a 30% by weight aqueous solution of 2-imidazolidinone. 200 g of activated carbon was put into a 2 liter tabletop mixer, and a predetermined amount of the aqueous solution was sprayed while the mixer was operating, and dried at 105 ° C. for 3 hours.
As a result, activated carbon loaded with 2-imidazolidinone was obtained as shown in FIG.
【００１８】[0018]
【表１】 [Table 1]
【００１９】各吸着剤の２５℃におけるアセトアルデヒ
ドガスに対する吸着等温線を測定し、ガス濃度１０ｐｐ
ｍでの吸着容量を求めた。結果を表２に示す。The adsorption isotherm of each adsorbent for acetaldehyde gas at 25 ° C. was measured, and the gas concentration was 10 pp.
The adsorption capacity in m was determined. Table 2 shows the results.
【００２０】[0020]
【表２】 [Table 2]
【００２１】実施例２ 尿素化合物としてプソイド尿酸（ウレイドバルビツル
酸）を用いる以外は実施例１と同様にして表３に示すプ
ソイド尿酸担持活性炭を得た。Example 2 Pseudouric acid-loaded activated carbon shown in Table 3 was obtained in the same manner as in Example 1 except that pseudouric acid (ureidobarbituric acid) was used as the urea compound.
【００２２】[0022]
【表３】 [Table 3]
【００２３】得られた各吸着剤について実施例１と同様
の条件でアセトアルデヒドの平衡吸着性能を測定した。
結果を表４に示す。The equilibrium adsorption performance of acetaldehyde was measured for each of the obtained adsorbents under the same conditions as in Example 1.
Table 4 shows the results.
【００２４】[0024]
【表４】 [Table 4]
【００２５】実施例３ 尿素化合物としてＮーアセチルーＮ’ーメチル尿素を用
いる以外は実施例１と同様にして表５に示すＮーアセチ
ルーＮ’ーメチル尿素担持活性炭を得た。Example 3 An activated carbon carrying N-acetyl-N'-methylurea shown in Table 5 was obtained in the same manner as in Example 1 except that N-acetyl-N'-methylurea was used as the urea compound.
【００２６】[0026]
【表５】 [Table 5]
【００２７】得られた各吸着剤について実施例１と同様
の条件でアセトアルデヒドの平衡吸着性能を測定した。
結果を表６に示す。The equilibrium adsorption performance of acetaldehyde was measured for each of the obtained adsorbents under the same conditions as in Example 1.
Table 6 shows the results.
【００２８】[0028]
【表６】 [Table 6]
【００２９】実施例４ 多孔質担体として実施例１で使用したＢＥＴ比表面積で
１０００ｍ2／ｇ、粒度２０〜４０メッシュの椰子殻を
原料とする活性炭を使用し、担持成分としてはアニリン
及びＮーアセチルーＮ’ーメチル尿素を使用した。あら
かじめ水にＮーアセチルーＮ’ーメチル尿素を所定量溶
解せしめ、ＮーアセチルーＮ’ーメチル尿素の３０重量
％水溶液を調製した。容量２リットルの卓上型ミキサー
に活性炭２００ｇを入れ、ミキサーを運転しながらアニ
リンを所定量噴霧担持させた後、前記の水溶液を所定量
噴霧し、１０５℃で３時間乾燥させ、表７に示すアニリ
ン−ＮーアセチルーＮ’ーメチル尿素担持活性炭を得
た。Example 4 Activated carbon made of coconut shell having a BET specific surface area of 1000 m 2 / g and a particle size of 20 to 40 mesh used in Example 1 was used as a porous carrier, and aniline and N-acetyl- N'-methyl urea was used. A predetermined amount of N-acetyl-N'-methylurea was dissolved in water in advance to prepare a 30% by weight aqueous solution of N-acetyl-N'-methylurea. 200 g of activated carbon was placed in a tabletop mixer having a capacity of 2 liters, and a predetermined amount of aniline was spray-supported while the mixer was operating. An activated carbon carrying -N-acetyl-N'-methylurea was obtained.
【００３０】[0030]
【表７】 [Table 7]
【００３１】得られた各吸着剤について実施例１と同様
の条件でアセトアルデヒドの平衡吸着性能を測定した。
結果を表８に示す。The equilibrium adsorption performance of acetaldehyde was measured for each of the obtained adsorbents under the same conditions as in Example 1.
Table 8 shows the results.
【００３２】[0032]
【表８】 [Table 8]
【００３３】実施例５ 実施例４で得られた吸着剤の耐熱性をみるため、表９の
ように、各吸着剤を空気中にて１４０℃で３時間熱処理
を施した。Example 5 In order to check the heat resistance of the adsorbent obtained in Example 4, as shown in Table 9, each adsorbent was heat-treated in air at 140 ° C. for 3 hours.
【００３４】[0034]
【表９】 [Table 9]
【００３５】得られた各吸着剤について実施例１と同様
の条件でアセトアルデヒドの平衡吸着性能を測定した。
結果を表１０に示すが、アニリン―ＮーアセチルーＮ’
ーメチル尿素を添着したものは、アニリンのみを添着し
たものに比べてアセトアルデヒド吸着能の低下が少ない
ことがわかる。The equilibrium adsorption performance of acetaldehyde on each of the obtained adsorbents was measured under the same conditions as in Example 1.
The results are shown in Table 10, where aniline-N-acetyl-N '
It can be seen that the sample impregnated with -methylurea has a smaller decrease in acetaldehyde adsorption ability than the sample impregnated with only aniline.
【００３６】[0036]
【表１０】 [Table 10]
【００３７】実施例６ 多孔質担体として実施例１で使用したＢＥＴ比表面積で
１０００ｍ2／ｇ、粒度２０〜４０メッシュの椰子殻を
原料とする活性炭を使用した。担持成分として塩化亜鉛
及びプソイド尿酸を使用した。あらかじめ水に塩化亜鉛
及びプソイド尿酸を所定量溶解せしめ、それぞれ塩化亜
鉛水溶液及びプソイド尿酸の３０重量％水溶液を調製し
た。容量２リットルの卓上型ミキサーに活性炭２００ｇ
を入れ、ミキサーを運転しながらプソイド尿酸水溶液を
所定量噴霧担持させた後、塩化亜鉛水溶液を所定量噴霧
し、１０５℃で３時間乾燥させ、塩化亜鉛、プソイド尿
酸担持活性炭を得た。表１１に得られた活性炭の担持量
を示す。Example 6 As the porous carrier, the activated carbon used in Example 1 and made of a coconut shell having a BET specific surface area of 1000 m 2 / g and a particle size of 20 to 40 mesh was used. Zinc chloride and pseudouric acid were used as loading components. A predetermined amount of zinc chloride and pseudouric acid was dissolved in water in advance to prepare a zinc chloride aqueous solution and a 30% by weight aqueous solution of pseudouric acid, respectively. Activated carbon 200g in a 2 liter tabletop mixer
And a predetermined amount of a pseudouric acid aqueous solution was spray-supported while operating a mixer. Then, a predetermined amount of a zinc chloride aqueous solution was sprayed and dried at 105 ° C. for 3 hours to obtain activated carbon supporting zinc chloride and pseudouric acid. Table 11 shows the amount of the activated carbon obtained.
【００３８】[0038]
【表１１】 [Table 11]
【００３９】得られた各吸着剤について実施例１と同様
の条件でアセトアルデヒドの平衡吸着性能を測定した。
結果を表１２に示す。The equilibrium adsorption performance of acetaldehyde was measured for each of the obtained adsorbents under the same conditions as in Example 1.
Table 12 shows the results.
【００４０】[0040]
【表１２】 [Table 12]
【００４１】以上の結果から、本発明の吸着剤が低級ア
ルデヒド類を常温下において効率よく吸着し、また耐熱
性にも優れていること、吸着除去性能に優れているこ
と、また、遷移金属塩とあわせて併用することでより優
れた性能を示すことは明らかである。From the above results, it can be seen that the adsorbent of the present invention efficiently adsorbs lower aldehydes at room temperature, is excellent in heat resistance, is excellent in adsorption removal performance, and is excellent in transition metal salt. It is clear that when used together with, more excellent performance is exhibited.
【００４２】[0042]
【発明の効果】本発明により、尿素結合を有する尿素化
合物を多孔質担体に添着した空気浄化剤を提供すること
ができる。本発明の吸着剤は、低級アルデヒド類を常温
で効率よく除去し、耐熱性、安全性にも優れる。本発明
の吸着剤は、さらに特定の金属塩を併用することにより
さらに高い性能を発現させることができる。According to the present invention, an air purifying agent in which a urea compound having a urea bond is attached to a porous carrier can be provided. The adsorbent of the present invention efficiently removes lower aldehydes at room temperature and is excellent in heat resistance and safety. The adsorbent of the present invention can exhibit higher performance by further using a specific metal salt in combination.
Claims (4)
多孔質担体に添着した空気浄化剤。1. An air purifier comprising a porous carrier and a urea compound having a urea bond in the molecule.
尿素化合物を多孔質担体に添着した空気浄化剤。2. An air purifying agent comprising aniline and a urea compound having a urea bond in a molecule attached to a porous carrier.
燐酸塩又は硫酸塩、及び分子中に尿素結合を有する尿素
化合物を多孔質担体に添着した空気浄化剤。3. A transition metal nitrate, chloride salt, acetate salt,
An air purifying agent in which a phosphate or a sulfate and a urea compound having a urea bond in a molecule are attached to a porous carrier.
３いずれかの空気浄化剤。4. The method according to claim 1, wherein said porous carrier is activated carbon.
3 Any air purifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10108622A JPH11285619A (en) | 1998-04-02 | 1998-04-02 | Air cleaning agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10108622A JPH11285619A (en) | 1998-04-02 | 1998-04-02 | Air cleaning agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11285619A true JPH11285619A (en) | 1999-10-19 |
Family
ID=14489475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10108622A Pending JPH11285619A (en) | 1998-04-02 | 1998-04-02 | Air cleaning agent |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11285619A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6554886B2 (en) | 2000-02-22 | 2003-04-29 | Kuraray Chemical Co., Ltd. | Porous adsorbent and filter |
| CN1301780C (en) * | 2004-04-30 | 2007-02-28 | 罗文圣 | Noxious gas catching material and its preparation method |
| JP2009213987A (en) * | 2008-03-08 | 2009-09-24 | Aomori Prefectural Industrial Technology Research Center | Adsorbent and method for manufacturing the same |
| WO2019023350A1 (en) * | 2017-07-26 | 2019-01-31 | Sabic Global Technologies B.V. | Composite sorbent, devices, and methods |
| JP2019507674A (en) * | 2016-02-12 | 2019-03-22 | ビーエーエスエフ コーポレーション | Carbon dioxide adsorbent for air quality management |
| KR20220146938A (en) * | 2021-04-26 | 2022-11-02 | 충북대학교 산학협력단 | Method for fabricating impregnated activated carbon |
-
1998
- 1998-04-02 JP JP10108622A patent/JPH11285619A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6554886B2 (en) | 2000-02-22 | 2003-04-29 | Kuraray Chemical Co., Ltd. | Porous adsorbent and filter |
| CN1301780C (en) * | 2004-04-30 | 2007-02-28 | 罗文圣 | Noxious gas catching material and its preparation method |
| JP2009213987A (en) * | 2008-03-08 | 2009-09-24 | Aomori Prefectural Industrial Technology Research Center | Adsorbent and method for manufacturing the same |
| JP2019507674A (en) * | 2016-02-12 | 2019-03-22 | ビーエーエスエフ コーポレーション | Carbon dioxide adsorbent for air quality management |
| WO2019023350A1 (en) * | 2017-07-26 | 2019-01-31 | Sabic Global Technologies B.V. | Composite sorbent, devices, and methods |
| KR20220146938A (en) * | 2021-04-26 | 2022-11-02 | 충북대학교 산학협력단 | Method for fabricating impregnated activated carbon |
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