JPH09173830A - Production of adsorbent for deodorization - Google Patents
Production of adsorbent for deodorizationInfo
- Publication number
- JPH09173830A JPH09173830A JP7353981A JP35398195A JPH09173830A JP H09173830 A JPH09173830 A JP H09173830A JP 7353981 A JP7353981 A JP 7353981A JP 35398195 A JP35398195 A JP 35398195A JP H09173830 A JPH09173830 A JP H09173830A
- Authority
- JP
- Japan
- Prior art keywords
- carrier
- amino group
- organosilicon compound
- adsorbent
- organic silicon
- 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
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- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Treating Waste Gases (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、空気清浄器用フィ
ルタ、脱臭シート、脱臭用装飾材等に用いられる脱臭用
吸着剤に関し、詳しくは酸性ガスを主体とする臭気ガス
の脱臭に有効な吸着剤の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deodorizing adsorbent used for air purifier filters, deodorizing sheets, deodorizing decorative materials, and the like, and more specifically, an adsorbent effective for deodorizing odorous gas mainly containing acidic gas. Manufacturing method.
【０００２】[0002]
【従来の技術】室内、車室内等に存在する臭気ガス成分
は、酸性、中性および塩基性ガスに分かれ、中でも酸性
ガスは、その認知閾値が低く、臭気の認知に強い影響を
与えている。これは言い換えれば酸性ガスを除去するこ
とで、臭気のかなりの部分を除去することができること
を意味し、酸性ガスに対し高い吸着性能を有する吸着剤
の開発が重要となっている。2. Description of the Related Art Odor gas components present in the interior of a vehicle, a vehicle interior, etc. are divided into acidic, neutral and basic gases. Among them, acidic gas has a low cognitive threshold and has a strong influence on odor perception. . In other words, this means that by removing the acidic gas, a considerable part of the odor can be removed, and the development of an adsorbent having a high adsorption performance for the acidic gas is important.
【０００３】このような酸性ガス用の吸着剤としては、
活性炭表面に酸性臭気を吸着する塩基性物質を保持させ
たものが広く用いられている。しかしながら、この吸着
剤は、塩基性物質が活性炭表面に物理的に付着している
だけであるため、活性炭表面に均一に担持させることが
難しく、活性炭の広い表面積を十分に活用できなかっ
た。そこで、本発明者等は、表面に多数の水酸基を有す
るシリカ等の多孔性金属酸化物に着目し、その表面に、
水酸基と化学的に結合しうる官能基と、酸性ガスを吸着
しうるアミノ基を含有する有機珪素化合物を担持させた
吸着剤を先に提案した（特願平７−８７５２３号公
報）。この吸着剤は、担体表面の水酸基にアミノ基含有
有機珪素化合物が化学的に結合しているため、アミノ基
含有有機珪素化合物が均一に担持され、シリカ担体の大
きな表面積を有効に活用することが可能である。As an adsorbent for such an acidic gas,
A material in which a basic substance that adsorbs an acidic odor is held on the surface of activated carbon is widely used. However, since this adsorbent only physically attaches the basic substance to the surface of the activated carbon, it is difficult to uniformly support the surface of the activated carbon, and the large surface area of the activated carbon cannot be fully utilized. Therefore, the present inventors have focused on porous metal oxides such as silica having a large number of hydroxyl groups on the surface, on the surface,
An adsorbent carrying an organosilicon compound containing a functional group capable of chemically bonding with a hydroxyl group and an amino group capable of adsorbing an acidic gas was previously proposed (Japanese Patent Application No. 7-87523). In this adsorbent, the amino group-containing organosilicon compound is chemically bonded to the hydroxyl groups on the surface of the carrier, so that the amino group-containing organosilicon compound is uniformly supported and the large surface area of the silica carrier can be effectively utilized. It is possible.
【０００４】[0004]
【発明が解決しようとする課題】ところで、上記吸着剤
は、通常、アミノ基含有有機珪素化合物を含む溶液中に
担体を浸漬し、蒸発乾固して調製される。その吸着性能
を最大限に発揮させるには、担体表面の水酸基の全てに
アミノ基含有有機珪素化合物が結合していることが望ま
しいが、アミノ基含有有機珪素化合物の担持量を多くす
るためにその調製比を高めても、それに見合う吸着性能
の向上が見られないという問題があった。これは、担体
表面の水酸基と反応できなかったアミノ基含有有機珪素
化合物が重合し、担体の細孔を閉塞してしまうためであ
り、このような状態では、シリカ担体の多孔性に由来す
る高い比表面積が活かされない。また、閉塞された細孔
に存在するアミノ基含有有機珪素化合物による酸性ガス
の吸着を阻害してしまう結果となる。By the way, the adsorbent is usually prepared by immersing the carrier in a solution containing an amino group-containing organosilicon compound and evaporating to dryness. In order to maximize its adsorption performance, it is desirable that the amino group-containing organosilicon compound be bound to all the hydroxyl groups on the carrier surface, but in order to increase the amount of the amino group-containing organosilicon compound supported, Even if the preparation ratio is increased, there is a problem that the adsorption performance corresponding to it cannot be improved. This is because the amino group-containing organosilicon compound, which could not react with the hydroxyl groups on the surface of the carrier, is polymerized to close the pores of the carrier. The specific surface area is not utilized. In addition, the adsorption of the acidic gas by the amino group-containing organosilicon compound existing in the closed pores is hindered.
【０００５】本発明は、かかる問題点に鑑みなされたも
ので、担体表面の水酸基に対するアミノ基含有有機珪素
化合物の導入量を高め、しかも過剰のアミノ基含有有機
珪素化合物が担体の細孔を閉塞することを防止して、担
体表面に担持しているアミノ基含有有機珪素化合物の全
量を臭気ガス吸着に対して有効に働かせることのできる
脱臭用吸着剤の製造方法を提供することを目的とする。The present invention has been made in view of the above problems, and increases the introduction amount of the amino group-containing organosilicon compound with respect to the hydroxyl groups on the surface of the carrier, and the excess amino group-containing organosilicon compound blocks the pores of the carrier. It is an object of the present invention to provide a method for producing a deodorizing adsorbent capable of effectively preventing the occurrence of all the amino group-containing organosilicon compounds supported on the surface of the carrier to adsorb odorous gas. .
【０００６】[0006]
【課題を解決するための手段】本発明者等は上記実情に
鑑み鋭意検討を行ない、表面に多数の水酸基を有する多
孔性金属酸化物を担体として用い、その表面に、上記担
体表面の水酸基と化学的に結合しうる官能基とアミノ基
を含有する有機珪素化合物を担持してなる脱臭用吸着剤
を製造する方法として、上記担体表面の水酸基に対し上
記アミノ基含有有機珪素化合物が等量以上となるように
上記アミノ基含有有機珪素化合物の溶液を調製して、該
溶液中に上記担体を浸漬する工程と、上記担体を洗浄し
て余剰の上記アミノ基含有有機珪素化合物を除去する工
程と、上記担体を乾燥させる工程とからなる方法を採用
することで上記問題が解決できることを見出した（請求
項１）。Means for Solving the Problems The inventors of the present invention have conducted extensive studies in view of the above-mentioned circumstances, and use a porous metal oxide having a large number of hydroxyl groups on the surface as a carrier, and the surface thereof has hydroxyl groups on the surface of the carrier. As a method for producing a deodorizing adsorbent carrying an organosilicon compound containing a chemically bondable functional group and an amino group, the amino group-containing organosilicon compound is equal to or more than the hydroxyl group on the carrier surface. And a step of immersing the carrier in the solution, and a step of washing the carrier to remove excess amino group-containing organosilicon compound. It was found that the above problem can be solved by adopting a method comprising a step of drying the carrier (claim 1).
【０００７】担体表面の水酸基に対するアミノ基含有有
機珪素化合物の調製比を等量以上とすることで、上記担
体表面の水酸基に反応可能な最大量のアミノ基含有有機
珪素化合物が担持する。この時、反応できなかった余剰
の化合物は、続く洗浄工程において洗浄除去されるの
で、残留した化合物が重合して担体の細孔を閉塞するこ
とが防止される。よって、これを乾燥して得られる吸着
剤は、担体表面の水酸基に対しアミノ基含有有機珪素化
合物がほぼ過不足なく担持され、しかも細孔が閉塞され
ていないので、吸着性能を大幅に向上させることができ
る。By making the preparation ratio of the amino group-containing organosilicon compound to the hydroxyl group on the carrier surface equal to or more than the above, the maximum amount of the amino group-containing organosilicon compound capable of reacting with the hydroxyl group on the carrier surface is supported. At this time, the excess compound that cannot react is washed and removed in the subsequent washing step, so that the remaining compound is prevented from polymerizing and clogging the pores of the carrier. Therefore, the adsorbent obtained by drying this has an amino group-containing organosilicon compound supported almost exactly on the hydroxyl groups on the surface of the carrier, and since the pores are not blocked, the adsorption performance is greatly improved. be able to.
【０００８】上記金属酸化物としては、具体的には、表
面の水酸基に富むシリカが好適に使用される（請求項
２）。また、この時、上記溶液中のアミノ基含有有機珪
素化合物の量をシリカ１ｇに対し２．０×１０21分子以
上とすることが望ましく（請求項３）、シリカ担体表面
の水酸基に対するアミノ基含有有機珪素化合物の量が等
量以上となる。As the metal oxide, specifically, silica having a surface rich in hydroxyl groups is preferably used (claim 2). Further, at this time, it is desirable that the amount of the amino group-containing organosilicon compound in the solution is 2.0 × 10 21 molecules or more per 1 g of silica (Claim 3), and the amino group content relative to the hydroxyl groups on the silica carrier surface The amount of the organosilicon compound is equal to or more than the equal amount.
【０００９】[0009]
【発明の実施の形態】本発明の製造方法は、表面に多数
の水酸基を有する多孔性金属酸化物を担体として用い、
その表面に、上記担体表面の水酸基と化学的に結合しう
る官能基とアミノ基を含有する有機珪素化合物を担持し
てなる脱臭用吸着剤の製造に好適に用いられ、その吸着
性能を大きく向上させることができる。BEST MODE FOR CARRYING OUT THE INVENTION The production method of the present invention uses a porous metal oxide having a large number of hydroxyl groups on the surface as a carrier,
It is suitably used for the production of a deodorizing adsorbent having an organosilicon compound containing a functional group capable of chemically bonding with the hydroxyl group on the surface of the carrier and an amino group on its surface, and its adsorption performance is greatly improved. Can be made.
【００１０】ここで、担体として使用する、表面に多数
の水酸基を有する多孔性金属酸化物としては、例えば、
多孔性のシリカ、アルミナ、チタニア、ジルコニア等が
挙げられ、これらの複合酸化物であってもよい。なかで
もシリカが表面の水酸基に富み、担体として望ましい。Here, examples of the porous metal oxide having a large number of hydroxyl groups on the surface used as a carrier include, for example,
Examples thereof include porous silica, alumina, titania, zirconia, etc., and a composite oxide of these may be used. Of these, silica is rich in hydroxyl groups on the surface and is desirable as a carrier.
【００１１】これらの金属酸化物は平均細孔径が１〜１
００ｎｍの範囲にあるものを用いるのがよい。平均細孔
径が１ｎｍに満たないと、担持されるアミノ基含有有機
珪素化合物によって細孔が閉塞され、表面に均一に担持
させることが難しい。また、１００ｎｍを越えても、担
体の表面積が小さくなるため臭気ガスの吸着性能の改善
に大きな変化は認められない。より好ましくは１〜１５
ｎｍの範囲とし、臭気ガスの吸着性能を大きく向上させ
ることができる。なお、担体形状としては、粒状、粉末
状等、種々のものが使用できる。These metal oxides have an average pore size of 1 to 1
It is preferable to use one in the range of 00 nm. If the average pore diameter is less than 1 nm, the pores are blocked by the supported amino group-containing organosilicon compound, and it is difficult to uniformly support the surface. Further, even if it exceeds 100 nm, the surface area of the carrier becomes small, and no significant change is observed in the improvement of the odorous gas adsorption performance. More preferably 1 to 15
The range of nm can greatly improve the adsorption performance of odorous gas. As the carrier shape, various shapes such as granular shape and powder shape can be used.
【００１２】上記担体に担持される有機珪素化合物とし
ては、上記金属酸化物表面の水酸基と化学結合しうる水
酸基やアルコキシ基等の官能基と、酸性ガスを吸着しう
るアミノ基を含有する有機珪素化合物が好適に使用さ
れ、具体的には、３−アミノプロピルトリヒドロキシシ
ラン、γ−アミノプロピルトリエトキシシラン、γ−ア
ミノプロピルトリメトキシシラン等のアミノ基含有有機
珪素化合物が挙げられる。これらアミノ基含有有機珪素
化合物は、上記金属酸化物表面の多数の水酸基を介して
担体表面に固定される。The organosilicon compound supported on the carrier is an organosilicon compound containing a functional group such as a hydroxyl group or an alkoxy group capable of chemically bonding with the hydroxyl group on the surface of the metal oxide, and an amino group capable of adsorbing an acidic gas. A compound is preferably used, and specific examples thereof include amino group-containing organosilicon compounds such as 3-aminopropyltrihydroxysilane, γ-aminopropyltriethoxysilane, and γ-aminopropyltrimethoxysilane. These amino group-containing organosilicon compounds are fixed on the surface of the carrier through the numerous hydroxyl groups on the surface of the metal oxide.
【００１３】次に、上記担体にアミノ基含有有機珪素化
合物を担持させた吸着剤を製造する方法について説明す
る。まず、担体表面の水酸基に対しアミノ基含有有機珪
素化合物が等量ないしそれ以上となるように、溶媒、通
常、水を加えてアミノ基含有有機珪素化合物の溶液を調
製する。例えばシリカを担体とする場合には、一般にシ
リカ１ｇ当たり２．０×１０21個の水酸基が存在すると
されており、従って、シリカ１ｇに対し２．０×１０21
分子以上のアミノ基含有有機珪素化合物を含有する水溶
液を調製すればよい。Next, a method for producing an adsorbent in which an amino group-containing organosilicon compound is supported on the carrier will be described. First, a solution of the amino group-containing organosilicon compound is prepared by adding a solvent, usually water, so that the amino group-containing organosilicon compound is equal to or more than the hydroxyl groups on the carrier surface. For example, when silica-carrier generally are the 2.0 × 10 21 hydroxyl groups per silica 1g exists, therefore, silica 1g to 2.0 × 10 21
An aqueous solution containing a molecule or more amino group-containing organosilicon compound may be prepared.
【００１４】そして、このようにして調製された溶液中
に、担体となる多孔性の金属酸化物を浸漬する。浸漬処
理は、通常、常温で行い、１０分〜２４時間程度、攪拌
して、担体に上記溶液を含浸させる。これにより、担体
表面の水酸基にアミノ基含有有機珪素化合物の官能基が
縮合反応により結合し、固定される。この時、攪拌時間
を長くすることで担持量は増加するが、２４時間を越え
て処理を行ってもそれ以上担持量を増す効果はない。Then, a porous metal oxide serving as a carrier is immersed in the solution thus prepared. The dipping treatment is usually performed at room temperature and stirred for about 10 minutes to 24 hours to impregnate the carrier with the above solution. As a result, the functional group of the amino group-containing organosilicon compound is bonded and fixed to the hydroxyl group on the surface of the carrier by a condensation reaction. At this time, the carried amount increases by prolonging the stirring time, but even if the treatment is carried out for more than 24 hours, there is no effect of increasing the carried amount further.
【００１５】ここで、単純には、シリカ１ｇに対し２．
０×１０21分子のアミノ基含有有機珪素化合物を使用す
れば、シリカ表面の水酸基とアミノ基含有有機珪素化合
物が過不足なく反応するはずであるが、実際には、水酸
基の数が使用するシリカ担体によってある程度のばらつ
きをもつことから、その調製比の最適値を決定すること
は難しい。また、溶液中の不純物がアミノ基含有有機珪
素化合物より先に水酸基に結合してしまうことがあり、
この場合、過剰なアミノ基含有有機珪素化合物が存在す
ることになる。Here, simply, for 1 g of silica, 2.
If 0 × 10 21 molecules of the amino group-containing organosilicon compound are used, the hydroxyl groups on the silica surface should react with the amino group-containing organosilicon compound without excess or deficiency. Since there is some variation depending on the carrier, it is difficult to determine the optimum value of the preparation ratio. In addition, impurities in the solution may be bonded to the hydroxyl group before the amino group-containing organosilicon compound,
In this case, excess amino group-containing organosilicon compound is present.
【００１６】よって、本発明方法では、等量ないしそれ
以上のアミノ基含有有機珪素化合物を含有する溶液に担
体を浸漬して、担体表面の水酸基にできるだけ多くのア
ミノ基含有有機珪素化合物を結合させ、その後、上記担
体を洗浄することによって、反応しなかったアミノ基含
有有機珪素化合物を除去する。洗浄液には上記アミノ基
含有有機珪素化合物の溶液を調製する際の溶媒を使用す
ればよく、その量は、通常、上記溶液量の３倍以上とす
る。余剰のアミノ基含有有機珪素化合物の重合は、乾燥
工程において起こると考えられ、その前に洗浄工程に付
すことで、余剰のアミノ基含有有機珪素化合物を洗い流
すことができる。Therefore, in the method of the present invention, the carrier is immersed in a solution containing an equal amount or more of the amino group-containing organosilicon compound to bond the hydroxyl groups on the surface of the carrier with as much amino group-containing organosilicon compound as possible. Then, the unreacted amino group-containing organosilicon compound is removed by washing the carrier. As the cleaning liquid, a solvent for preparing the solution of the amino group-containing organosilicon compound may be used, and the amount thereof is usually 3 times or more the amount of the solution. It is considered that the polymerization of the excess amino group-containing organosilicon compound occurs in the drying step, and the excess amino group-containing organosilicon compound can be washed away by performing the washing step before that.
【００１７】その後、乾燥工程において、上記担体を加
温して水分を蒸発させて脱臭用の吸着剤とする。かくし
て得られた脱臭剤は、従来より多い量のアミノ基含有有
機珪素化合物が、担体表面に均一に担持され、しかも細
孔を閉塞することがないので、従来に比し、高い吸着能
力を有する。After that, in the drying step, the carrier is heated to evaporate the water, thereby forming an adsorbent for deodorization. The deodorant thus obtained has a higher adsorption capacity than the conventional one because the amino group-containing organosilicon compound in a larger amount than before is uniformly supported on the carrier surface and does not block the pores. .
【００１８】[0018]
【実施例】以下、本発明方法を実施例により詳細に説明
するが、本発明はこれら実施例により何ら限定されるも
のではない。 （実施例１）担体としてシリカを、アミノ基含有有機珪
素化合物として信越シリコーン（株）製のγ−アミノプ
ロピルトリヒドロキシシランを使用して、以下の方法で
吸着剤を調製した。まず、γ−アミノプロピルトリヒド
ロキシシラン０．７重量部とイオン交換水３重量部を混
合して得た水溶液中に、シリカ担体１重量部を加え、常
温で１時間攪拌した。次いで、イオン交換水を用いて十
分に洗浄した後、１２０℃で蒸発乾固して脱臭用吸着剤
を得た。EXAMPLES The method of the present invention will be described in detail below with reference to examples, but the present invention is not limited to these examples. Example 1 An adsorbent was prepared by the following method using silica as a carrier and γ-aminopropyltrihydroxysilane manufactured by Shin-Etsu Silicone Co., Ltd. as an amino group-containing organic silicon compound. First, 1 part by weight of a silica carrier was added to an aqueous solution obtained by mixing 0.7 part by weight of γ-aminopropyltrihydroxysilane and 3 parts by weight of ion-exchanged water, and the mixture was stirred at room temperature for 1 hour. Then, after thoroughly washing with ion-exchanged water, it was evaporated to dryness at 120 ° C. to obtain a deodorizing adsorbent.
【００１９】上記のようにして得た吸着剤を、流通型測
定装置内に配し、酸性ガスとしてアセトアルデヒドを流
通させて、吸着剤通過後のアセトアルデヒド濃度をガス
クロマトグラフで測定し、アセトアルデヒドの吸着量を
調べた。結果を下記表１に示す。The adsorbent obtained as described above is placed in a flow-type measuring apparatus, acetaldehyde is passed as an acidic gas, and the acetaldehyde concentration after passing through the adsorbent is measured by gas chromatography to determine the adsorbed amount of acetaldehyde. I checked. The results are shown in Table 1 below.
【００２０】[0020]
【表１】 [Table 1]
【００２１】（実施例２）γ−アミノプロピルトリヒド
ロキシシランの使用量を１重量部とした以外は実施例１
と同様の方法で吸着剤を作製し、同様にして流通型測定
装置を用いたアセトアルデヒドの吸着量の測定を行なっ
た。結果を表１に併記する。Example 2 Example 1 except that the amount of γ-aminopropyltrihydroxysilane used was 1 part by weight.
An adsorbent was prepared in the same manner as in, and the adsorbed amount of acetaldehyde was measured in the same manner using a flow-type measuring device. The results are also shown in Table 1.
【００２２】（実施例３）シリカ担体の浸漬時間を２４
時間とした以外は実施例１と同様の方法で吸着剤を作製
し、同様にして流通型測定装置を用いたアセトアルデヒ
ドの吸着量の測定を行なった。結果を表１に併記する。Example 3 A silica carrier was immersed for 24 hours.
An adsorbent was prepared in the same manner as in Example 1 except that the time was set, and the adsorbed amount of acetaldehyde was measured in the same manner using a flow-type measuring device. The results are also shown in Table 1.
【００２３】（実施例４）γ−アミノプロピルトリヒド
ロキシシランの使用量を１重量部とし、浸漬時間を２４
時間とした以外は実施例１と同様の方法で吸着剤を作製
し、同様にして流通型測定装置を用いたアセトアルデヒ
ドの吸着量の測定を行なった。結果を表１に併記する。Example 4 The amount of γ-aminopropyltrihydroxysilane used was 1 part by weight, and the immersion time was 24.
An adsorbent was prepared in the same manner as in Example 1 except that the time was set, and the adsorbed amount of acetaldehyde was measured in the same manner using a flow-type measuring device. The results are also shown in Table 1.
【００２４】（比較例１）担体浸漬後のイオン交換水で
の洗浄を省略した以外は実施例１と同様にして吸着剤を
得た。同様にして流通型測定装置を用いたアセトアルデ
ヒドの吸着量の測定を行ない、結果を表２に示す。Comparative Example 1 An adsorbent was obtained in the same manner as in Example 1 except that the washing with ion-exchanged water after the immersion of the carrier was omitted. Similarly, the adsorbed amount of acetaldehyde was measured using a flow-type measuring device, and the results are shown in Table 2.
【００２５】（比較例２）担体浸漬後のイオン交換水で
の洗浄を省略した以外は実施例２と同様にして吸着剤を
得た。同様にして流通型測定装置を用いたアセトアルデ
ヒドの吸着量の測定を行ない、結果を表２に併記する。Comparative Example 2 An adsorbent was obtained in the same manner as in Example 2 except that the washing with ion-exchanged water after the immersion of the carrier was omitted. Similarly, the amount of adsorbed acetaldehyde was measured using a flow-type measuring device, and the results are also shown in Table 2.
【００２６】（比較例３）担体浸漬後のイオン交換水で
の洗浄を省略した以外は実施例３と同様にして吸着剤を
得た。同様にして流通型測定装置を用いたアセトアルデ
ヒドの吸着量の測定を行ない、結果を表２に併記する。Comparative Example 3 An adsorbent was obtained in the same manner as in Example 3 except that the washing with ion-exchanged water after the immersion of the carrier was omitted. Similarly, the amount of adsorbed acetaldehyde was measured using a flow-type measuring device, and the results are also shown in Table 2.
【００２７】（比較例４）担体浸漬後のイオン交換水で
の洗浄を省略した以外は実施例４と同様にして吸着剤を
得た。同様にして流通型測定装置を用いたアセトアルデ
ヒドの吸着量の測定を行ない、結果を表２に併記する。Comparative Example 4 An adsorbent was obtained in the same manner as in Example 4 except that the washing with ion-exchanged water after the immersion of the carrier was omitted. Similarly, the amount of adsorbed acetaldehyde was measured using a flow-type measuring device, and the results are also shown in Table 2.
【００２８】[0028]
【表２】 [Table 2]
【００２９】表１、２に明らかなように、担体を浸漬
後、洗浄を行った実施例では、いずれも、アミノ基含有
有機珪素化合物の担持量は減少しているものの、アセト
アルデヒドの吸着量は大きく向上している。これは比較
例では余剰のアミノ基含有有機珪素化合物が重合して細
孔を閉塞する等により、アミノ基含有有機珪素化合物の
吸着能力が十分発揮されていないのに対し、本実施例で
は洗浄により余剰のアミノ基含有有機珪素化合物が除去
されたことで、吸着効率が大幅に向上したものと考えら
れる。As is clear from Tables 1 and 2, in each of the examples in which the carrier was immersed and washed, the amount of the amino group-containing organosilicon compound supported was reduced, but the amount of acetaldehyde adsorbed was reduced. It has improved significantly. This is because, in the comparative example, since the excess amino group-containing organosilicon compound is polymerized to block the pores, the adsorption ability of the amino group-containing organosilicon compound is not sufficiently exerted, whereas in the present example, by the cleaning. It is considered that the adsorption efficiency was significantly improved by removing the surplus amino group-containing organosilicon compound.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 門脇 覚 愛知県刈谷市昭和町１丁目１番地 日本電 装株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Satoshi Kadowaki 1-1, Showa-cho, Kariya city, Aichi Prefecture
Claims (3)
酸化物を担体として用い、その表面に、上記担体表面の
水酸基と化学的に結合しうる官能基とアミノ基を含有す
る有機珪素化合物を担持してなる脱臭用吸着剤の製造方
法であって、上記担体表面の水酸基に対し等量以上の上
記アミノ基含有有機珪素化合物を含有する溶液を調製し
て、該溶液中に上記担体を浸漬する工程と、上記担体を
洗浄して余剰の上記アミノ基含有有機珪素化合物を除去
する工程と、上記担体を乾燥させる工程とからなること
を特徴とする脱臭用吸着剤の製造方法。1. An organic silicon compound having a functional group capable of chemically bonding to a hydroxyl group on the surface of the carrier and an amino group is used on the surface of a porous metal oxide having a large number of hydroxyl groups as a carrier. A method for producing an adsorbent for deodorization carried, comprising preparing a solution containing an equal amount or more of the amino group-containing organosilicon compound with respect to the hydroxyl groups on the surface of the carrier, and immersing the carrier in the solution. And a step of washing the carrier to remove excess amino group-containing organosilicon compound, and a step of drying the carrier, the method for producing a deodorizing adsorbent.
記載の脱臭用吸着剤の製造方法。2. The metal oxide is silica.
A method for producing the deodorizing adsorbent described.
シリカ１ｇに対し２．０×１０21分子以上である請求項
２記載の脱臭用吸着剤の製造方法。3. The method for producing a deodorizing adsorbent according to claim 2, wherein the amount of the organic silicon compound in the solution is 2.0 × 10 21 molecules or more per 1 g of silica.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35398195A JP3455000B2 (en) | 1995-12-28 | 1995-12-28 | Method for producing adsorbent for deodorization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35398195A JP3455000B2 (en) | 1995-12-28 | 1995-12-28 | Method for producing adsorbent for deodorization |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09173830A true JPH09173830A (en) | 1997-07-08 |
| JP3455000B2 JP3455000B2 (en) | 2003-10-06 |
Family
ID=18434523
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP35398195A Expired - Fee Related JP3455000B2 (en) | 1995-12-28 | 1995-12-28 | Method for producing adsorbent for deodorization |
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| Country | Link |
|---|---|
| JP (1) | JP3455000B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007088834A1 (en) * | 2006-02-01 | 2007-08-09 | Basf Coatings Japan Ltd. | Thermosetting coating composition for precoating and metal sheet precoated therewith |
| JP2010173343A (en) * | 2009-01-27 | 2010-08-12 | Nicca Chemical Co Ltd | Vehicular interior material |
| KR20140130456A (en) | 2012-02-09 | 2014-11-10 | 도아고세이가부시키가이샤 | Deodorant against aldehyde-based gases and process for manufacturing same |
| WO2018074270A1 (en) * | 2016-10-21 | 2018-04-26 | ラサ工業株式会社 | White deodorant, chemical product with deodorant function, method for using white deodorant and method for manufacturing white deodorant |
-
1995
- 1995-12-28 JP JP35398195A patent/JP3455000B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007088834A1 (en) * | 2006-02-01 | 2007-08-09 | Basf Coatings Japan Ltd. | Thermosetting coating composition for precoating and metal sheet precoated therewith |
| JP2010173343A (en) * | 2009-01-27 | 2010-08-12 | Nicca Chemical Co Ltd | Vehicular interior material |
| KR20140130456A (en) | 2012-02-09 | 2014-11-10 | 도아고세이가부시키가이샤 | Deodorant against aldehyde-based gases and process for manufacturing same |
| US9302023B2 (en) | 2012-02-09 | 2016-04-05 | Toagosei Co., Ltd. | Aldehyde gas deodorant and method for producing same |
| WO2018074270A1 (en) * | 2016-10-21 | 2018-04-26 | ラサ工業株式会社 | White deodorant, chemical product with deodorant function, method for using white deodorant and method for manufacturing white deodorant |
| JPWO2018074270A1 (en) * | 2016-10-21 | 2019-06-24 | ラサ工業株式会社 | White deodorant, chemical product with deodorizing function, method of using white deodorant, and method of producing white deodorant |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3455000B2 (en) | 2003-10-06 |
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