JPH04156951A - Catalytic body - Google Patents
Catalytic bodyInfo
- Publication number
- JPH04156951A JPH04156951A JP2278346A JP27834690A JPH04156951A JP H04156951 A JPH04156951 A JP H04156951A JP 2278346 A JP2278346 A JP 2278346A JP 27834690 A JP27834690 A JP 27834690A JP H04156951 A JPH04156951 A JP H04156951A
- Authority
- JP
- Japan
- Prior art keywords
- catalyst
- fixing agent
- binder
- fibers
- activity
- 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.)
- Pending
Links
- 230000003197 catalytic effect Effects 0.000 title abstract description 4
- 239000003054 catalyst Substances 0.000 claims abstract description 54
- 239000000835 fiber Substances 0.000 claims abstract description 19
- 239000000919 ceramic Substances 0.000 claims abstract description 15
- 239000011230 binding agent Substances 0.000 claims abstract description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910001463 metal phosphate Inorganic materials 0.000 claims abstract description 11
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 9
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims abstract 2
- 229910052814 silicon oxide Inorganic materials 0.000 claims abstract 2
- 230000001590 oxidative effect Effects 0.000 claims 1
- 230000009471 action Effects 0.000 abstract description 2
- 230000000717 retained effect Effects 0.000 abstract description 2
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 10
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 7
- 238000010411 cooking Methods 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 5
- 239000000377 silicon dioxide Substances 0.000 description 5
- 238000009863 impact test Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 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
- 239000007864 aqueous solution Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000834 fixative Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明はたとえば調理器に応用され、調理中に発生する
庫内の油汚れを浄化する触媒体に関するものである。DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention is applied to, for example, a cooking appliance, and relates to a catalyst body that cleans oil stains inside the cooking appliance that occur during cooking.
従来の技術
従来から調理器庫内壁面に形成した触媒を含有した被膜
により油汚れを浄化するものがあった。BACKGROUND OF THE INVENTION Conventionally, there have been devices that purify oil stains by using a film containing a catalyst formed on the inner wall surface of a cooking appliance.
これに対して、本発明者等はセラミック繊維の積層体に
触媒を保持させた触媒体を金属繊維の積層体により保護
した高活性の触媒体を、すでに調理器への応用が可能な
レベルにした。In contrast, the present inventors have developed a highly active catalyst body in which the catalyst is held in a ceramic fiber laminate and protected by a metal fiber laminate, to the level that it can already be applied to cooking appliances. did.
発明が解決しようとする課題
本発明者等が提案したセラミックあるいは金属繊維を用
いた触媒体によれば、３００°Ｃ程度の加熱でほとんど
の汚れを浄化してしまうが、セラミック繊維により保持
されている触媒が欠落する可能性があった。Problems to be Solved by the Invention According to the catalyst body using ceramic or metal fibers proposed by the present inventors, most of the dirt is purified by heating to about 300°C, but the dirt is retained by the ceramic fibers. There was a possibility that the existing catalyst would be missing.
これは、製品に落下などの強い衝撃が加わる場合にみら
れる０本発明は、触媒の欠落がない触媒体を提供するも
のである。This occurs when the product is subjected to a strong impact such as being dropped.The present invention provides a catalyst body with no catalyst missing.
課題を解決するための手段
上記課題を解決するために、本発明は触媒とセラミック
の繊維の系に触媒固定側として無機質バインダーを添加
する。無機バインダーにより触媒の保持力を強化できる
。Means for Solving the Problems In order to solve the above problems, the present invention adds an inorganic binder to the catalyst-ceramic fiber system as a catalyst fixing side. The inorganic binder can strengthen the holding power of the catalyst.
作用 上記手段の作用について説明する。action The operation of the above means will be explained.
セラミック（例えばシリカ・アルミナ）の長繊維は、長
さが数１０謹、直径数μｍである。単独ではＩ！械的強
慶は弱いが繊維を積層させノート状などムこ成型するこ
とによりある程度の強度がでる。Ceramic (for example, silica/alumina) long fibers have a length of several tens of centimeters and a diameter of several micrometers. Alone I! Mechanical strength is weak, but a certain degree of strength can be achieved by layering fibers and forming them into notebook-like shapes.
（例えば、引っ張り強度が２５ｔｘｔａ幅、０．５＋ｗ
厚で３．０ｋｇ）
このようムこしてできるセラミック繊維の積層体は、約
９０％の空隙率をもち、さらに空孔径は数１０〜１００
μｍ七大きい。この空隙に触媒をセラミック繊維重量に
対して例えば１，１の比において混合すると触媒反応に
必要な酸素が、触媒と反応質との接触面に十分に供給さ
れるために調理器の油汚れを３００’Ｃ以下でも分解で
きる。(For example, the tensile strength is 25txta width, 0.5+w
(Thickness: 3.0 kg) The ceramic fiber laminate produced by this process has a porosity of approximately 90%, and the pore diameter is several tens to hundreds.
Seven μm large. When a catalyst is mixed into these voids at a ratio of, for example, 1:1 to the weight of the ceramic fibers, the oxygen necessary for the catalytic reaction is sufficiently supplied to the contact surface between the catalyst and the reactant, thereby eliminating oil stains in the cooker. It can be decomposed even at temperatures below 300'C.
さらに固定剤として無機バインダーを添加すると、触媒
とセラミック繊維との結合力が従来に比べ大きくなり強
い衝撃による触媒の欠落が防止できると同時に触媒体全
体の強度が向上する。Furthermore, when an inorganic binder is added as a fixing agent, the bonding force between the catalyst and the ceramic fibers becomes larger than that of the conventional catalyst, thereby preventing the catalyst from falling off due to strong impact, and at the same time improving the strength of the entire catalyst body.
また、バインダーの影響から従来の被膜でみられたよう
な触媒活性が低下する懸念があるものの、バインダーの
添加量を最適化するとバインダーの活性への影響を少な
くすることができる。Furthermore, although there is a concern that the catalytic activity may be reduced as seen in conventional coatings due to the influence of the binder, the influence of the binder on the activity can be reduced by optimizing the amount of binder added.
実施例
以下図面を用いて、本発明の一実施例について説明する
。EXAMPLE An example of the present invention will be described below with reference to the drawings.
第１回は、本発明による触媒体の拡大断面図である。１
は固定剤としての無機バインダー（シリカゾル使用）２
は触媒、３はソリ力・アルミナ主成分のセラミック繊維
である。従来はセラミック繊維がつくる空隙部に、触媒
が固定剤なしで保持されただけの状態のために強い衝撃
で触媒が欠落する可能性があった。例えば従来の触媒体
に、１００４あたり５００ｇの加重を高さ１ｍから落と
す衝撃テストで衝撃を加えると触媒の欠落があった。The first is an enlarged cross-sectional view of a catalyst body according to the present invention. 1
is an inorganic binder (using silica sol) as a fixing agent 2
3 is a catalyst, and 3 is a ceramic fiber mainly composed of warp and alumina. In the past, the catalyst was simply held in the voids created by the ceramic fibers without a fixing agent, so there was a possibility that the catalyst would fall off due to strong impact. For example, when a conventional catalyst body was subjected to an impact test in which a load of 500 g per 1004 was dropped from a height of 1 m, the catalyst was found to be missing.
しかし、本発明の構成においてはこのような衝撃でも触
媒の欠落はなかった。However, in the structure of the present invention, no catalyst was missing even with such impact.
無機バインダーとしてはシリカゾルやアルミナヅルを使
った。そのほかにも金属リン酸塩を固定剤として使って
も差し支えない。Silica sol and alumina silica were used as inorganic binders. In addition, metal phosphates may also be used as fixatives.
このような無機バインダーが触媒活性におよぼす影響に
ついて説明する。The influence of such an inorganic binder on catalyst activity will be explained.
シリカゾル、アルミナヅルの場合、触媒体の重量に対し
て２Ｑｗｔ％水溶液を重量で１：０．５〜′１＝４程度
で浸透させると触媒活性はほとんど変化せずに油汚れを
３００°Ｃ以下で分解（浄化）できる。In the case of silica sol and alumina silica, if a 2Qwt% aqueous solution is permeated to the weight of the catalyst at a ratio of 1:0.5 to '1=4, the catalyst activity will hardly change and the oil stains will be removed at 300°C or below. Can be decomposed (purified).
１：４以上にしても活性が太き（低下することはなく実
用上１：０．５〜ｌ：４でよい。Even if the ratio is 1:4 or more, the activity is large (it does not decrease, and for practical purposes, 1:0.5 to 1:4 may be sufficient).
シリカゾル。アルミナゾルのいずれも乾燥させると粒子
状のシリカ、アルミナが形成されるために触媒表面が被
われることもほとんどなく活性の低下にはならないと考
えられる。Silica sol. When any of the alumina sol is dried, particulate silica and alumina are formed, so the catalyst surface is hardly covered and it is thought that the activity will not be reduced.
一方、金属リン酸塩の場合は触媒表面が被われるために
活性の低下は大きい。例えば、金属リン酸塩にはケイ素
、アルミニウム、リンから成る金属リン酸塩がある。こ
れによって触媒体の空孔さえも潰されてしまう。しかし
ながら強度が大きく向上するメリットがある。On the other hand, in the case of metal phosphates, the activity is greatly reduced because the catalyst surface is covered. For example, metal phosphates include metal phosphates consisting of silicon, aluminum, and phosphorus. As a result, even the pores in the catalyst are crushed. However, it has the advantage of greatly improving strength.
従って、活性低下の防止が課題となる。この場合、活性
低下を防ぐには金属リン酸塩溶液の濃度をコントロール
することも一手段である。また、触媒体の厚さ方向にバ
インダーの濃度勾配をもたせてもよい。Therefore, prevention of activity reduction becomes an issue. In this case, one way to prevent a decrease in activity is to control the concentration of the metal phosphate solution. Further, a concentration gradient of the binder may be provided in the thickness direction of the catalyst body.
第２図に上記金属リン酸塩を用いたときの触媒体の拡大
断面図を示した。４が金属リン酸塩、５が触媒、６がセ
ラミック繊維である。FIG. 2 shows an enlarged cross-sectional view of a catalyst body using the above metal phosphate. 4 is a metal phosphate, 5 is a catalyst, and 6 is a ceramic fiber.
第３図は第２図と同じ構成ではあるが、金属リン酸塩の
濃度が濃いために触媒活性が低下した場合である。FIG. 3 has the same configuration as FIG. 2, but shows a case where the catalytic activity is reduced due to the high concentration of metal phosphate.
第２図の触媒体で油汚れを３００℃程度で分解する。ま
た触媒の欠落について、第１図のものと同し衝撃テスト
を行ったところ触媒の欠落はみられなかった。The catalyst shown in Figure 2 decomposes oil stains at about 300°C. Regarding the lack of catalyst, an impact test similar to that shown in Fig. 1 was conducted, and no catalyst was found to be missing.
従って製品の落下衝撃による従来の懸念が解消される。Therefore, the conventional concern about the impact of dropping the product is eliminated.
発明の効果
以上、説明したように、本発明によれば従来懸念された
触媒の欠落がなくなり触媒体の幅広い応用が可能になる
。Effects of the Invention As explained above, according to the present invention, the lack of catalyst, which was a concern in the past, is eliminated, and the catalyst body can be used in a wide range of applications.
第１図は本発明の一実施例の触媒体の拡大図、第２図は
同触媒体の拡大図、第３図は同触媒体の活性の低い触媒
体の拡大図である。
１・・・・・・無機バインダー（シリカゾル）、２・・
・・・・触媒、３・・・・・・シリカ・アルミナ繊維、
４・・・・・・金属リン酸塩、５・・・・・・触媒、６
・・・・・・セラミック繊維。
代理人の氏名 弁理士 小鍜治 明 ほか２名鶴 １
図FIG. 1 is an enlarged view of a catalyst body according to an embodiment of the present invention, FIG. 2 is an enlarged view of the same catalyst body, and FIG. 3 is an enlarged view of a catalyst body with low activity of the same catalyst body. 1... Inorganic binder (silica sol), 2...
...Catalyst, 3...Silica/alumina fiber,
4...Metal phosphate, 5...Catalyst, 6
...Ceramic fiber. Name of agent: Patent attorney Akira Okaji and two others Tsuru 1
figure
Claims (2)
めのセラミック繊維と、前記触媒を固定する固定剤とか
らなる触媒体。(1) A catalyst body comprising a catalyst having an oxidizing effect, ceramic fibers for holding the catalyst, and a fixing agent for fixing the catalyst.
あるいは金属リン酸塩の無機の結合剤である特許請求の
範囲第１項記載の触媒体。(2) The catalyst body according to claim 1, wherein the fixing agent is a sol of silicon oxide, aluminum oxide, or an inorganic binder of metal phosphate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2278346A JPH04156951A (en) | 1990-10-16 | 1990-10-16 | Catalytic body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2278346A JPH04156951A (en) | 1990-10-16 | 1990-10-16 | Catalytic body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04156951A true JPH04156951A (en) | 1992-05-29 |
Family
ID=17596054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2278346A Pending JPH04156951A (en) | 1990-10-16 | 1990-10-16 | Catalytic body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04156951A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6683146B2 (en) | 1999-07-05 | 2004-01-27 | Fuji Xerox Co., Ltd. | Heterogeneous polymerization catalyst, process for producing acrylic polymer, and acrylic polymer |
-
1990
- 1990-10-16 JP JP2278346A patent/JPH04156951A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6683146B2 (en) | 1999-07-05 | 2004-01-27 | Fuji Xerox Co., Ltd. | Heterogeneous polymerization catalyst, process for producing acrylic polymer, and acrylic polymer |
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