JPH03169350A - Production of catalyst carrier made of ceramic paper - Google Patents
Production of catalyst carrier made of ceramic paperInfo
- Publication number
- JPH03169350A JPH03169350A JP1308391A JP30839189A JPH03169350A JP H03169350 A JPH03169350 A JP H03169350A JP 1308391 A JP1308391 A JP 1308391A JP 30839189 A JP30839189 A JP 30839189A JP H03169350 A JPH03169350 A JP H03169350A
- Authority
- JP
- Japan
- Prior art keywords
- ceramic
- paper
- ceramic paper
- catalyst
- impregnated
- 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
- 239000000919 ceramic Substances 0.000 title claims abstract description 35
- 239000003054 catalyst Substances 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 48
- -1 organosilane compound Chemical class 0.000 claims abstract description 16
- 239000000835 fiber Substances 0.000 claims abstract description 11
- 229910000077 silane Inorganic materials 0.000 claims description 10
- 239000000463 material Substances 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 9
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 abstract description 8
- 238000005470 impregnation Methods 0.000 abstract description 5
- LFQCEHFDDXELDD-UHFFFAOYSA-N tetramethyl orthosilicate Chemical compound CO[Si](OC)(OC)OC LFQCEHFDDXELDD-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 12
- 230000000717 retained effect Effects 0.000 description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 230000007423 decrease Effects 0.000 description 7
- 239000007789 gas Substances 0.000 description 7
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 230000014759 maintenance of location Effects 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- 239000003365 glass fiber Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229920003257 polycarbosilane Polymers 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 101100481408 Danio rerio tie2 gene Proteins 0.000 description 2
- 101100481410 Mus musculus Tek gene Proteins 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- 125000000217 alkyl group Chemical group 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
- 229910052681 coesite Inorganic materials 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- 239000008096 xylene Substances 0.000 description 2
- 101100366935 Caenorhabditis elegans sto-2 gene Proteins 0.000 description 1
- XHCLAFWTIXFWPH-UHFFFAOYSA-N [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] XHCLAFWTIXFWPH-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- UNTBPXHCXVWYOI-UHFFFAOYSA-O azanium;oxido(dioxo)vanadium Chemical compound [NH4+].[O-][V](=O)=O UNTBPXHCXVWYOI-UHFFFAOYSA-O 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 239000002241 glass-ceramic Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229920000548 poly(silane) polymer Polymers 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 150000004756 silanes Chemical class 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 229910001935 vanadium oxide Inorganic materials 0.000 description 1
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は、排ガス中の窒素酸化物のアンモ方法に関し
、さらに詳しくはシリカ・アルミナ系またはアルミナ系
のセラミックスファイバーの抄紙によって製造されるい
わゆるセラミックスペーパーを基材とする触媒担体の製
造方法に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for removing nitrogen oxides from exhaust gas, and more specifically to a method for removing nitrogen oxides from exhaust gas. The present invention relates to a method for producing a catalyst carrier using paper as a base material.
［従来技術および発明の課題］
従来、基材としてグラスファイバーの集合体や、セラミ
ックスファイバーを抄紙して製造したセラミックスペー
パーを用い、この基材にゾル含浸法でチタニア微粉を分
散状に保持させて担体を得、ついでこの担体にバナジウ
ム酸化物を担持させて脱硝触媒を製造する方法が知られ
ている。こうして得られた触媒の剛性は、グラスファイ
バーやセラミックスファイバーの抄紙時に添加される接
着剤の接着力とゲル化したチタニアのバインダー効果と
によってもたらされる。[Prior art and problems to be solved by the invention] Conventionally, an aggregate of glass fibers or a ceramic paper produced by paper-making ceramic fibers was used as a base material, and titania fine powder was held in a dispersed state in this base material by a sol impregnation method. A method is known in which a denitration catalyst is produced by obtaining a carrier and then supporting vanadium oxide on the carrier. The rigidity of the catalyst thus obtained is brought about by the adhesive force of the adhesive added to the glass fiber or ceramic fiber during paper making and the binder effect of gelled titania.
しかし、グラスファイバーの集合体を基材とする場合に
は、触媒基材の剛性が十分でないため、剛性補強用の金
属支持板を基材に添わせる必要がある。他方、セラミッ
クスペーパーを基材とする場合には、接着剤の添加量は
セラミックスペーパーが紙としての機能を損わない程度
に制限されているため、接着剤による剛性効果はほとん
ど生じておらず、剛性はもっぱらチタニアのバインダー
効果に依存している。しかし、ゲル化チタニアの機械的
強度は比較的低いので、これだけでは十分な触媒剛性は
得られない。However, when an aggregate of glass fibers is used as a base material, since the rigidity of the catalyst base material is insufficient, it is necessary to attach a metal support plate to the base material for reinforcement of rigidity. On the other hand, when ceramic paper is used as a base material, the amount of adhesive added is limited to an extent that does not impair the function of the ceramic paper as paper, so the adhesive has almost no stiffening effect. Stiffness relies solely on the binder effect of titania. However, since the mechanical strength of gelled titania is relatively low, this alone cannot provide sufficient catalyst rigidity.
この発明は、上記の如き実情に鑑み、十分な剛性を有す
るセラミックスペーパー製触媒担体の製造方法を提供す
ることを目的とする。In view of the above-mentioned circumstances, it is an object of the present invention to provide a method for manufacturing a ceramic paper catalyst carrier having sufficient rigidity.
［課題の解決手段］
この発明による方法は、セラミックスファイバーの抄紙
によって製造されるセラミックスペーパーにチタニアゾ
ルを．含浸させて乾燥ないし焼威して担体を得るに当た
り、チタニアゾルの含浸乾燥前に同ペーパーに有機シラ
ン化合物を含浸させて加熱処理することを特徴とする、
セラミックスペーパー製触媒担体の製造方法である。[Means for Solving the Problems] The method according to the present invention involves applying titania sol to ceramic paper produced by paper making using ceramic fibers. When impregnating and drying or baking to obtain a carrier, the paper is impregnated with an organic silane compound and heat treated before impregnating and drying with titania sol,
This is a method for manufacturing a catalyst carrier made of ceramic paper.
セラミックスファイバーの代表例は、シリカ・アルミナ
系ファイバー、アルミナ系ファイバーなどである。Typical examples of ceramic fibers include silica/alumina fibers and alumina fibers.
有機シラン化合物としては、メチルシリケート、エチル
シリケートなどのアルキルシリケ−？や、これらアルキ
ルシリケートのボリマーボリ力ルボシランなどが使用さ
れる。アルキルシリケートは一般式Ｓ ｉ （ＯＲ）４
で示され（式中、Ｒはメチル、エチルなどのアルキル基
を意味する）、加熱処理により耐熱性に優れたＳｉＯ■
またはＳｉＣに分解される。Examples of organic silane compounds include alkyl silicates such as methyl silicate and ethyl silicate. and polymers of these alkyl silicates, polysilanes, etc. are used. Alkyl silicate has the general formula S i (OR)4
(in the formula, R means an alkyl group such as methyl or ethyl), and has excellent heat resistance through heat treatment.
Or decomposed into SiC.
また、アルキルシリケートのボリマーは一般式
ＯＲ
（ＲＯ）３ Ｓ ｉ ｛− Ｏ−Ｓ ｉ −＋ ｎ Ｏ
ＲＯＲ
で示され、加熱処理によってやはりシリカになる。 ま
た、ポリ力ルボシランは下記一般式のモノマー Ｒ
ＨＯＯＣ−Ｓ ｉ −ＯＨ
（Ｒはアルキル）
Ｒ
を触媒の存在下に重合したものであって、一般式
Ｒ ＯＲ
１Ｉ
ＨＯＯＣ −イ Ｓ ｉ −０−Ｃ ＋ｌｌＳ
ｉ ＯＨＲ Ｒ
で示される。In addition, the polymer of alkyl silicate has the general formula
OR (RO)3 S i {- O-S i −+ n O
It is represented by ROR and also becomes silica upon heat treatment. In addition, polycarbosilane is obtained by polymerizing the monomer R HOOC-S i -OH (R is alkyl) R of the following general formula in the presence of a catalyst, and has the general formula
R OR 1I HOOC -i S i -0-C +llS
i OHR R
It is indicated by.
有機シラン化合物の含浸後の加熱処理は、好ましくは約
４００〜４５０℃の温度で１〜３時間程度行なわれる。The heat treatment after impregnation with the organic silane compound is preferably carried out at a temperature of about 400 to 450°C for about 1 to 3 hours.
有機セラミックスペーパーに有機シラン化合物を含浸さ
せると、セラミックスペーパーの空隙率が低下し、チタ
ニアの吸着保持量が減少する。その結果、活性金属の担
持量が減少し、触媒の脱硝活性が低下する（後述する実
施例２参照）。したがって、有機シラン化合物の保持量
は、チタニアの保持量の減少が無視でき、触媒活性の低
下が認められない程度である必要があり、セラミックス
ペーパーｍ２当り好ましくは約３０ｇ以下（Ｓｉｎ２と
して）である。When organic ceramic paper is impregnated with an organic silane compound, the porosity of the ceramic paper decreases, and the amount of adsorption and retention of titania decreases. As a result, the amount of active metal supported decreases, and the denitrification activity of the catalyst decreases (see Example 2 described below). Therefore, the amount of the organic silane compound retained must be such that the decrease in the amount of titania retained is negligible and no decrease in catalytic activity is observed, and is preferably about 30 g or less (as Sin2) per m2 of ceramic paper. .
活性金属の代表例は、バナジウム、タングステン、これ
ら金属の酸化物などである。ただし、これらは限定的な
ものではない。Typical examples of active metals include vanadium, tungsten, and oxides of these metals. However, these are not limited.
Ｃ作 用コ
この発明の触媒担体の製造方法によれば、セラミックス
ペーパーにチタニアゾルを含浸させて乾燥させる前に、
予め同ペーパーに有機シラン化合物を含浸させて加熱処
理するので、添付の第１図に示すように、有機シラン化
合物の加熱処理生戊物（１）のバインダー効果によって
、セラミックスペーパーのファイバー（２）どうしが強
固に固着される。According to the method for producing a catalyst carrier of the present invention, before impregnating ceramic paper with titania sol and drying it,
Since the paper is impregnated with an organic silane compound and heat-treated in advance, the fibers of the ceramic paper (2) are formed by the binder effect of the heat-treated raw material (1) of the organic silane compound, as shown in the attached Figure 1. They are firmly attached to each other.
その結果、セラミックスペーパー製触媒基材の剛性が大
幅に向上せられる。As a result, the rigidity of the ceramic paper catalyst base material is significantly improved.
［実 施 例］
つぎに、この発明の触媒製造方法を以下の実施例によっ
て具体的に説明する。[Examples] Next, the method for producing a catalyst of the present invention will be specifically explained with reference to the following examples.
実施例Ｉ
Ｓｉｎ２含有量が異なる複数のエチルシリヶート溶液に
それぞれセラミックスペーパーを浸漬し、各ペーパーを
溶液から取り出した後、温？４００℃で３時間加熱した
。Example I Ceramic paper was immersed in a plurality of ethyl silicate solutions having different Sin2 contents, and after each paper was taken out from the solution, it was heated to a warm temperature. It was heated at 400°C for 3 hours.
ついで、ＴｉＯ２含有ｍ３５ｖｔ％のチタニアゾルに各
ベーバーをそれぞれ浸漬し、ゾルから取り出したペーパ
ーを温度１５０℃で１時間乾燥した後、温度３００℃で
１時間焼成した。こうして得られた担体の剛性を引張り
試験によって調べた。Next, each barber was immersed in a titania sol containing m35 vt% of TiO2, and the paper taken out from the sol was dried at a temperature of 150°C for 1 hour, and then fired at a temperature of 300°C for 1 hour. The rigidity of the carrier thus obtained was examined by a tensile test.
引張り強度（ｋｇｆ／ａｎ’） − （破断強度）／（
セラミックスベーバーの断面積）
また、エチルシリケート溶液の代わりに、ポリ力ルボシ
ラン粉末のキシレン溶液を用い、その他の工程を上記と
同様にして、得られた担体の引張り強度を求めた。Tensile strength (kgf/an') - (breaking strength)/(
(Cross-sectional Area of Ceramic Barber) In addition, a xylene solution of polycarbosilane powder was used instead of the ethyl silicate solution, and the other steps were the same as above, and the tensile strength of the obtained carrier was determined.
さらに、エチルシリケート溶液を用いる含浸工程を省き
、その他の工程を上記と同じく・し、得られた担体の引
張り強度を求めた。Furthermore, the tensile strength of the obtained carrier was determined by omitting the impregnation step using an ethyl silicate solution and performing the other steps in the same manner as above.
こうして得られた各担体について、ＳｉＯ■およびＴｉ
Ｏ２保持量と引張り強度との関係を第２図のグラフに示
す。同グラフから明らかなように、チタニアゾルの含漫
の前に有機シラン化合物を含浸し加熱処理した場合、引
張り強度が大幅に向上する。For each support thus obtained, SiO■ and Ti
The graph in FIG. 2 shows the relationship between O2 retention and tensile strength. As is clear from the graph, when impregnated with an organic silane compound and heat-treated before impregnation with titania sol, the tensile strength is significantly improved.
実施例２
Ｓ ｉ Ｏ２含有量が異なる複数のエチルシリケート溶
液にそれぞれセラミックスベーバーを浸漬し、各ペーパ
ーを溶液から取り出した後、温度１１０℃で１時間乾燥
した。Example 2 A ceramic barber was immersed in a plurality of ethyl silicate solutions having different S i O 2 contents, each paper was taken out from the solution, and then dried at a temperature of 110° C. for 1 hour.
ツイで、ＴｉＯ２含有ｆｆｉ３５ｗｔ％のチタニアゾル
に各ペーパーをそれぞれ浸漬し、ゾルから取り出したペ
ーパーを温度１１０℃で１時間焼成した。こうして得ら
れた各担体のＴｉｏ２保持量を調べた。Each paper was immersed in a titania sol containing TiO2 and ffi 35 wt%, and the paper taken out from the sol was fired at a temperature of 110° C. for 1 hour. The amount of Tio2 retained in each of the carriers thus obtained was investigated.
また、エチルシリケート溶液の代わりに、ポリカルボシ
ラン粉末のキシレン溶液を用い、その他の工程を上記と
同じくし、得られた担体のＴ ｉ Ｏ２保持量を調べた
。Further, a xylene solution of polycarbosilane powder was used instead of the ethylsilicate solution, and the other steps were the same as above, and the amount of TiO2 retained in the obtained carrier was investigated.
こうして得られた各担体についてＳｉＯ２保持量とＴ
ｉ ０２保持量との関係を第３図のグラフに示す。同グ
ラフから明らかなように、ＳｔＯ２保持量が増大すると
、Ｔｉｅ２保持量が低下する。The amount of SiO2 retained and T of each support obtained in this way
The relationship with the amount of i02 retained is shown in the graph of FIG. As is clear from the graph, as the StO2 retention increases, the Tie2 retention decreases.
実施例３
ＳｉＯ２含有量が異なる複数のエチルシリケート溶液に
それぞれセラミックスベーバーを浸漬し、各ペーパーを
溶液から取り出した後、温度４００℃で３時間加熱した
。Example 3 A ceramic barber was immersed in a plurality of ethyl silicate solutions having different SiO2 contents, and after each paper was taken out from the solution, it was heated at a temperature of 400° C. for 3 hours.
ついで、Ｔｉｅ２含有ｊｌ３５ｗｔ％のチタニアゾルに
各ペーパーをそれぞれ浸漬し、ゾルから取り出したペー
パーを温度１５０℃で１時間乾燥した後、温度３００℃
で１時間焼成した。Next, each paper was immersed in a 35 wt% titania sol containing Tie2, and the paper taken out from the sol was dried at a temperature of 150°C for 1 hour, and then dried at a temperature of 300°C.
Baked for 1 hour.
こうして得られた担体を３０℃のメタバナジン酸アンモ
ニウム飽和水溶液に３時間浸漬し、担体にバナジウム分
を吸着担持させた。ついで、溶液から取り出した担体を
、温度１１０℃で１時間乾燥しさらに温度３００℃で１
時間焼成した。 こうして得られた触媒について、下記
の試験条件で、ガス温度１５０℃、２００℃および３０
０℃における脱硝率を求めた。The carrier thus obtained was immersed in a saturated aqueous solution of ammonium metavanadate at 30° C. for 3 hours to adsorb and carry vanadium on the carrier. Next, the carrier taken out from the solution was dried at a temperature of 110°C for 1 hour, and further dried at a temperature of 300°C for 1 hour.
Baked for an hour. The catalyst thus obtained was tested under the following test conditions at gas temperatures of 150°C, 200°C and 30°C.
The denitrification rate at 0°C was determined.
試験条件：触媒の表面積当たりの通過ガス量−４３ｍ／
時
？口ＮＯｘ−５０ｐｐｍ
入口Ｎ Ｈ ｉ ＝ ６ ０ ｐ ｐｍＯ■ − １
５％
Ｈ２ ０−１０％
測定した結果を第４図のグラフに示す。同グラフから明
らかなように、この発明によって得られた触媒は、特に
ガス温度３００℃において高い脱硝活性を示す。Test conditions: Passing gas amount per surface area of catalyst - 43 m/
Time? Inlet NOx - 50ppm Inlet N H i = 6 0 ppmO - 1
5% H2 0-10% The measured results are shown in the graph of FIG. As is clear from the graph, the catalyst obtained by the present invention exhibits high denitrification activity particularly at a gas temperature of 300°C.
［発明の効果］
この発明の触媒担体の製造方法によれば、セラミックス
ペーパーにチタニアゾルを含浸させて乾燥させる前に、
予め同ペーパーに有機シラン化合物を含浸させて加熱処
理するので、有機シラン化合物の加熱処理生成物のバイ
ンダー効果によって、セラミックスベーバーのファイバ
ーどうしを強固に固着させることができ、その結果セラ
ミックスペーパー製触媒基材の剛性を大幅に向上させる
ことができる。[Effects of the Invention] According to the method for producing a catalyst carrier of the present invention, before impregnating ceramic paper with titania sol and drying it,
Since the paper is impregnated with an organic silane compound and heat-treated in advance, the binder effect of the heat-treated product of the organic silane compound makes it possible to firmly bond the fibers of the ceramic paper to each other, resulting in a ceramic paper catalyst. The rigidity of the base material can be significantly improved.
そのため、波形・平片コンポジットボードのような実用
形態において使用中の触媒の収縮を防止することができ
、また高流速のガス流中に触媒を曝しても触媒のフラッ
タリングが生じるのを防止することができる上に、ガス
中に存在するダストによる触媒の破損ないし摩耗も防止
することができる。This prevents shrinkage of the catalyst during use in practical configurations such as corrugated and flat composite boards, and also prevents catalyst flutter when exposed to high-velocity gas streams. In addition, it is possible to prevent damage or wear of the catalyst due to dust present in the gas.
第１図はセラミックスファイバーの固着状態を示す概略
図であり、第２図はＳｉｎ２およびＴｉＯ２の保持量と
引張り強度との関係を示すグラフであり、第３図はＳｉ
ｎ．保持量とＴｉＯ２保持量の関係を示すグラフであり
、第４図はＳｉｎ２保持量と脱硝率の関係を示すグラフ
である。FIG. 1 is a schematic diagram showing the fixed state of ceramic fibers, FIG. 2 is a graph showing the relationship between the retained amounts of Sin2 and TiO2 and tensile strength, and FIG.
n. FIG. 4 is a graph showing the relationship between the retained amount and the TiO2 retained amount, and FIG. 4 is a graph showing the relationship between the Sin2 retained amount and the denitrification rate.
Claims (1)
ミックスペーパーにチタニアゾルを含浸させて乾燥ない
し焼成して担体を得るに当たり、チタニアゾルの含浸乾
燥前に同ペーパーに有機シラン化合物を含浸させて加熱
処理することを特徴とする、セラミックスペーパー製触
媒担体の製造方法。Ceramic paper produced by ceramic fiber papermaking is impregnated with titania sol and dried or fired to obtain a carrier, and the paper is characterized by being impregnated with an organic silane compound and heat treated before being impregnated with titania sol and dried. , a method for producing a catalyst carrier made of ceramic paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1308391A JPH03169350A (en) | 1989-11-27 | 1989-11-27 | Production of catalyst carrier made of ceramic paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1308391A JPH03169350A (en) | 1989-11-27 | 1989-11-27 | Production of catalyst carrier made of ceramic paper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03169350A true JPH03169350A (en) | 1991-07-23 |
Family
ID=17980498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1308391A Pending JPH03169350A (en) | 1989-11-27 | 1989-11-27 | Production of catalyst carrier made of ceramic paper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03169350A (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 |
-
1989
- 1989-11-27 JP JP1308391A patent/JPH03169350A/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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