JPS62225247A - Perovskite type oxidation catalyst - Google Patents
Perovskite type oxidation catalystInfo
- Publication number
- JPS62225247A JPS62225247A JP61066332A JP6633286A JPS62225247A JP S62225247 A JPS62225247 A JP S62225247A JP 61066332 A JP61066332 A JP 61066332A JP 6633286 A JP6633286 A JP 6633286A JP S62225247 A JPS62225247 A JP S62225247A
- Authority
- JP
- Japan
- Prior art keywords
- catalyst
- perovskite type
- perovskite
- composite oxide
- type composite
- 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
- 239000003054 catalyst Substances 0.000 title claims abstract description 33
- 230000003647 oxidation Effects 0.000 title claims abstract description 7
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 12
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000002131 composite material Substances 0.000 claims abstract description 9
- 229910052878 cordierite Inorganic materials 0.000 claims abstract description 8
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 8
- 239000003779 heat-resistant material Substances 0.000 claims abstract description 7
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 6
- 239000010941 cobalt Substances 0.000 claims abstract description 6
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims abstract description 4
- 150000001342 alkaline earth metals Chemical class 0.000 claims abstract description 4
- 229910052712 strontium Inorganic materials 0.000 claims abstract description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract 2
- 229910052791 calcium Inorganic materials 0.000 claims abstract 2
- 239000011575 calcium Substances 0.000 claims abstract 2
- 239000000919 ceramic Substances 0.000 claims abstract 2
- 239000004744 fabric Substances 0.000 claims abstract 2
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 claims abstract 2
- 239000013078 crystal Substances 0.000 abstract description 4
- 238000000151 deposition Methods 0.000 abstract 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 10
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 239000000843 powder Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 5
- 230000010718 Oxidation Activity Effects 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 229910052759 nickel Inorganic materials 0.000 description 5
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 5
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- -1 platinum group metals Chemical class 0.000 description 4
- 229910052723 transition metal Inorganic materials 0.000 description 4
- 229910002651 NO3 Inorganic materials 0.000 description 3
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 3
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 3
- 150000003624 transition metals Chemical class 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000010953 base metal Substances 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- CRHLEZORXKQUEI-UHFFFAOYSA-N dialuminum;cobalt(2+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Al+3].[Co+2].[Co+2] CRHLEZORXKQUEI-UHFFFAOYSA-N 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 229910052703 rhodium Inorganic materials 0.000 description 2
- 239000010948 rhodium Substances 0.000 description 2
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- 150000001242 acetic acid derivatives Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- MVFCKEFYUDZOCX-UHFFFAOYSA-N iron(2+);dinitrate Chemical compound [Fe+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MVFCKEFYUDZOCX-UHFFFAOYSA-N 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910021332 silicide Inorganic materials 0.000 description 1
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は各種燃焼器から排出される未燃の炭化水素、−
酸化炭素を完全燃焼し炭酸ガスと水にする酸化触媒に関
するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to unburned hydrocarbons discharged from various combustors, -
This relates to an oxidation catalyst that completely burns carbon oxide and converts it into carbon dioxide and water.
従来の技術
一般に未燃の炭化水素を空気の存在下、炭酸ガスと水蒸
気に完全酸化させる酸化触媒については白金、パラジウ
ム、ロジウム等の白金族が最も活性が高い。このためア
ルミナ、シリカ等の各種担体に担持させた白金族系触媒
が酸化触媒として各種燃焼器に広く使用されている。一
方、コバルト、ニッケル、鉄等のいわゆる卑金属につい
ては単独の金属酸化物としてよりも、最近では各種複合
酸化物が検討されている。特にペロブスカイト型の結晶
構造をもったものが活性が高いとされ注目されている。BACKGROUND OF THE INVENTION In general, platinum group metals such as platinum, palladium, and rhodium have the highest activity as oxidation catalysts that completely oxidize unburned hydrocarbons into carbon dioxide and water vapor in the presence of air. For this reason, platinum group catalysts supported on various carriers such as alumina and silica are widely used as oxidation catalysts in various combustors. On the other hand, for so-called base metals such as cobalt, nickel, and iron, various composite oxides have recently been studied rather than individual metal oxides. In particular, those with a perovskite-type crystal structure are attracting attention because they are said to have high activity.
（例えば中村、御園生ら、口止、１９８０．１６７９
）発明が解決しようとする問題点
白金、パラジウム、ロジウム等の白金族はそれ自体、酸
化活性が高く、５００°Ｃ以下の温度での使用では問題
がないが、５００°Ｃ以上の温度、特に７００〜８００
°Ｃ以上の温度で使用すると、シンタリングと称してい
る担持金属の粒子径が大きくなり、活性が低下するとい
う熱的劣化の問題がある。このため耐熱性を上げる各種
の方法が提案されているが十分な結果は得られていない
。さらに白金族はコストが高いと共に価格変動の巾が大
きく安定供給の面でも問題がある。一方、ニッケル、コ
バルト、鉄等のいわゆる卑金属単独の酸化物では酸化活
性が低い。さらに耐熱性が低く実使用には至っていない
。最近結晶構造式ＡＢＯ３で表わされるペロプスカイト
型構造を有する複合酸化物が酸化活性が高く、耐熱性が
高いことが報告され注目を集めている。特にＡサイトを
ランタン、ネオジウム等の希土類でＢサイトをコバルト
、ニッケル、鉄等の遷移金属で構成したものが酸化活性
が高いとされ各種研究されている。これらはいづれも、
酢酸塩、硝酸塩等の各種塩を世論比で混合した溶液を蒸
発あるいは沈澱させた後焼成しペロプスカイト型構造を
有する触媒粉末を作製したものである。実使用にはこの
触媒粉末をアルミナゾル、シリカゾル等と一諸に混合し
たものをコージライト、アルミナ、シリカ、ムライト等
の耐熱材料をハニカム等に成型したものに担持し、触媒
としていた。この為触媒としては常に剥離の問題がある
と共に触媒活性の点からもバインダとして添加したアル
ミナゾル、シリカゾルが触媒粉末を遮蔽し活性が低下す
るという問題あるいは粉末法では触媒担体の表面積が有
効に利用出来ず比表面積が小さいものしか得られないと
いう問題があった。この為、これらの問題を解決する為
触媒担体上で溶液から直接比表面積の高い微粒子のペロ
ブスカイト型結晶構造を作製する検討を行った結果次の
ような問題点が明らかとなった。即ちペロプスカイト構
造を作るには少くとも７００°Ｃ以上の温度で焼成する
ことが必要であるがこのような温度条件ではむしろ担体
と担持金属の成分が反応し望みのペロプスカイト型構造
が得られないという問題がある。例えばＢサイトの遷移
金属としてコバルト、あるいはニッケルを用いた場合、
担体としてアルミナを用いた場合にはアルミン酸コバル
ト（ＣｏＡＩ２０４）、アルミン酸ニッケル（ＮｉＡＩ
２０４）を生成し、目的とするペロプスカイトが生成し
ないという問題がある。本発明はこのように直接担持法
により高活性なペロプスカイト型触媒を作製する際の問
題点を解決しようとするものである。(For example, Nakamura, Misono et al., Kusudome, 1980.1679
) Problems to be solved by the invention Platinum group metals such as platinum, palladium, and rhodium themselves have high oxidation activity, and there is no problem when used at temperatures below 500°C, but when used at temperatures above 500°C, especially 700-800
When used at temperatures above .degree. C., there is a problem of thermal deterioration, which is called sintering, in which the particle size of the supported metal increases and the activity decreases. For this reason, various methods for increasing heat resistance have been proposed, but no satisfactory results have been obtained. Furthermore, platinum group metals are expensive, have large price fluctuations, and have problems in terms of stable supply. On the other hand, oxides of so-called base metals alone, such as nickel, cobalt, and iron, have low oxidation activity. Furthermore, it has low heat resistance and has not been put into practical use. Recently, it has been reported that a composite oxide having a perovskite structure represented by the crystal structure formula ABO3 has high oxidation activity and high heat resistance, and has attracted attention. In particular, materials in which the A site is composed of a rare earth such as lanthanum or neodymium and the B site is composed of a transition metal such as cobalt, nickel, or iron have been found to have high oxidation activity, and various studies have been conducted. These are all
A catalyst powder having a perovskite structure is produced by evaporating or precipitating a solution of various salts such as acetates and nitrates mixed at the same ratio, and then calcining the solution. In actual use, this catalyst powder was mixed with alumina sol, silica sol, etc. and supported on a heat-resistant material such as cordierite, alumina, silica, mullite, etc. formed into a honeycomb shape to form a catalyst. For this reason, there is always the problem of peeling off as a catalyst, and from the viewpoint of catalytic activity, the alumina sol or silica sol added as a binder blocks the catalyst powder, resulting in a decrease in activity.In addition, in the powder method, the surface area of the catalyst carrier cannot be used effectively. However, there was a problem in that only those with a small specific surface area could be obtained. Therefore, in order to solve these problems, we conducted a study to create a perovskite-type crystal structure of fine particles with a high specific surface area directly from a solution on a catalyst carrier, and as a result, the following problems became clear. That is, in order to create a perovskite structure, it is necessary to sinter at a temperature of at least 700°C, but under such temperature conditions, the components of the support and the supported metal will react and the desired perovskite structure will not be obtained. The problem is that there is no. For example, when cobalt or nickel is used as the transition metal at the B site,
When alumina is used as a carrier, cobalt aluminate (CoAI204), nickel aluminate (NiAI
204) and the desired perovskite is not produced. The present invention is thus intended to solve the problems encountered in producing highly active perovskite catalysts by the direct support method.
問題点を解決するための手段
このように直接担持にまつわる問題を解決する為に、ア
ルミナ、シリカ、コージライト等の無機耐熱材料を母材
とする触媒担体に鉄酸化物をプレコートし、その上にペ
ロブスカイト型構造を有する複合酸化物を担持するとい
う構成を採用した。Means to Solve the Problems In order to solve the problems associated with direct support, iron oxide is pre-coated on a catalyst support whose base material is an inorganic heat-resistant material such as alumina, silica, cordierite, etc. A structure in which a complex oxide with a perovskite structure is supported was adopted.
作 用
アルミナ、シリカ、コージライト等の無機耐熱材料を母
材とする触媒担体上に鉄の酸化物をプレコートするとペ
ロブスカイト構造を構成しようとする遷移金属元素と担
体との相互作用がなく活性の高いペロプスカイト型複合
酸化物を触媒担体上に作製することが出来た。Function: When iron oxide is precoated on a catalyst carrier made of an inorganic heat-resistant material such as alumina, silica, cordierite, etc., there is no interaction between the transition metal elements that try to form a perovskite structure and the carrier, resulting in high activity. We were able to fabricate a perovskite-type composite oxide on a catalyst carrier.
実施例
以下本発明を用いて調製した触媒の実施例について述べ
る。Examples Examples of catalysts prepared using the present invention will be described below.
゛（実施例１）
コージライト１ｙに硝酸鉄の水溶液（０，２ｙ／１００
ｍｆ）を２５ぜ注入し、−昼夜放置した後、湯浴により
乾燥した。乾燥後、４００℃で分解後、９００°Ｃで１
時間焼成した。焼成後ＳｒとＣＯのモル比が１＝１にな
るように混合した硝酸塩溶液に含浸、乾燥を繰り返し全
体として８Ｗ％担持した後、空気中８５０°Ｃ５時間焼
成し触媒とした。(Example 1) An aqueous solution of iron nitrate (0.2y/100
After injecting 25 times of mf) and leaving it for day and night, it was dried in a hot water bath. After drying, after decomposition at 400℃, 1 at 900℃
Baked for an hour. After calcination, it was impregnated with a nitrate solution mixed so that the molar ratio of Sr and CO was 1=1, and dried to obtain a total loading of 8 W%, and then calcined in air at 850° C. for 5 hours to obtain a catalyst.
（実施例２）
実施例１と同様傾コージライト担体の上に鉄の酸化物を
７Ｗ％担持した後、ＭｇとＣＯのモル比が１：１になる
ように混合した硝酸塩溶液に含浸、乾燥を繰り返し全体
として８Ｗ％担持した後、空気中８５０°Ｃ５時間焼成
し触媒とした。(Example 2) As in Example 1, 7 W% of iron oxide was supported on a tilted cordierite support, then impregnated with a nitrate solution containing Mg and CO mixed at a molar ratio of 1:1, and dried. After repeating this to support a total of 8 W%, the catalyst was calcined at 850° C. for 5 hours in air to obtain a catalyst.
上記実施例１の触媒を用いてプロパンの酸化活性の検討
を行った所、プレコートしなかった触媒に比較し重量当
りの反応速度で約２倍の活性が得られた。When the propane oxidation activity was investigated using the catalyst of Example 1, it was found that the reaction rate per weight was about twice as high as that of the non-precoated catalyst.
発明の効果
以上のように本発明によりコージライト、アルミナ、シ
リカ等無機耐熱材料を母材とする触媒担体にプレコート
として鉄の酸化物を担持後ペロプスカイト型複合酸化物
を合成するように量論比を調節した酢酸塩、硝酸塩等の
溶液を含浸、燃成して酸化触媒を調製した結果、次のよ
うな効果が得られた。Effects of the Invention As described above, according to the present invention, iron oxide is precoated on a catalyst carrier having an inorganic heat-resistant material such as cordierite, alumina, or silica as a base material, and then a perovskite-type composite oxide is synthesized. As a result of preparing an oxidation catalyst by impregnating and burning a solution of acetate, nitrate, etc. with adjusted ratios, the following effects were obtained.
プレコートとしての鉄元素はコージライト、アルミナと
反応し一部スピネル化合物を作っているものと思われる
が、大部分は鉄の酸化物として存在する。この結果、そ
の上にアルカリ土類金属と遷移金属により完全なペロブ
スカイト構造を作ることが出来る。さらに担体としてシ
リカを用いた場合にはプレコートしないとアルカリ土類
金属と反応しケイ素化物を作るが、鉄をプレコートする
とそのようなことがなくペロプスカイト構造を得ること
が出来る。このように直接担持法により作製することに
より従来の粉末法のように剥離の問題もなく、あるいは
助材として使用していたアルミナゾル、シリカゾルによ
る触媒粉末の遮蔽という問題もなく高活性な触媒を得る
ことが出来た。It is thought that the iron element as a precoat reacts with cordierite and alumina to partially form a spinel compound, but the majority exists as iron oxide. As a result, a complete perovskite structure can be created on top of the alkaline earth metal and transition metal. Furthermore, when silica is used as a carrier, if it is not precoated, it will react with the alkaline earth metal to form a silicide, but if iron is precoated, this will not occur and a perovskite structure can be obtained. By using this direct support method, a highly active catalyst can be obtained without the problems of peeling as with conventional powder methods, or of shielding the catalyst powder with alumina sol or silica sol used as auxiliary materials. I was able to do it.
Claims (1)
ニカム状、発泡セラミック状あるいは布状に構成したも
のを触媒担体とし、前記担体上に鉄元素を１〜１５重量
パーセントの範囲で担持した後、結晶構造式ＡＢＯ＿３
であらわされるペロブスカイト型複合酸化物をＡサイト
をストロンチウム、カルシウム等のアルカリ土類金属か
ら少なくとも一種の元素を選択し、Ｂサイトをコバルト
元素で構成し、ペロブスカイト型複合酸化物としての担
持量が１〜１５重量パーセントの範囲で担持する構成と
したペロブスカイト型酸化触媒。The catalyst carrier is made of an inorganic heat-resistant material such as alumina, silica, cordierite, etc. in the shape of a honeycomb, foamed ceramic, or cloth. After supporting the iron element in a range of 1 to 15% by weight on the carrier, Structural formula ABO_3
The perovskite type composite oxide represented by: A site is composed of at least one element selected from alkaline earth metals such as strontium and calcium, B site is composed of cobalt element, and the supported amount as perovskite type composite oxide is 1. A perovskite-type oxidation catalyst configured to be supported in a range of 15% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61066332A JPH0710351B2 (en) | 1986-03-25 | 1986-03-25 | Perovskite type oxidation catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61066332A JPH0710351B2 (en) | 1986-03-25 | 1986-03-25 | Perovskite type oxidation catalyst |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62225247A true JPS62225247A (en) | 1987-10-03 |
| JPH0710351B2 JPH0710351B2 (en) | 1995-02-08 |
Family
ID=13312786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61066332A Expired - Fee Related JPH0710351B2 (en) | 1986-03-25 | 1986-03-25 | Perovskite type oxidation catalyst |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0710351B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103933991A (en) * | 2014-04-27 | 2014-07-23 | 东北石油大学 | Perovskite type composite oxide catalyst for producing controllable synthesis gas |
| CN103962142A (en) * | 2014-04-27 | 2014-08-06 | 东北石油大学 | Preparation method for core-shell perovskite-type catalyst for preparing methanol through methane |
-
1986
- 1986-03-25 JP JP61066332A patent/JPH0710351B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103933991A (en) * | 2014-04-27 | 2014-07-23 | 东北石油大学 | Perovskite type composite oxide catalyst for producing controllable synthesis gas |
| CN103962142A (en) * | 2014-04-27 | 2014-08-06 | 东北石油大学 | Preparation method for core-shell perovskite-type catalyst for preparing methanol through methane |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0710351B2 (en) | 1995-02-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3858625B2 (en) | Composite oxide and its production method, exhaust gas purification catalyst and its production method | |
| US7622418B2 (en) | Method for producing exhaust gas purifying catalyst | |
| CN101356005B (en) | Catalyst for exhaust gas purification and exhaust gas purification catalyst member | |
| JPH09187649A (en) | Catalytic combustion method including consecutive plural catalytic zone | |
| JPS63162043A (en) | Catalyst for cleaning exhaust gas | |
| JP2004041868A (en) | Exhaust gas purifying catalyst | |
| JPH0586258B2 (en) | ||
| JPS61283348A (en) | Oxidizing catalyst | |
| JPH0368451A (en) | Production of catalyst for purification of exhaust gas | |
| JPH0531367A (en) | Catalyst for exhaust gas purification | |
| JP4771681B2 (en) | Method for producing noble metal-containing heat-resistant oxide | |
| JP2930975B2 (en) | Method for producing combustion catalyst | |
| JP4263542B2 (en) | Method for producing exhaust gas purification catalyst | |
| JPS62221448A (en) | Production of oxidizing catalyst | |
| JPS60238146A (en) | Heat resistant carrier composition | |
| JPH0820054B2 (en) | Catalytic combustion method of combustible gas | |
| JPS62225247A (en) | Perovskite type oxidation catalyst | |
| JPS63305938A (en) | Catalyst for purifying exhaust gas | |
| JP7355775B2 (en) | Exhaust gas purification catalyst | |
| JPS63116742A (en) | Catalyst for purifying exhaust gas | |
| JP2000051700A (en) | Exhaust emission purifying catalyst and its production | |
| JP4203445B2 (en) | K2NiF4 type composite oxide production method, exhaust gas purification catalyst, and production method thereof | |
| JPS6022929A (en) | Heat resistant carrier for catalyst | |
| JP3270072B2 (en) | Combustion catalyst | |
| JPH0653228B2 (en) | Complex oxide catalyst |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |