JPS62187111A - Composite oxide containing cerium and aluminum and its production - Google Patents
Composite oxide containing cerium and aluminum and its productionInfo
- Publication number
- JPS62187111A JPS62187111A JP61026886A JP2688686A JPS62187111A JP S62187111 A JPS62187111 A JP S62187111A JP 61026886 A JP61026886 A JP 61026886A JP 2688686 A JP2688686 A JP 2688686A JP S62187111 A JPS62187111 A JP S62187111A
- Authority
- JP
- Japan
- Prior art keywords
- cerium
- aluminum
- composite oxide
- carbonate
- oxide
- 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
- 239000002131 composite material Substances 0.000 title claims abstract description 23
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 229910052684 Cerium Inorganic materials 0.000 title claims abstract description 12
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 title claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- GHLITDDQOMIBFS-UHFFFAOYSA-H cerium(3+);tricarbonate Chemical compound [Ce+3].[Ce+3].[O-]C([O-])=O.[O-]C([O-])=O.[O-]C([O-])=O GHLITDDQOMIBFS-UHFFFAOYSA-H 0.000 claims abstract description 9
- 238000000862 absorption spectrum Methods 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 238000001035 drying Methods 0.000 claims abstract description 4
- 239000012736 aqueous medium Substances 0.000 claims abstract description 3
- BNGXYYYYKUGPPF-UHFFFAOYSA-M (3-methylphenyl)methyl-triphenylphosphanium;chloride Chemical compound [Cl-].CC1=CC=CC(C[P+](C=2C=CC=CC=2)(C=2C=CC=CC=2)C=2C=CC=CC=2)=C1 BNGXYYYYKUGPPF-UHFFFAOYSA-M 0.000 claims description 5
- 238000010304 firing Methods 0.000 claims 2
- 238000000034 method Methods 0.000 claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 15
- 238000006243 chemical reaction Methods 0.000 abstract description 12
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 abstract description 6
- 239000000203 mixture Substances 0.000 abstract description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 abstract 2
- 229910002651 NO3 Inorganic materials 0.000 abstract 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 abstract 2
- JLDSOYXADOWAKB-UHFFFAOYSA-N aluminium nitrate Chemical compound [Al+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O JLDSOYXADOWAKB-UHFFFAOYSA-N 0.000 abstract 2
- 239000003054 catalyst Substances 0.000 description 10
- 229910000420 cerium oxide Inorganic materials 0.000 description 10
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 9
- 239000007789 gas Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- WLLURKMCNUGIRG-UHFFFAOYSA-N alumane;cerium Chemical compound [AlH3].[Ce] WLLURKMCNUGIRG-UHFFFAOYSA-N 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 229910002091 carbon monoxide Inorganic materials 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 229910002090 carbon oxide Inorganic materials 0.000 description 2
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 description 2
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- -1 that is Chemical compound 0.000 description 2
- XNDZQQSKSQTQQD-UHFFFAOYSA-N 3-methylcyclohex-2-en-1-ol Chemical compound CC1=CC(O)CCC1 XNDZQQSKSQTQQD-UHFFFAOYSA-N 0.000 description 1
- 101100356682 Caenorhabditis elegans rho-1 gene Proteins 0.000 description 1
- 150000000703 Cerium Chemical class 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- QEAXKZWTRUOBLY-UHFFFAOYSA-K cerium(3+) hydrogen carbonate Chemical compound [Ce+3].OC([O-])=O.OC([O-])=O.OC([O-])=O QEAXKZWTRUOBLY-UHFFFAOYSA-K 0.000 description 1
- DRVWBEJJZZTIGJ-UHFFFAOYSA-N cerium(3+);oxygen(2-) Chemical class [O-2].[O-2].[O-2].[Ce+3].[Ce+3] DRVWBEJJZZTIGJ-UHFFFAOYSA-N 0.000 description 1
- UNJPQTDTZAKTFK-UHFFFAOYSA-K cerium(iii) hydroxide Chemical compound [OH-].[OH-].[OH-].[Ce+3] UNJPQTDTZAKTFK-UHFFFAOYSA-K 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 150000004687 hexahydrates Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 150000004689 octahydrates Chemical class 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 150000004685 tetrahydrates Chemical class 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F17/00—Compounds of rare earth metals
- C01F17/30—Compounds containing rare earth metals and at least one element other than a rare earth metal, oxygen or hydrogen, e.g. La4S3Br6
- C01F17/32—Compounds containing rare earth metals and at least one element other than a rare earth metal, oxygen or hydrogen, e.g. La4S3Br6 oxide or hydroxide being the only anion, e.g. NaCeO2 or MgxCayEuO
- C01F17/34—Aluminates, e.g. YAlO3 or Y3-xGdxAl5O12
Abstract
Description
【発明の詳細な説明】
産業上の利用分野：
本発明は新規なセリウムおよびアルミニウムを含有する
複合酸化物およびその製造方法に関する。とくに、本発
明はその赤外線吸収スペクトルにおいて、約１３８０／
ｌ１１−１に特異な吸収ピークを有してなる新規なセリ
ウムおよびアルミニウムを含有する複合酸化物およびそ
の製法を提供するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application: The present invention relates to a novel composite oxide containing cerium and aluminum and a method for producing the same. In particular, the present invention has an infrared absorption spectrum of about 1380/
The present invention provides a novel composite oxide containing cerium and aluminum having a unique absorption peak at 111-1, and a method for producing the same.
この複合酸化物を、自動車排ガス浄化用３元触媒に利用
すると総合的に活性が向上し、特にその水性ガスシフト
反応性能が促進される有利がある。When this composite oxide is used in a three-way catalyst for purifying automobile exhaust gas, it has the advantage of improving overall activity and, in particular, promoting its water gas shift reaction performance.
従来技術：
セリウム酸化物は、そのすぐれた酸素貯蔵能のゆえに、
自動車排ガス浄化用３元触媒の成分として有効に使用さ
れてきている。一般にセリウム酸化物は、自動車排ガス
浄化用３元触媒において、酸素貯蔵効果、水性ガスシフ
ト反応促進効果、貴金属の分散性向上効果、耐熱性向上
効果を持つといわれている。Prior art: Due to its excellent oxygen storage ability, cerium oxide
It has been effectively used as a component of a three-way catalyst for purifying automobile exhaust gas. In general, cerium oxide is said to have an oxygen storage effect, a water gas shift reaction promotion effect, a noble metal dispersibility improvement effect, and a heat resistance improvement effect in a three-way catalyst for automobile exhaust gas purification.
しかしながらこの３元触媒成分としてのセリウム酸化物
使用母はかなり多く、とくに水性ガスシフト反応と関連
する一酸化炭素転化反応促進効果は要求される水準を達
成するのに困難といわれる。However, the use of cerium oxide as a three-way catalyst component is quite common, and it is said that it is difficult to achieve the required level of carbon monoxide conversion reaction promotion effect, particularly in relation to the water gas shift reaction.
目 的 ：
したがって本発明は、新規なセリウムおよびアルミニウ
ムを含有する複合酸化物を提供し、これを３元触媒成分
としての酸化セリウムに代えて使用することにより、す
ぐれて３元浄化能を総合的に向上せしめ、とくにその−
酸化炭素転化能を向上せしめられた触媒を提供すること
を目的とする。Purpose: Therefore, the present invention provides a new composite oxide containing cerium and aluminum, and uses this in place of cerium oxide as a three-way catalyst component, thereby achieving excellent three-way purification performance in a comprehensive manner. In particular, the
An object of the present invention is to provide a catalyst with improved carbon oxide conversion ability.
手 段 ： 本発明の具体的な態様を以下に詳細に説明する。Hand Dan: Specific aspects of the present invention will be explained in detail below.
まず、本発明にかかるセリウムおよびアルミニウム含有
複合酸化物は、セリウムの炭Ｍ塩、すなわち炭酸セリウ
ム、炭酸水素セリウム、およびアルミニウムの硝酸塩、
すなわち硝酸アルミニウムの９水塩、８水塩、６水塩、
４水塩など、を水性媒体たとえば水に溶解あるいは懸濁
させ十分に混合し、濃縮し乾燥し、高温で焼成してえら
れる。First, the cerium and aluminum-containing composite oxide according to the present invention includes cerium carbonate, that is, cerium carbonate, cerium hydrogen carbonate, and aluminum nitrate;
That is, aluminum nitrate nonahydrate, octahydrate, hexahydrate,
It can be obtained by dissolving or suspending a tetrahydrate or the like in an aqueous medium such as water, mixing thoroughly, concentrating and drying, and calcining at a high temperature.
セリウム塩とアルミニウム塩の使用割合は原子比でＣｅ
／Ａｊ＝１〜２０、好ましくは２〜１０の範囲がよい。The usage ratio of cerium salt and aluminum salt is Ce
/Aj=1-20, preferably 2-10.
乾燥は２００℃以下で行ない、焼成は空気中３００〜７
００℃の範囲の温度で実施される。Drying is done at 200℃ or less, and baking is done in air at 300~7℃.
It is carried out at a temperature in the range of 00°C.
かくしてえられたセリウムおよびアルミニウム含有複合
酸化物はその赤外線吸収スペクトルにおいて約１３８０
１−１に吸収ピークを有しており、本発明者らはこれは
水酸基の存在によるものであろうと推定している。The thus obtained composite oxide containing cerium and aluminum has an infrared absorption spectrum of about 1380
It has an absorption peak at 1-1, and the present inventors estimate that this is due to the presence of hydroxyl groups.
又、ｘ＄１回折ではこの複合酸化物は同定できず、遷移
状態を有する中間体の形をなす複合酸化物と考えられる
。Moreover, this composite oxide cannot be identified by x$1 diffraction, and is considered to be a composite oxide in the form of an intermediate having a transition state.
本発明にかかる複合酸化物は、より具体的にはあらかじ
めアルミニウム硝酸塩を溶解せしめた水溶液にセリウム
炭酸塩粉末を混合し十分に混合せしめて上述のとおり調
製される。また脱水および分散混合性を促進するためア
ルコール、たとえばメタノール、プロパツール、ブタノ
ールなど、芳香族炭化水素たとえばベンゼン、トルエン
、キシレンなどを水溶液に添加しておいてもよい。More specifically, the composite oxide according to the present invention is prepared as described above by mixing cerium carbonate powder with an aqueous solution in which aluminum nitrate has been dissolved in advance and thoroughly mixing the mixture. Further, alcohols such as methanol, propatool, butanol, aromatic hydrocarbons such as benzene, toluene, xylene, etc. may be added to the aqueous solution in order to promote dehydration and dispersion miscibility.
かくしてえられる本発明にかかるセリウムおよびアルミ
ニウム含有複合酸化物は、炭酸セリウム、水酸化セリウ
ムなどを焼成して得られるセリウム酸化物および市販の
セリウム酸化物にくらべ、水存在時の一酸化炭素転化反
応促進効果にすぐれることが判明した。The cerium- and aluminum-containing composite oxide of the present invention thus obtained has a higher carbon monoxide conversion reaction in the presence of water than cerium oxide obtained by calcining cerium carbonate, cerium hydroxide, etc. and commercially available cerium oxide. It was found that it has an excellent promoting effect.
以下実施例にて本発明を更に詳細に説明するが、本発明
はこれら実施例のみに限定されるものでないことは言う
までもない。The present invention will be explained in more detail with reference to Examples below, but it goes without saying that the present invention is not limited only to these Examples.
実施例 １
硝酸アルミニウム（ＡＪ ＜ＮＯｓ ）３・９Ｈ２０）
６５．３ｇを溶解した１５０１１ｒ１水溶液と炭酸セリ
ウム粉体＜ｃｅ含有ｆｆｉ：ＣｅＯ２として４７重最％
含有）３１９ｑとを十分に混合し、１３０℃で５時間乾
燥した後、空気中５００℃で１時間焼成し、セリウム−
アルミニウム複合酸化物を調製した。この複合酸化物（
Ｃｅ／Ａ）＝５．０原子比）の赤外線吸収スペクトルは
図−１に示す通りで、水ｌｌｌ基の存在によるものと見
られる吸収ピーク実施例 ２
硝酸アルミニウム（Ａｊ！ （ＮＯｓ ）’３ ・９１
（２０）７７．８ｇを溶解した２８０ｍ水溶液と炭酸セ
リウム（Ｃｅ含有１１ｎ：ＣｅＯ２として４７重ω％含
有）６０８Ｑとを十分に混合し、１３０℃で５時間乾燥
した後、空気中６００℃で１時間焼成して、セリウム−
アルミニウム複合酸化物を調製した。この複合酸化物（
Ｃｅ／Ａ）＝８．０原子比）の赤外線吸収スペクトルは
図−２に示す通りで、水ＭＷの存在によるものと見られ
る吸収ピーク（およそ１３８０ロー１）を有していた。Example 1 Aluminum nitrate (AJ<NOs)3.9H20)
15011r1 aqueous solution in which 65.3g was dissolved and cerium carbonate powder <ce containing ffi: 47% by weight as CeO2
319q (containing)), dried at 130°C for 5 hours, and then calcined in air at 500°C for 1 hour to form a cerium-
An aluminum composite oxide was prepared. This complex oxide (
The infrared absorption spectrum of Aluminum nitrate (Aj! (NOs)'3) is as shown in Figure 1, and the absorption peak is considered to be due to the presence of water groups. 91
(20) A 280m aqueous solution in which 77.8 g of cerium carbonate (Ce-containing 11n: Contains 47 wt ω% as CeO2) 608Q is thoroughly mixed, dried at 130°C for 5 hours, and then heated at 600°C in air for 1 hour. Cerium-
An aluminum composite oxide was prepared. This complex oxide (
The infrared absorption spectrum of Ce/A) = 8.0 atomic ratio is as shown in Figure 2, and it had an absorption peak (approximately 1380 Rho 1) that was considered to be due to the presence of water MW.
実施例 ３
実施例１および２で調製してえられたセリウム−アルミ
ニウム複合酸化物と比較のためのセリウム酸化物（炭酸
セリウムを空気中６００℃で１時間焼成したもの）の性
能比較を、以下に示すような触媒を調製し、水存在時の
一酸化炭素転化反応において行った。Example 3 A performance comparison between the cerium-aluminum composite oxide prepared in Examples 1 and 2 and a comparative cerium oxide (cerium carbonate calcined in air at 600°C for 1 hour) is as follows. A catalyst as shown in was prepared and carried out in a carbon monoxide conversion reaction in the presence of water.
調製された触媒は、横断面が１インチ平方当り約３００
個のガス流通セルを有するハニカム触媒で、触媒１リッ
トル当り、アルミナ９０ｇ、セリウム−アルミニウム複
合酸化物あるいはセリウム酸化物４０ｑ１白金１．２９
ａおよびロジウム０．２１ｇ担持されたものである。The prepared catalyst has a cross section of approximately 300 m
Honeycomb catalyst with 1 gas flow cell, 90 g of alumina, 40 q of cerium-aluminum composite oxide or cerium oxide, 1.29 platinum per liter of catalyst.
a and 0.21 g of rhodium were supported.
（水存在時の一酸化炭素転化反応実験）−酸化炭素（以
下ＣＯとする）０．５％、プロピレン１．２００ｐｐｍ
、−Ｍ化窒索５００ｐｐｎ＋、水素０．１７％、酸素
０．５％、二酸化炭素１４％、水１０％、窒素バランス
からなる反応ガス組成で、水流通時のＣＯ転化率と、水
停止時のＣＯ転化率とを測定し、その差異を調べた。た
だし反応温度は４００℃、空間速度は１００，０００
Ｈｒ−１とし、えられた結果を表−１に示した。(Carbon monoxide conversion reaction experiment in the presence of water) - Carbon oxide (hereinafter referred to as CO) 0.5%, propylene 1.200 ppm
, -M nitriding cable 500ppn+, hydrogen 0.17%, oxygen 0.5%, carbon dioxide 14%, water 10%, nitrogen balance, CO conversion rate when water is flowing and when water is stopped The CO conversion rate was measured and the difference was investigated. However, the reaction temperature is 400℃ and the space velocity is 100,000
Hr-1 and the results obtained are shown in Table-1.
表 −１（反応結果）
以上の結果より、従来のセリウム酸化物に比べ、本発明
で調製したセリウム−アルミニウム複合酸化物は水存在
下のＣＯ転化率を向上させる働きが大きいことがわかる
。つまり、本発明のセリウムおよびアルミニウムを含有
する複合酸化物は、セリウム酸化物に比べ、水性ガスシ
フト反応に対する寄与率が大きい。Table 1 (Reaction Results) The above results show that the cerium-aluminum composite oxide prepared in the present invention has a greater ability to improve the CO conversion rate in the presence of water than conventional cerium oxides. That is, the composite oxide containing cerium and aluminum of the present invention has a larger contribution rate to the water gas shift reaction than cerium oxide.
図−１および２はそれぞれ実施例１および２においてえ
られるセリウム−アルミニウム複合酸化物の赤外線吸収
スペクトルである。Figures 1 and 2 are infrared absorption spectra of the cerium-aluminum composite oxides obtained in Examples 1 and 2, respectively.
Claims (4)
ｃｍ＾−１にピークを有してなることを特徴とするセリ
ウムおよびアルミニウムを含有してなる複合酸化物。(1) In its infrared absorption spectrum, approximately 1380
A composite oxide containing cerium and aluminum, characterized by having a peak at cm^-1.
１〜２０の範囲であることを特徴とする特許請求の範囲
（１）記載の複合酸化物。(2) The atomic ratio of cerium and aluminum is Ce/Al=
1 to 20. The composite oxide according to claim (1), characterized in that the number of oxides is in the range of 1 to 20.
性媒体中で混合し、乾燥し焼成することを特徴とする、
その赤外線吸収スペクトルにおいて、約１３８０ｃｍ＾
１にピークを有してなるセリウムおよびアルミニウムを
含有する複合酸化物の製造方法。(3) A method characterized by mixing cerium carbonate and aluminum nitrate in an aqueous medium, drying and firing,
In its infrared absorption spectrum, it is approximately 1380 cm^
A method for producing a composite oxide containing cerium and aluminum having a peak at 1.
行なわれることを特徴とする特許請求の範囲（３）記載
の方法。(4) The method according to claim (3), characterized in that the firing is carried out in air at a temperature in the range of 300 to 700°C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61026886A JPS62187111A (en) | 1986-02-12 | 1986-02-12 | Composite oxide containing cerium and aluminum and its production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61026886A JPS62187111A (en) | 1986-02-12 | 1986-02-12 | Composite oxide containing cerium and aluminum and its production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62187111A true JPS62187111A (en) | 1987-08-15 |
Family
ID=12205744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61026886A Pending JPS62187111A (en) | 1986-02-12 | 1986-02-12 | Composite oxide containing cerium and aluminum and its production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62187111A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01281145A (en) * | 1987-12-22 | 1989-11-13 | Rhone Poulenc Chim | Catalyst carrier material |
| FR2663319A1 (en) * | 1990-06-13 | 1991-12-20 | Rhone Poulenc Chimie | POROUS MATRIX MATERIAL CONTAINING SECOND ELEMENT IN DISPERSE FORM AND METHOD OF MANUFACTURING THE SAME. |
| JPH08224469A (en) * | 1994-12-19 | 1996-09-03 | Toyota Motor Corp | Highly heat-resistant catalyst carrier, its production, highly heat-resistant catalyst and its production |
| JP2002003207A (en) * | 2000-04-27 | 2002-01-09 | Haldor Topsoe As | Method for production of hydrogen rich gas |
-
1986
- 1986-02-12 JP JP61026886A patent/JPS62187111A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01281145A (en) * | 1987-12-22 | 1989-11-13 | Rhone Poulenc Chim | Catalyst carrier material |
| FR2663319A1 (en) * | 1990-06-13 | 1991-12-20 | Rhone Poulenc Chimie | POROUS MATRIX MATERIAL CONTAINING SECOND ELEMENT IN DISPERSE FORM AND METHOD OF MANUFACTURING THE SAME. |
| JPH08224469A (en) * | 1994-12-19 | 1996-09-03 | Toyota Motor Corp | Highly heat-resistant catalyst carrier, its production, highly heat-resistant catalyst and its production |
| JP2002003207A (en) * | 2000-04-27 | 2002-01-09 | Haldor Topsoe As | Method for production of hydrogen rich gas |
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