JP3117265B2 - Method for producing α, β-unsaturated nitrile - Google Patents
Method for producing α, β-unsaturated nitrileInfo
- Publication number
- JP3117265B2 JP3117265B2 JP04022700A JP2270092A JP3117265B2 JP 3117265 B2 JP3117265 B2 JP 3117265B2 JP 04022700 A JP04022700 A JP 04022700A JP 2270092 A JP2270092 A JP 2270092A JP 3117265 B2 JP3117265 B2 JP 3117265B2
- Authority
- JP
- Japan
- Prior art keywords
- catalyst
- propane
- producing
- acrylonitrile
- ammoxidation
- 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.)
- Expired - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明はプロパンをアンモニ
アと分子状酸素により気相接触アンモ酸化してアクリロ
ニトリルを製造する方法に関する。The present invention relates to a method for producing acrylonitrile by subjecting propane to gas-phase catalytic ammoxidation with ammonia and molecular oxygen.
【０００２】[0002]
【従来の技術】Ｃ3〜Ｃ5パラフィンを気相接触アンモ酸
化して、α、β−不飽和ニトリル類を製造する触媒は従
来数多く提案されている。中でも、プロパンのアンモ酸
化によるアクリロニトリル合成触媒について１９７０年
代から多くの提案が成されている。例えば、ＵＳＰ４８
７９２６４にはＶ−Ｓｂ−Ｏからなる一元系の触媒、Ｕ
ＳＰ４８７７７６４，４８８３８９５にはＶ−Ｐ−Ｏ触
媒（前者触媒）とＢｉ−Ｆｅ−Ｃｒ−Ｍｎ−（Ｎｉ−Ｃ
ｏ／Ｍｇ）−Ｍｏ−Ｏ触媒（後者触媒）の二元系触媒に
よるパラフィンのオレフィンへの酸化脱水素（前者触
媒）とオレフィンのアンモ酸化（後者触媒）の組み合わ
せが提案されている。また、ＵＳＰ４９７８７６４はＣ
ｓ−Ｋ−Ｎｉ−Ｃｏ−Ｆｅ−Ｍｎ−Ｂｉ−Ｃｒ−Ｍｏ−
Ｏからなる一元系の触媒、特開平３−５８９６１にはＢ
ｉ−Ｖ−Ｍｏのシーライト構造をもつ触媒、また、特開
平３−５８９６２にはＧａ／Ｔａ−Ｂｉ−Ｍｏ−Ｏから
なる触媒が提案されている。一般にパラフィンはオレフ
ィンに比べ反応性が低いため、従来の触媒では、オレフ
ィンのアンモ酸化条件でのパラフィンの転化率が低い。
そのため、従来の触媒では、パラフィンのアンモ酸化に
比較的高い反応温度を必要とするため、併発するラジカ
ル反応、目的物である不飽和ニトリルの逐次酸化などに
より、不飽和ニトリルへの選択性が低いという問題があ
った。2. Description of the Related Art There have been proposed many catalysts for producing α, β-unsaturated nitriles by subjecting C 3 -C 5 paraffins to gas phase catalytic ammoxidation. Above all, many proposals have been made on acrylonitrile synthesis catalysts by ammoxidation of propane since the 1970s. For example, USP48
79264 has a one-piece system catalyst of V-Sb-O, U
SP4877774, 4883895 includes a VPO catalyst (former catalyst) and Bi-Fe-Cr-Mn- (Ni-C
A combination of oxidative dehydrogenation of paraffin to olefin by a binary catalyst of (o / Mg) -Mo-O catalyst (the latter catalyst) (the former catalyst) and ammoxidation of the olefin (the latter catalyst) has been proposed. In addition, US Pat.
s-K-Ni-Co-Fe-Mn-Bi-Cr-Mo-
O-based one-piece catalyst, JP-A-3-58961 describes B
A catalyst having an iV-Mo celite structure, and a catalyst comprising Ga / Ta-Bi-Mo-O are proposed in Japanese Patent Application Laid-Open No. 3-58962. In general, paraffins have lower reactivity than olefins, and therefore, conventional catalysts have low paraffin conversion under olefin ammoxidation conditions.
Therefore, in the conventional catalyst, a relatively high reaction temperature is required for the ammoxidation of paraffin, and the selectivity to the unsaturated nitrile is low due to the concurrent radical reaction and the sequential oxidation of the target unsaturated nitrile. There was a problem.
【０００３】[0003]
【発明が解決しようとする課題】本発明の目的は、活性
が高く、アクリロニトリルへの選択性の高いプロパンの
アンモ酸化触媒を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a propane ammoxidation catalyst having high activity and high selectivity to acrylonitrile.
【０００４】[0004]
【課題を解決するための手段】本発明者らは、プロパン
のアンモ酸化反応およびそれに用いる触媒、特にＭｏを
必須成分として含有する触媒について、活性、アクリロ
ニトリル選択性に優れた触媒を開発すべく、触媒成分、
組成、調製法について鋭意検討をすすめた結果、Ｍｏの
他にＴａおよびＮｂの中から選ばれる１種以上の元素を
必須成分として含有し、且つＢｉを含有しない触媒を用
いると、高い活性、アクリロニトリル選択性が得られる
ことを見いだし、本発明の方法に到達した。即ち、本発
明は、プロパン、アンモニアおよび分子状酸素を気相で
接触反応させてアクリロニトリルを製造する方法におい
て、Means for Solving the Problems The inventors of the present invention have developed a catalyst for ammoxidation of propane and a catalyst used therefor, particularly a catalyst containing Mo as an essential component, which is excellent in activity and acrylonitrile selectivity. Catalyst components,
As a result of intensive studies on the composition and the preparation method, a catalyst containing at least one element selected from Ta and Nb in addition to Mo as an essential component and using no Bi, has a high activity, acrylonitrile. We have found that selectivity is obtained and arrived at the method of the present invention. That is, the present invention provides a method for producing acrylonitrile by contacting propane, ammonia and molecular oxygen in a gas phase,
【０００５】一般式 ＸＭｏaＡbＢcＣdＯp ［式中、ＸはＴａおよびＮｂの中から選ばれる１種以上
の元素、ＡはＷ，Ｓｎ，Ｓｂ，Ｆｅ，Ａｌ，Ｃｒ，Ｃ
ｏ，Ｎｉ，Ｃｕ，Ｍｇ，Ｃａ，ＳｒおよびＢａの中から
選ばれる１種以上の元素、ＢはＬｉ，Ｎａ，Ｋ，Ｒｂお
よびＣｓの中から選ばれる１種以上の元素、ＣはＣｅ，
Ｐｒ，およびＴｂの中から選ばれる１種以上の元素を表
す。ａ，ｂ，ｃ，ｄおよびｐはＸを基準にしたときの、
各元素の原子比を表し、ａは0.1 〜24、ｂは１〜20、ｃ
は０〜0.4 、ｄは０〜0.4 であり、ｐは各成分元素の原
子価を満足するに必要な原子数である。］で示される組
成物を含有し、且つＢｉを含有しない触媒を使用するこ
とを特徴とするプロパンのアンモ酸化によるアクリロニ
トリルの製造方法である。[0005] Formula XMo a A b B c C d O p [ wherein, X is at least one element selected from Ta and Nb, A is W, Sn, Sb, Fe, Al, Cr, C
o, one or more elements selected from Ni, Cu, Mg, Ca, Sr and Ba, B is one or more elements selected from Li, Na, K, Rb and Cs, C is Ce,
Represents one or more elements selected from Pr and Tb. a, b, c, d and p are based on X,
Represents the atomic ratio of each element, a is 0.1 to 24, b is 1 to 20, c
Is 0 to 0.4, d is 0 to 0.4, and p is the number of atoms required to satisfy the valence of each component element. ] The method for producing acrylonitrile by ammoxidation of propane, which comprises using a catalyst containing the composition of formula (I) and not containing Bi.
【０００６】本発明の効果を得るには、Ｂｉを触媒成分
として含まないことが重要である。オレフィン類のアン
モ酸化触媒としてＭｏ、Ｂｉを必須成分とする多成分系
複合酸化物触媒が工業的に多用されているので、プロパ
ンのアンモ酸化触媒として、従来、Ｍｏを含有する触媒
では、多くの場合、Ｂｉは必須成分とされていたが、本
発明者の知見では、Ｍｏの他にＴａおよびＮｂの中から
選ばれる１種以上の元素を必須成分として含有する本願
触媒では、Ｂｉを触媒成分として添加すると、触媒活性
が低下するので好ましくない。In order to obtain the effects of the present invention, it is important that Bi is not contained as a catalyst component. Since multicomponent composite oxide catalysts containing Mo and Bi as essential components are widely used industrially as ammoxidation catalysts for olefins, conventionally, as a catalyst for ammoxidation of propane, there are many catalysts containing Mo. In this case, Bi was regarded as an essential component. However, according to the findings of the present inventors, Bi is a catalyst component in the present catalyst containing one or more elements selected from Ta and Nb in addition to Mo as an essential component. Is not preferred, because the catalytic activity decreases.
【０００７】本発明の方法で使用する触媒は、この分野
で通常用いられる公知の方法、例えば、次のような方法
で調製することができる。モリブデン酸アンモニウムを
純水に加熱溶解し、硝酸水溶液を加えて中和した後、酸
化タンタルを加え、これを約１００℃で撹拌しながら、
還流下加熱し、必要に応じて、Ｗ，Ｓｎ，Ｓｂ，Ｆｅ，
Ａｌ，Ｃｒ，Ｃｏ，Ｎｉ，Ｃｕ，Ｍｇ，Ｃａ，Ｓｒおよ
びＢａの中から選ばれる１種以上の元素の化合物、例え
ば、硝酸塩を加え、また、必要に応じて、ＳｉＯ2など
の担体を加え、得られる泥状懸濁液を乾燥し、仮焼し、
焼成して調製される。The catalyst used in the method of the present invention can be prepared by a known method usually used in this field, for example, the following method. After heating and dissolving ammonium molybdate in pure water and neutralizing by adding a nitric acid aqueous solution, adding tantalum oxide, and stirring this at about 100 ° C.,
Heat under reflux and, if necessary, W, Sn, Sb, Fe,
A compound of at least one element selected from the group consisting of Al, Cr, Co, Ni, Cu, Mg, Ca, Sr and Ba, for example, a nitrate salt is added, and if necessary, a carrier such as SiO 2 is added. , Drying and calcining the resulting muddy suspension,
It is prepared by firing.
【０００８】本発明の触媒の原料は、触媒調製過程で酸
化物に分解され得る化合物が好ましい。その様な化合物
としては、例えば、酸化物、水酸化物、硝酸塩、アンモ
ニウム塩、炭酸塩、塩化物、有機酸塩、金属酸、金属酸
アンモニウム塩などである。ＳｉＯ2の原料としては、
シリカゾル、シリカゲル、珪酸エステル、珪酸塩などが
用いられる。触媒は、粒状あるいは成形体として固定床
で使用されるが、移動床あるいは流動床としても使用で
きる。本発明による気相接触酸化反応の原料ガスとし
て、プロパン、アンモニアおよび分子状酸素が用いられ
る、これら原料ガスの他に希釈ガスを用いることも出来
る。The starting material for the catalyst of the present invention is preferably a compound which can be decomposed into an oxide during the preparation of the catalyst. Examples of such compounds include oxides, hydroxides, nitrates, ammonium salts, carbonates, chlorides, organic acid salts, metal acids, and ammonium metal salts. As raw materials for SiO 2 ,
Silica sol, silica gel, silicates, silicates and the like are used. The catalyst is used in a fixed bed as a granular or shaped body, but can also be used as a moving bed or a fluidized bed. Propane, ammonia and molecular oxygen are used as the raw material gas for the gas phase catalytic oxidation reaction according to the present invention. In addition to these raw material gases, a diluent gas can also be used.
【０００９】分子状酸素現として通常は空気が使用され
るが、純酸素を使用しても良い。希釈ガスとしては、窒
素、炭酸ガスなどの不活性ガスが使用される。反応ガス
に含まれる非凝縮性ガスの一部を循環して希釈ガスとし
て使用しても良い。希釈ガスとして水蒸気を併せて使用
することが、活性、選択性を高める上で好ましい。原料
ガスの組成には、特に制限はないが、安全性の点から
は、混合ガス組成が燃焼範囲外であることが好ましい。
また、希釈ガスとして水蒸気を併せて使用する場合、原
料ガス中の水蒸気は通常６０容量％まで添加される。本
発明による気相接触酸化反応は、前記した原料ガスを、
前記した触媒上に３５０〜５５０℃の温度範囲、常圧〜
１０気圧の圧力下、空間速度３００〜５０００／ｈｒで
導入することで実施される。Air is usually used as the molecular oxygen source, but pure oxygen may be used. As a diluting gas, an inert gas such as nitrogen or carbon dioxide is used. A part of the non-condensable gas contained in the reaction gas may be circulated and used as a diluent gas. It is preferable to use water vapor as the diluent gas in order to enhance the activity and selectivity. The composition of the raw material gas is not particularly limited, but from the viewpoint of safety, the composition of the mixed gas is preferably out of the combustion range.
When steam is also used as the diluent gas, the steam in the raw material gas is usually added up to 60% by volume. In the gas phase catalytic oxidation reaction according to the present invention,
A temperature range of 350 to 550 ° C., normal pressure to
It is carried out by introducing at a pressure of 10 atm and a space velocity of 300 to 5000 / hr.
【００１０】[0010]
【実施例】実施例および比較例によって本発明をさらに
詳細に説明する。反応率、選択率および収率は次のとう
り定義される。 （反応したプロパンのモル数） 反応率＝──────────────×１００ （供給したプロパンのモル数） （生成したアクリロニトリルのモル数） 選択率＝───────────────────×１００ （反応したプロパンのモル数） （生成したアクリロニトリルのモル数） 収率＝───────────────────×１００ （供給したプロパンのモル数）The present invention will be described in more detail with reference to Examples and Comparative Examples. The conversion, selectivity and yield are defined as follows. (Mole number of reacted propane) Reaction rate = ────────────── × 100 (Mole number of supplied propane) (Mole number of acrylonitrile generated) Selectivity = ──── ─────────────── × 100 (moles of reacted propane) (moles of acrylonitrile produced) Yield = ────────────── ───── × 100 (number of moles of propane supplied)
【００１１】実施例１ 七モリブデン酸アンモニウムを蒸留水に溶かしＡ液とし
た。Ｆｅ／Ｃｏの原子比が３／７となるように硝酸鉄と
硝酸コバルトを蒸留水に溶かしＢ液とした。Ｆｅ／Ｍｏ
の原子比が３／１２となるように、Ｂ液をＡ液に加え
た。この混合液にアンモニア水溶液を加えて中性に調整
したのち、これにＴａ／Ｍｏ原子比が１／１２となるよ
うに酸化タンタルを加え、撹拌下、約１００℃で１６時
間、加熱還流した後、蒸発乾涸した。得られた固体を３
４０℃で４時間仮焼し、次いで６００℃で４時間、空気
雰囲気で焼成し、Ｔａ1Ｆｅ3Ｃｏ7Ｍｏ12Ｏxなる組成の
触媒を得た。得られた触媒の性能を評価した。結果を表
１に示した。Example 1 Ammonium heptamolybdate was dissolved in distilled water to obtain solution A. Liquid B was prepared by dissolving iron nitrate and cobalt nitrate in distilled water so that the atomic ratio of Fe / Co became 3/7. Fe / Mo
Solution B was added to Solution A such that the atomic ratio of was 3/12. An aqueous ammonia solution was added to the mixture to adjust the mixture to neutrality, and then tantalum oxide was added to the mixture so that the Ta / Mo atomic ratio became 1/12. The mixture was heated and refluxed at about 100 ° C. for 16 hours with stirring. , Evaporated to dryness. The solid obtained is 3
Calcination was performed at 40 ° C. for 4 hours and then at 600 ° C. for 4 hours in an air atmosphere to obtain a catalyst having a composition of Ta 1 Fe 3 Co 7 Mo 12 O x . The performance of the obtained catalyst was evaluated. The results are shown in Table 1.
【００１２】実施例２ 実施例１と同様にしてＴａ1Ｆｅ3Ｍｇ7Ｃｅ0.05Ｍｏ12
Ｏxなる組成の触媒を得た。得られた触媒の性能を実施
例１と同様にして、評価した。結果を表１に示した。Example 2 In the same manner as in Example 1, Ta 1 Fe 3 Mg 7 Ce 0.05 Mo 12
A catalyst having a composition of O x was obtained. The performance of the obtained catalyst was evaluated in the same manner as in Example 1. The results are shown in Table 1.
【００１３】比較例１ Ｔａ2Ｏ5とＨ2ＭｏＯ4をＴａ／Ｍｏ原子比が２／３にな
るように蒸留水に加え、撹拌下、約１００℃で１６時
間、加熱還流した後、蒸発乾涸した。得られた固体を６
００℃で４時間、空気雰囲気で焼成し、Ｔａ2Ｍｏ3Ｏ14
なる組成の触媒を得た。得られた触媒を通常の流通式反
応器に充填し、プロパン／酸素／アンモニアのモル比が
３／２／２なる組成の原料ガスを、空間速度３６００／
ｈｒで供給した。反応温度を４７０℃に保って、触媒の
性能を実施例１と同様にして評価した。評価結果を表１
に示した。[0013] Comparative Example 1 Ta 2 O 5 and H 2 MoO 4 was added in distilled water to Ta / Mo atomic ratio is 2/3, stirring for 16 hours at about 100 ° C., after heating under reflux, evaporated Dried. The solid obtained is 6
Fired at 00 ° C. for 4 hours in an air atmosphere to obtain Ta 2 Mo 3 O 14
A catalyst having the following composition was obtained. The obtained catalyst was charged into a usual flow-type reactor, and a raw material gas having a molar ratio of propane / oxygen / ammonia of 3/2/2 was supplied at a space velocity of 3600 /
hr. While maintaining the reaction temperature at 470 ° C., the performance of the catalyst was evaluated in the same manner as in Example 1. Table 1 shows the evaluation results.
It was shown to.
【００１４】比較例２ 七モリブデン酸アンモニウムとバナジン酸アンモニウム
をＶ／Ｍｏ原子比が１／２になるように蒸留水に溶か
し、これに硝酸水溶液を加えて中和した後、これにＴａ
／Ｍｏ原子比が１／１となるように酸化タンタルを加
え、撹拌下、約１００℃で１６時間、加熱還流した後、
蒸発乾涸した。得られた固体を３４０℃で４時間仮焼
し、次いで６００℃で４時間、空気雰囲気で焼成し、Ｔ
ａ2Ｖ1Ｍｏ2Ｏxなる組成の触媒を得た。得られた触媒の
性能を比較例１と同様にして、評価した。結果を表１に
示した。Comparative Example 2 Ammonium heptamolybdate and ammonium vanadate were dissolved in distilled water so that the V / Mo atomic ratio became 1/2, and neutralized by adding an aqueous nitric acid solution.
/ Mo Atomic ratio becomes 1/1, tantalum oxide is added, and the mixture is heated and refluxed at about 100 ° C. for 16 hours with stirring.
Evaporated to dryness. The obtained solid is calcined at 340 ° C. for 4 hours, and then calcined at 600 ° C. for 4 hours in an air atmosphere.
to obtain a catalyst of a 2 V 1 Mo 2 O x a composition. The performance of the obtained catalyst was evaluated in the same manner as in Comparative Example 1. The results are shown in Table 1.
【００１５】比較例３ Ｔａに代え、Ｎｂを用いた他は、実施例１と同様にして
Ｎｂ2Ｍｏ3Ｏ14なる組成の触媒を得た。得られた触媒の
性能を、反応温度を４４０℃に代えた他は、比較例１と
同様にして、評価した。結果を表１に示した。Comparative Example 3 A catalyst having a composition of Nb 2 Mo 3 O 14 was obtained in the same manner as in Example 1 except that Nb was used instead of Ta. The performance of the obtained catalyst was evaluated in the same manner as in Comparative Example 1, except that the reaction temperature was changed to 440 ° C. The results are shown in Table 1.
【００１６】比較例４ 七モリブデン酸アンモニウムを蒸留水に溶かしＡ液とし
た。硝酸ビスマスと硝酸を蒸留水に溶かしＢ液とした。
Ｂｉ／Ｍｏの原子比が２／３となるように、Ｂ液をＡ液
に加えた。この混合液にアンモニア水溶液を加えて中性
に調整したのち、これにＴａ／Ｍｏ原子比が２／３とな
るように酸化タンタルを加え、撹拌下、約１００℃で１
６時間、加熱還流した後、蒸発乾涸した。得られた固体
を３４０℃で４時間仮焼し、次いで６００℃で４時間、
空気雰囲気で焼成し、Ｔａ2Ｂｉ2Ｍｏ3Ｏxなる組成の触
媒を得た。得られた触媒の性能を比較例１と同様にし
て、評価した。結果を表１に示した。Comparative Example 4 Ammonium heptamolybdate was dissolved in distilled water to obtain solution A. Bismuth nitrate and nitric acid were dissolved in distilled water to obtain solution B.
Solution B was added to Solution A such that the Bi / Mo atomic ratio was 2/3. An aqueous ammonia solution was added to the mixed solution to adjust the mixture to neutrality, and then tantalum oxide was added to the mixture so that the Ta / Mo atomic ratio became 2/3.
After heating at reflux for 6 hours, it was evaporated to dryness. The obtained solid is calcined at 340 ° C. for 4 hours, and then at 600 ° C. for 4 hours.
The catalyst was fired in an air atmosphere to obtain a catalyst having a composition of Ta 2 Bi 2 Mo 3 O x . The performance of the obtained catalyst was evaluated in the same manner as in Comparative Example 1. The results are shown in Table 1.
【００１７】[0017]
【表１】 [Table 1]
【００１８】[0018]
【発明の効果】本発明で使用するアンモ酸化触媒は、活
性が高く、アクリロニトリルへの選択性が高いので、本
発明の方法により、プロパンから、効率よくアクリロニ
トリルを製造することが出来る。The ammoxidation catalyst used in the present invention has a high activity and a high selectivity to acrylonitrile, so that acrylonitrile can be efficiently produced from propane by the method of the present invention.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) C07C 253/24 C07C 255/08 C07B 61/00 300 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. 7 , DB name) C07C 253/24 C07C 255/08 C07B 61/00 300
Claims (1)
気相で接触反応させてアクリロニトリルを製造する方法
において、一般式 ＸＭｏaＡb ＢcＣdＯp ［式中、ＸはＴａ及びＮｂの中から選ばれる１種以上の
元素、ＡはＷ，Ｓｎ，Ｓｂ，Ｆｅ，Ａｌ，Ｃｒ，Ｃｏ，
Ｎｉ，Ｃｕ，Ｍｇ，Ｃａ，Ｓｒ及びＢａの中から選ばれ
る１種以上の原子、ＢはＬｉ，Ｎａ，Ｋ，Ｒｂ及びＣｓ
の中から選ばれた１種以上の元素、ＣはＣｅ，Ｐｒ，及
びＴｂの中から選ばれる１種以上の元素を表す。ａ，
ｂ，ｃ，ｄ及びｐはＸを基準にしたときの、各元素の原
子比を表し、ａは０．１〜２４、ｂは１〜２０、ｃは０
〜０．４、ｄは０〜０．４であり、ｐは各成分元素の原
子価を満足するに必要な原子数である。］で示される組
成物を含有し、かつＢｉを含有しない触媒を用いること
を特徴とするアクリロニトリルの製造方法。1. A method for producing propane, ammonia and molecular oxygen.
Method for producing acrylonitrile by catalytic reaction in gas phase
In the general formula XMoaAbBcCdOp [In the formula, X is one or more kinds selected from Ta and Nb.
The element A is W, Sn, Sb, Fe, Al, Cr, Co,
Selected from among Ni, Cu, Mg, Ca, Sr and Ba
One or more atoms, B is Li, Na, K, Rb and Cs
At least one element selected from the group consisting of Ce, Pr, and
And one or more elements selected from Tb. a,
b, c, d and p are the origins of each element with respect to X.
A is 0.1 to 24, b is 1 to 20, c is 0
~ 0.4, d is 0 ~ 0.4, and p is the source of each component element.
This is the number of atoms required to satisfy the valence. ]
Use a catalyst containing a product and not containing Bi
A method for producing acrylonitrile, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04022700A JP3117265B2 (en) | 1992-02-07 | 1992-02-07 | Method for producing α, β-unsaturated nitrile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04022700A JP3117265B2 (en) | 1992-02-07 | 1992-02-07 | Method for producing α, β-unsaturated nitrile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05213848A JPH05213848A (en) | 1993-08-24 |
| JP3117265B2 true JP3117265B2 (en) | 2000-12-11 |
Family
ID=12090146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04022700A Expired - Fee Related JP3117265B2 (en) | 1992-02-07 | 1992-02-07 | Method for producing α, β-unsaturated nitrile |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3117265B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104549344A (en) * | 2013-10-28 | 2015-04-29 | 中国石油化工股份有限公司 | Unsaturated nitrile fluidized bed catalyst and preparation method thereof |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0970942B1 (en) * | 1996-11-15 | 2004-03-03 | Mitsubishi Chemical Corporation | Process for the simultaneous preparation of acrylonitrile and acrylic acid |
| ID20720A (en) * | 1997-08-05 | 1999-02-18 | Asahi Chemical Ind | WATER SOLUTIONS THAT CONTAIN NIOBIUMS FOR USE IN THE MAKING OF OXIDE CATALYSTS CONTAINING NIOBIUM |
| ID20670A (en) * | 1997-08-05 | 1999-02-11 | Asahi Chemical Ind | AMOXICATION CATALYST FOR USE IN PRODUCING ACRYLONITRYL OR METACRYLONITRIL FROM PROPANA OR ISOBUTANA WITH AMOXICATION |
-
1992
- 1992-02-07 JP JP04022700A patent/JP3117265B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104549344A (en) * | 2013-10-28 | 2015-04-29 | 中国石油化工股份有限公司 | Unsaturated nitrile fluidized bed catalyst and preparation method thereof |
| CN104549344B (en) * | 2013-10-28 | 2017-02-08 | 中国石油化工股份有限公司 | Unsaturated nitrile fluidized bed catalyst and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05213848A (en) | 1993-08-24 |
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