JPH06199768A - Production of alpha,beta-unsaturated nitrile - Google Patents

Production of alpha,beta-unsaturated nitrile

Info

Publication number
JPH06199768A
JPH06199768A JP5000262A JP26293A JPH06199768A JP H06199768 A JPH06199768 A JP H06199768A JP 5000262 A JP5000262 A JP 5000262A JP 26293 A JP26293 A JP 26293A JP H06199768 A JPH06199768 A JP H06199768A
Authority
JP
Japan
Prior art keywords
catalyst
group
elements selected
gas
acrylonitrile
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
Application number
JP5000262A
Other languages
Japanese (ja)
Inventor
Ikuya Matsuura
郁也 松浦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsui Toatsu Chemicals Inc
Original Assignee
Mitsui Toatsu Chemicals Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsui Toatsu Chemicals Inc filed Critical Mitsui Toatsu Chemicals Inc
Priority to JP5000262A priority Critical patent/JPH06199768A/en
Publication of JPH06199768A publication Critical patent/JPH06199768A/en
Pending legal-status Critical Current

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Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/50Improvements relating to the production of bulk chemicals
    • Y02P20/52Improvements 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)

Abstract

PURPOSE:To produce acrylonitrile from propane. CONSTITUTION:This method for producing acrylonitrile comprises using a catalyst prepared from a phosphate catalyst 1 containing one or more elements selected from the group consisting of molybdenum, vanadium, niobium and tantalum as an essential component and a catalyst 2 containing bismuth and the molybdenum as an essential component in subjecting propane and ammonia to ammoxidation with molecular oxygen and producing the acrylonitrile.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明はプロパン、アンモニアお
よび分子状酸素の気相接触アンモ酸化反応によって、ア
クリロニトリルを製造する方法に関する。
FIELD OF THE INVENTION The present invention relates to a method for producing acrylonitrile by a gas phase catalytic ammoxidation reaction of propane, 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は1970
年代から多くの提案がなされている。例えば、USP4
883895では、V−P−W系触媒およびBi−Fe
−Mo系触媒の組み合わせが提案されている。また、U
SP4918214ではV−P−W系およびBi−Ce
−Mo−W系からなる触媒、USP4978764では
Cs−K−Ni−Co−Mn−Bi−Cr−Mo−Oか
らなる触媒、特開平3−58961ではシーライト構造
を有するBi−V−Mo系触媒、特開平3−58962
では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、これら
の触媒では、パラフィンの酸化に比較的高い反応温度が
必要であり、併発する気相ラジカル反応、目的物である
不飽和化合物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。また、副生オレフ
ィンが多いと分離回収し、中間原料として循環使用し不
飽和ニトリル類に転化する必要があり、煩雑なプロセス
になる問題点があった。そのため、副生オレフィン量が
少なく不飽和ニトリルへの選択性が高い触媒の開発が望
まれていた。
2. Description of the Related Art A number of catalysts for producing α, β-unsaturated nitriles by gas-phase catalytic ammoxidation of C 3 -C 5 paraffins have been proposed. Among them, the acrylonitrile synthesis catalyst by ammoxidation of propane is 1970.
Many proposals have been made since the generation. For example, USP4
883895, V-P-W based catalyst and Bi-Fe
A combination of -Mo-based catalysts has been proposed. Also, U
In SP4918214, V-P-W system and Bi-Ce
-Mo-W based catalyst, USP4978764 for Cs-K-Ni-Co-Mn-Bi-Cr-Mo-O catalyst, and JP-A-3-58961 for Bi-V-Mo based catalyst having a celite structure. JP-A-3-58962
Proposes a catalyst composed of Ga / Ta-Bi-Mo-O. In general, since paraffin has a lower reactivity than olefin, the conventional catalyst has a low paraffin conversion rate under olefin ammoxidation conditions. Therefore, these catalysts require a relatively high reaction temperature for the oxidation of paraffin, and the selectivity to unsaturated nitrile is low due to the concurrent gas-phase radical reaction and the sequential oxidation of the target unsaturated compound. There was a problem. Further, if the amount of by-product olefins is large, it is necessary to separate and collect them, and circulate them as an intermediate raw material to convert them into unsaturated nitriles, which results in a complicated process. Therefore, it has been desired to develop a catalyst having a small amount of by-produced olefin and high selectivity to unsaturated nitrile.

【0003】[0003]

【発明が解決しようとする課題】本発明の目的は、触媒
活性およびアクリロニトリルへの選択性が高く、プロピ
レン副生が少ない、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 It is an object of the present invention to provide a propane ammoxidation catalyst which has high catalytic activity, high selectivity to acrylonitrile, and low propylene by-product.

【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、V、NbおよびTaよりなる群から選ば
れた1種以上の元素を必須成分とし、且つ燐酸塩の構造
を有する触媒と、BiおよびMoを必須成分とする触媒
より調整した触媒を使用することにより、高い活性、ア
クリロニトリル選択性を有することを見いだし、本発明
の方法に到達した。即ち、本発明は、プロパン、アンモ
ニアおよび酸素含有ガスとの気相接触アンモ酸化反応で
アクリロニトリルを製造するに際し、Mo、V、Nbお
よびTaよりなる群から選ばれた1種以上の元素を必須
成分として含有する燐酸塩触媒1と、BiおよびMoを
必須成分として含有する触媒2より調整した触媒を用い
ることを特徴とするアクリロニトリルの製造方法であ
る。
[Means for Solving the Problems] The present inventors diligently studied catalyst components, compositions, and preparation methods for the ammoxidation reaction of propane and the catalyst used therefor in order to develop a catalyst excellent in activity and acrylonitrile selectivity. As a result, it is adjusted from a catalyst having one or more elements selected from the group consisting of Mo, V, Nb and Ta as an essential component and having a phosphate structure, and a catalyst having Bi and Mo as an essential component. By using the above catalyst, it was found to have high activity and acrylonitrile selectivity, and the method of the present invention was reached. That is, the present invention comprises one or more elements selected from the group consisting of Mo, V, Nb and Ta as essential components when producing acrylonitrile by a gas phase catalytic ammoxidation reaction with propane, ammonia and an oxygen-containing gas. The method for producing acrylonitrile is characterized in that a catalyst prepared from the phosphate catalyst 1 contained as 1) and the catalyst 2 containing Bi and Mo as essential components is used.

【0005】また本発明は、プロパン、アンモニアおよ
び酸素含有ガスとの気相接触アンモ酸化反応でアクリロ
ニトリルを製造するに際し、燐酸塩触媒1が一般式XA
abcde [式中、XはMo、V、NbおよびTaよりなる群から
選ばれた1種以上の元素、AはW、Bi、Sn、Sb、
Fe、Al、Cr、Co、Ni、Cu、Mg、Ca、S
rおよびBaよりなる群から選ばれた1種以上の元素、
BはLi、Na、K、RbおよびCsよりなる群から選
ばれた1種以上の元素、CはCe、PrおよびTbより
なる群から選ばれた1種以上の元素を表す。a、b、c
およびdはXを基準にしたときの、各元素の原子比を表
し、aは0〜0.5、bは0〜0.5、cは0〜0.
3、dは1〜10であり、e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。]で表される組成物を含
有し、触媒2が一般式 BiMofghij [式中、DはFe、Co、Ni、Zn、CuおよびWよ
りなる群から選ばれた1種以上の元素、EはMg、C
a、SrおよびBaよりなる群から選ばれた1種以上の
元素、FはNa、K、Rb、CsおよびTlよりなる群
から選ばれた1種以上の元素を表す。f、g、hおよび
iはBiを基準にしたときの各元素の原子比を表し、f
は0.01〜5、gは0〜0.5、hは0〜0.3、i
は0〜0.2であり、jは各成分の原子価を満足するに
必要な原子数である。]で表される組成物を含有するも
のより調整した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である。
Further, according to the present invention, when the acrylonitrile is produced by a gas phase catalytic ammoxidation reaction with propane, ammonia and an oxygen-containing gas, the phosphate catalyst 1 has the general formula XA.
a B b C c P d O e [wherein, X is one or more elements selected from the group consisting of Mo, V, Nb and Ta, A is W, Bi, Sn, Sb,
Fe, Al, Cr, Co, Ni, Cu, Mg, Ca, S
one or more elements selected from the group consisting of r and Ba,
B represents one or more elements selected from the group consisting of Li, Na, K, Rb and Cs, and C represents one or more elements selected from the group consisting of Ce, Pr and Tb. a, b, c
And d represent the atomic ratio of each element based on X, where a is 0 to 0.5, b is 0 to 0.5, and c is 0 to 0.
3, d is 1 to 10, and e is the number of atoms required to satisfy the valence of each component element. Contain represented by composition, the catalyst 2 in the general formula BiMo f D g E h F i O j [ wherein, D is selected Fe, Co, Ni, Zn, from the group consisting of Cu and W One or more elements, E is Mg, C
One or more elements selected from the group consisting of a, Sr and Ba, and F represents one or more elements selected from the group consisting of Na, K, Rb, Cs and Tl. f, g, h and i represent the atomic ratio of each element based on Bi, f
Is 0.01 to 5, g is 0 to 0.5, h is 0 to 0.3, i
Is 0 to 0.2, and j is the number of atoms required to satisfy the valence of each component. ] It is a manufacturing method of acrylonitrile characterized by using the catalyst prepared from the thing containing the composition represented by these.

【0006】また本発明の燐酸塩触媒1は、好ましくは
Mo、V、NbおよびTaよりなる群から選ばれた1種
以上の元素が5価であり、且つその燐酸塩がテトラゴナ
ルな構造を有するものである。また本発明の触媒2は、
その中にPを含有しないことが好ましい。本発明の方法
で用いる燐酸塩触媒1および触媒2は、この分野で通常
用いられる公知の方法で調製することができる。
In the phosphate catalyst 1 of the present invention, preferably, one or more elements selected from the group consisting of Mo, V, Nb and Ta are pentavalent, and the phosphate has a tetragonal structure. It is a thing. Further, the catalyst 2 of the present invention is
It is preferable that P is not contained therein. The phosphate catalyst 1 and the catalyst 2 used in the method of the present invention can be prepared by known methods usually used in this field.

【0007】燐酸塩触媒1の調整法は、用いるMo、
V、NbおよびTa源としては、特に制限はないが、好
ましくは酸化物、水酸化物、硝酸塩等である。P源とし
ては、特に制限はないが、好ましくは燐酸を用いる。具
体的には、例えば85%H3PO4にタンタル酸を加え、
これを攪拌しながら還流下で加熱した後に、乾燥し焼成
する方法で調製される。また、必要に応じて、Bi、
W、Sn、Sb、Fe、Al、Cr、Co、Ni、C
u、Mg、Ca、SrおよびBaよりなる群から選ばれ
た1種以上の元素の化合物、例えば、酸化物を添加する
ことができる。乾燥温度は通常60〜200℃、乾燥時
間は特に制限はないが、好ましくは2〜10時間であ
る。また焼成温度は通常200〜1000℃、好ましく
は450〜850℃、焼成時間は特に制限はないが、好
ましくは2〜10時間である。
The method for preparing the phosphate catalyst 1 is as follows.
The sources of V, Nb and Ta are not particularly limited, but oxides, hydroxides, nitrates and the like are preferable. The P source is not particularly limited, but phosphoric acid is preferably used. Specifically, for example, tantalic acid is added to 85% H 3 PO 4 ,
It is prepared by a method in which this is heated under reflux with stirring, then dried and calcined. Also, if necessary, Bi,
W, Sn, Sb, Fe, Al, Cr, Co, Ni, C
A compound of at least one element selected from the group consisting of u, Mg, Ca, Sr and Ba, for example, an oxide can be added. The drying temperature is usually 60 to 200 ° C., and the drying time is not particularly limited, but it is preferably 2 to 10 hours. The firing temperature is usually 200 to 1000 ° C, preferably 450 to 850 ° C, and the firing time is not particularly limited, but is preferably 2 to 10 hours.

【0008】触媒2の調整に用いるBiおよびMo源と
しては、特に制限はないが、好ましくはそれらの酸化
物、水酸化物、硝酸塩やモリブデン酸塩等である。その
調整法は、例えば必要とする金属化合物を混合し、焼成
して得られる。最も好ましい調製法では、モリブデンの
出発物質として七モリブデン酸アンモニウムを用い、ビ
スマスの導入に最も好ましい化合物としては硝酸ビスマ
スを用いる。他のFe、Co、Ni、Zn、Cu、W、
Mg、Ca、Sr、Ba、Na、K、Rb、Csおよび
Tlよりなる群から選ばれた1種以上の元素の導入に
は、好ましくは硝酸塩または塩化物が用いられる。触媒
2の調整は、これら所望触媒成分を含む水溶液を蒸発乾
涸した後、焼成することにより行なう。乾燥温度は通常
60〜200℃、乾燥時間は特に制限はないが、好まし
くは2〜10時間である。また焼成温度は通常200〜
1000℃、好ましくは450〜850℃、焼成時間は
特に制限はないが、好ましくは2〜10時間である。
The source of Bi and Mo used for preparing the catalyst 2 is not particularly limited, but oxides, hydroxides, nitrates and molybdates thereof are preferable. The adjustment method is obtained, for example, by mixing a required metal compound and firing. The most preferred preparation method uses ammonium heptamolybdate as the starting material for molybdenum and bismuth nitrate as the most preferred compound for introducing bismuth. Other Fe, Co, Ni, Zn, Cu, W,
A nitrate or chloride is preferably used for introducing one or more elements selected from the group consisting of Mg, Ca, Sr, Ba, Na, K, Rb, Cs and Tl. The catalyst 2 is adjusted by evaporating an aqueous solution containing these desired catalyst components to dryness and then calcining. The drying temperature is usually 60 to 200 ° C., and the drying time is not particularly limited, but it is preferably 2 to 10 hours. The firing temperature is usually 200-
The firing time is 1000 ° C., preferably 450 to 850 ° C., and the firing time is not particularly limited, but is preferably 2 to 10 hours.

【0009】本発明で使用する触媒は、燐酸塩触媒1と
触媒2より調整した触媒である。その調整法として燐酸
塩触媒1と触媒2を混合して調整する。この際、燐酸塩
触媒1と触媒2を混合した後に焼成することもできる。
焼成温度は通常200〜1000℃、好ましくは450
〜850℃、焼成時間は特に制限はないが、好ましくは
2〜10時間である。また、この分野で通常行われる方
法であるが、この触媒をSiO2、Al23、SiCな
どの担体に担持した状態で使用しても良い。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。
The catalyst used in the present invention is a catalyst prepared from phosphate catalyst 1 and catalyst 2. As the adjusting method, the phosphate catalyst 1 and the catalyst 2 are mixed and adjusted. At this time, the phosphate catalyst 1 and the catalyst 2 may be mixed and then calcined.
The firing temperature is usually 200 to 1000 ° C., preferably 450.
The firing time is not particularly limited, but is preferably 2 to 10 hours. Further, although it is a method which is usually carried out in this field, the catalyst may be used in a state of being supported on a carrier such as SiO 2 , Al 2 O 3 or SiC. The catalyst is used in the fixed bed in the form of granules or shaped bodies, but it can also be used in the moving bed or the fluidized bed.

【0010】本発明による気相接触アンモ酸化反応の原
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。本発明の方法で用いる分子状酸素源とし
て、通常は空気が使用されるが、純酸素を使用しても良
い。アンモニア源としては、乾燥ガスでも良いが、アン
モニア水を蒸発器で気化して使用しても良い。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および選択性を高める上
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アンモ酸化反応
は、原料ガスを、前記した触媒上に350〜600℃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。
As a raw material gas for the gas phase catalytic ammoxidation reaction according to the present invention, propane, ammonia and molecular oxygen are used. In addition to these raw material gases, a diluent gas can also be used. As the molecular oxygen source used in the method of the present invention, air is usually used, but pure oxygen may be used. As the ammonia source, dry gas may be used, but ammonia water may be used after being vaporized by an evaporator. An inert gas such as nitrogen or carbon dioxide is used as the diluting gas. 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 together as a diluent gas in order to enhance activity and selectivity. The composition of the raw material gas is not particularly limited,
From the viewpoint of safety, it is preferable that the mixed gas composition is outside the combustion range. When water vapor is also used as a diluent gas, the water vapor in the raw material gas is usually added up to 60% by volume. In the gas-phase catalytic ammoxidation reaction according to the present invention, the raw material gas is placed on the above-mentioned catalyst in the temperature range of 350 to 600 ° C., the atmospheric pressure to 10 atm, and the space velocity of 300 to.
It is implemented by introducing at 5000 / hr.

【0011】[0011]

【実施例】実施例によって本発明をさらに詳細に説明す
る。転化率(数1)、アクリロニトリル選択率(数
2)、およびプロピレン選択率(数3)は次のとうり定
義される。
The present invention will be described in more detail by way of examples. The conversion rate (Equation 1), acrylonitrile selectivity (Equation 2), and propylene selectivity (Equation 3) are defined as follows.

【0012】[0012]

【数1】 [Equation 1]

【0013】[0013]

【数2】 [Equation 2]

【0014】[0014]

【数3】 [Equation 3]

【0015】実施例1 ニオブ酸と85%H3PO4をNb/P原子比が1/1に
なるように混合し、100℃で攪拌下、5時間加熱還流
した後、蒸発乾涸した。得られた固体を500℃で3時
間空気中で焼成し、NbOPO4の組成からなる燐酸塩
触媒1を得た。七モリブデン酸アンモニウム水溶液と硝
酸ビスマス水溶液を、Mo/Bi原子比が3/2になる
ように混合し、さらにアンモニア水を加え混合水溶液を
中性とした後、蒸発乾涸した。得られた固体を500℃
で3時間空気中で焼成しBi2Mo312の組成からなる
触媒2を得た。燐酸塩触媒1と触媒2を4:1の重量比
で良く混合した後、520℃で3時間空気中で焼成して
触媒を得た。
Example 1 Niobic acid and 85% H 3 PO 4 were mixed so that the Nb / P atomic ratio was 1/1, heated under reflux at 100 ° C. for 5 hours with stirring, and then evaporated to dryness. The obtained solid was calcined in air at 500 ° C. for 3 hours to obtain a phosphate catalyst 1 having a composition of NbOPO 4 . An ammonium heptamolybdate aqueous solution and a bismuth nitrate aqueous solution were mixed so that the Mo / Bi atomic ratio was 3/2, ammonia water was further added to make the mixed aqueous solution neutral, and then evaporated to dryness. The solid obtained is 500 ° C.
Then, it was calcined in air for 3 hours to obtain a catalyst 2 having a composition of Bi 2 Mo 3 O 12 . The phosphate catalyst 1 and the catalyst 2 were mixed well in a weight ratio of 4: 1 and then calcined in air at 520 ° C. for 3 hours to obtain a catalyst.

【0016】実施例2 実施例1と同様にして調整したTaOPO4とBi2Mo
312を4:1の重量比で混合した後、520℃で3時
間空気中で焼成し、触媒を得た。
Example 2 TaOPO 4 and Bi 2 Mo prepared in the same manner as in Example 1
3 O 12 was mixed at a weight ratio of 4: 1 and then calcined in air at 520 ° C. for 3 hours to obtain a catalyst.

【0017】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3/2/1
なる組成の原料ガスを、空間速度1800/hrで供給
した。反応温度を480℃に保って、触媒の性能を評価
した。評価結果を(表1)に示した。
The obtained catalyst was packed in a usual flow reactor, and the propane / oxygen / ammonia molar ratio was 3/2/1.
A raw material gas having the following composition was supplied at a space velocity of 1800 / hr. The reaction temperature was kept at 480 ° C. to evaluate the performance of the catalyst. The evaluation results are shown in (Table 1).

【0018】[0018]

【表1】 表1 ──────────────────────────────────── 例 プロパン アクリロニトリル 転化率(%) 選択率(%) ──────────────────────────────────── 実施例 1 11.1 78 2 10.9 75 ────────────────────────────────────[Table 1] Table 1 ──────────────────────────────────── Example propane Acrylonitrile conversion (%) Selectivity (%) ──────────────────────────────────── Example 1 11.1 78 2 10 975 ─────────────────────────────────────

【0019】[0019]

【発明の効果】本発明で使用する触媒は、触媒活性が高
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。
Since the catalyst used in the present invention has high catalytic activity and high selectivity to acrylonitrile, the method of the present invention enables efficient production of acrylonitrile from propane.

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 プロパン、アンモニアおよび酸素含有ガ
スとの気相接触アンモ酸化反応でアクリロニトリルを製
造するに際し、Mo、V、NbおよびTaよりなる群か
ら選ばれた1種以上の元素を必須成分として含有する燐
酸塩触媒1と、BiおよびMoを必須成分として含有す
る触媒2より調整した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. When producing acrylonitrile by a gas-phase catalytic ammoxidation reaction with propane, ammonia and an oxygen-containing gas, at least one element selected from the group consisting of Mo, V, Nb and Ta is used as an essential component. A method for producing acrylonitrile, which comprises using a catalyst prepared from the contained phosphate catalyst 1 and the catalyst 2 containing Bi and Mo as essential components.
【請求項2】 燐酸塩触媒1が一般式 XAabcde [式中、XはMo、V、NbおよびTaよりなる群から
選ばれた1種以上の元素、AはW、Bi、Sn、Sb、
Fe、Al、Cr、Co、Ni、Cu、Mg、Ca、S
rおよびBaよりなる群から選ばれた1種以上の元素、
BはLi、Na、K、RbおよびCsよりなる群から選
ばれた1種以上の元素、CはCe、PrおよびTbより
なる群から選ばれた1種以上の元素を表す。a、b、c
およびdはXを基準にしたときの、各元素の原子比を表
し、aは0〜0.5、bは0〜0.5、cは0〜0.
3、dは1〜10であり、e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。]で表される組成物を含
有し、触媒2が一般式 BiMofghij [式中、DはFe、Co、Ni、Zn、CuおよびWよ
りなる群から選ばれた1種以上の元素、EはMg、C
a、SrおよびBaよりなる群から選ばれた1種以上の
元素、FはNa、K、Rb、CsおよびTlよりなる群
から選ばれた1種以上の元素を表す。f、g、hおよび
iはBiを基準にしたときの各元素の原子比を表し、f
は0.01〜5、gは0〜0.5、hは0〜0.3、i
は0〜0.2であり、jは各成分の原子価を満足するに
必要な原子数である。]で表される組成物を含有するも
のである請求項1記載の方法。
2. The phosphate catalyst 1 has the general formula XA a B b C c P d O e [wherein X is one or more elements selected from the group consisting of Mo, V, Nb and Ta, and A is W, Bi, Sn, Sb,
Fe, Al, Cr, Co, Ni, Cu, Mg, Ca, S
one or more elements selected from the group consisting of r and Ba,
B represents one or more elements selected from the group consisting of Li, Na, K, Rb and Cs, and C represents one or more elements selected from the group consisting of Ce, Pr and Tb. a, b, c
And d represent the atomic ratio of each element based on X, where a is 0 to 0.5, b is 0 to 0.5, and c is 0 to 0.
3, d is 1 to 10, and e is the number of atoms required to satisfy the valence of each component element. Contain represented by composition, the catalyst 2 in the general formula BiMo f D g E h F i O j [ wherein, D is selected Fe, Co, Ni, Zn, from the group consisting of Cu and W One or more elements, E is Mg, C
One or more elements selected from the group consisting of a, Sr and Ba, and F represents one or more elements selected from the group consisting of Na, K, Rb, Cs and Tl. f, g, h and i represent the atomic ratio of each element based on Bi, f
Is 0.01 to 5, g is 0 to 0.5, h is 0 to 0.3, i
Is 0 to 0.2, and j is the number of atoms required to satisfy the valence of each component. ] The method of Claim 1 containing the composition represented by these.
【請求項3】 Mo、V、NbおよびTaよりなる群か
ら選ばれた1種以上の元素が5価であり、且つその燐酸
塩がテトラゴナルな構造を有するものである請求項1記
載の方法。
3. The method according to claim 1, wherein at least one element selected from the group consisting of Mo, V, Nb and Ta is pentavalent, and its phosphate salt has a tetragonal structure.
JP5000262A 1993-01-05 1993-01-05 Production of alpha,beta-unsaturated nitrile Pending JPH06199768A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5000262A JPH06199768A (en) 1993-01-05 1993-01-05 Production of alpha,beta-unsaturated nitrile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5000262A JPH06199768A (en) 1993-01-05 1993-01-05 Production of alpha,beta-unsaturated nitrile

Publications (1)

Publication Number Publication Date
JPH06199768A true JPH06199768A (en) 1994-07-19

Family

ID=11469003

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5000262A Pending JPH06199768A (en) 1993-01-05 1993-01-05 Production of alpha,beta-unsaturated nitrile

Country Status (1)

Country Link
JP (1) JPH06199768A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998022421A1 (en) * 1996-11-15 1998-05-28 Mitsubishi Chemical Corporation Process for the simultaneous preparation of acrylonitrile and acrylic acid
US5840648A (en) * 1997-09-02 1998-11-24 The Standard Oil Company Catalyst for the manufacture of acrylonitrile and hydrogen cyanide
JP2013136540A (en) * 2011-12-28 2013-07-11 Daiyanitorikkusu Kk Method of producing nitrogen-containing compound

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998022421A1 (en) * 1996-11-15 1998-05-28 Mitsubishi Chemical Corporation Process for the simultaneous preparation of acrylonitrile and acrylic acid
US5840648A (en) * 1997-09-02 1998-11-24 The Standard Oil Company Catalyst for the manufacture of acrylonitrile and hydrogen cyanide
JP2013136540A (en) * 2011-12-28 2013-07-11 Daiyanitorikkusu Kk Method of producing nitrogen-containing compound

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