JPH101465A - Ammoxidation catalyst and production of nitrile using the same - Google Patents

Ammoxidation catalyst and production of nitrile using the same

Info

Publication number
JPH101465A
JPH101465A JP8194181A JP19418196A JPH101465A JP H101465 A JPH101465 A JP H101465A JP 8194181 A JP8194181 A JP 8194181A JP 19418196 A JP19418196 A JP 19418196A JP H101465 A JPH101465 A JP H101465A
Authority
JP
Japan
Prior art keywords
catalyst
based oxide
ammonia
alkane
nitrile
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
Application number
JP8194181A
Other languages
Japanese (ja)
Other versions
JP3894986B2 (en
Inventor
Hidenori Hinako
英範 日名子
Sadataka Kanejima
節隆 金島
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.)
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi Chemical Industry Co Ltd
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 Asahi Chemical Industry Co Ltd filed Critical Asahi Chemical Industry Co Ltd
Priority to JP19418196A priority Critical patent/JP3894986B2/en
Publication of JPH101465A publication Critical patent/JPH101465A/en
Application granted granted Critical
Publication of JP3894986B2 publication Critical patent/JP3894986B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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

  • Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

PROBLEM TO BE SOLVED: To obtain an ammoxidation catalyst for efficiently producing a nitrile by using an alkane as a raw material with slight combustion of ammonia and to provide a method for producing nitrile. SOLUTION: This ammoxidation catalyst is shown by the formula Nb1 Sba Crb Xy On (X is at least one element selected from the group consisting of Sn, Fe, Co, Ni, Mn, Ga, In, Zn, Mg, Ca, Sr, Ba, Pb, Al, Zr, Si, Ti, Ta, Ag, Y, Ce, La, Cu, B, P, Na, K, Rb and Cs; 0.1<=a<=10, 0<=b<=10, 0<=y<=10; (n) is a value determined by the valences of the other existing elements). An alkane is catalytically brought into contact with a mixed gas containing molecular oxygen and ammonia in a gaseous phase to produce a nitrile.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、アルカンを分子状
酸素とアンモニアにより気相接触酸化させ、ニトリルを
製造する方法に関するものであり、特に、プロパン、n
−ブタンからアクリロニトリルを、イソブタンからメタ
アクリロニトリルの製造方法に関する。アクリロニトリ
ル、メタクリロニトリル等のニトリル類は、合成繊維、
合成樹脂、合成ゴムを中心に多様な工業製品の中間原料
として工業的に重要である。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a nitrile by subjecting an alkane to gas-phase catalytic oxidation with molecular oxygen and ammonia.
The invention relates to a process for producing acrylonitrile from butane and methacrylonitrile from isobutane. Nitriles such as acrylonitrile and methacrylonitrile are synthetic fibers,
It is industrially important as an intermediate material for various industrial products, mainly synthetic resins and synthetic rubbers.

【0002】[0002]

【従来の技術】アクリロニトリル、メタクリロニトリル
等のニトリル類の製造方法としては、従来、オレフィ
ン、すなわちプロピレン、イソブテン等を原料とし、触
媒の存在下で分子状酸素およびアンモニアにより気相接
触アンモ酸化する方法が当業者によく知られている。一
方、アルカンはオレフィンに比較して一層広範囲に入手
可能であり、また、経済的にも一層有利な出発原料であ
る。そのために、アルカンを出発原料にして触媒の存在
下、分子状酸素とアンモニアにより気相接触アンモ酸化
させるニトリル類の製造方法に関心が高まっている。特
に工業的に重要なアクリロニトリル、メタクリロニトリ
ルを、プロパン、n−ブタン、イソブタンを出発原料と
して、触媒の存在下、分子状酸素とアンモニアにより気
相接触アンモ酸化させる製造方法に関心が高まってい
る。
2. Description of the Related Art Nitriles such as acrylonitrile and methacrylonitrile are conventionally produced by gas-phase catalytic ammoxidation with molecular oxygen and ammonia in the presence of a catalyst using an olefin, that is, propylene, isobutene or the like as a raw material. Methods are well known to those skilled in the art. Alkanes, on the other hand, are more widely available than olefins and are economically more advantageous starting materials. For this reason, there has been increasing interest in a method for producing nitriles in which gas phase catalytic ammoxidation is carried out with molecular oxygen and ammonia in the presence of a catalyst using an alkane as a starting material. In particular, there is growing interest in a production method of gas-phase catalytic ammoxidation of industrially important acrylonitrile and methacrylonitrile with molecular oxygen and ammonia in the presence of a catalyst using propane, n-butane and isobutane as starting materials. .

【0003】プロパン、n−ブタンまたはイソブタンを
原料とし、気相接触アンモ酸化法によりアクリロニトリ
ルまたはメタアクリロニトリルを製造する方法のうち、
ハロゲンプロモ−タ−または硫黄プロモータ−と触媒を
用いる方法として、塩化水素とFe−U−Sb系酸化物
触媒(USP3, 686,295号明細書)、臭化メチ
ルとMo−Ce系酸化物触媒(USP3,746,73
7号明細書)、臭化メチルとMo−Te−Ce系酸化物
触媒(USP3,833,638号明細書)、硫化水素
とSb−U系酸化物触媒(特公昭50−17046号公
報)等が知られている。
[0003] Among the methods for producing acrylonitrile or methacrylonitrile by gas phase catalytic ammoxidation from propane, n-butane or isobutane as a raw material,
Examples of the method using a halogen promoter or a sulfur promoter and a catalyst include hydrogen chloride and an Fe-U-Sb-based oxide catalyst (US Pat. No. 3,686,295), and methyl bromide and a Mo-Ce-based oxide catalyst. (USP 3,746,73
No. 7), methyl bromide and Mo-Te-Ce-based oxide catalyst (US Pat. No. 3,833,638), hydrogen sulfide and Sb-U-based oxide catalyst (JP-B-50-17046), etc. It has been known.

【0004】ハロゲンプロモーターまたは硫黄プロモー
タ−を用いず触媒存在下のみで行う方法として、触媒系
としてはSb−U−Ni−V系酸化物触媒(特公昭47
−14371号公報、USP3,816,506号明細
書)、Sb−U−W系酸化物触媒(USP3,670,
006号明細書)、Sb−U系酸化物触媒(USP4,
000,178号明細書)、Bi−Fe系酸化物触媒
(USP3,670,008号明細書)、Mo−B−S
n系酸化物触媒(USP3,670,009号明細
書)、Sb−In系酸化物触媒(USP3,678,0
90号明細書)、Ga−Sb系酸化物触媒(ソ連特許5
47444号、ソ連特許698646号)、Sb−Sn
系酸化物触媒、Sb−U系酸化物触媒、As−Sn系酸
化物触媒、As−U系酸化物触媒、Sn−Ti系酸化物
触媒、Mo−Sn系酸化物触媒、V−Cr系酸化物触
媒、V−Mo系酸化物触媒、Ti−Mo系酸化物触媒
(以上特公昭50−28940号公報)、V−P系酸化
物触媒(特開昭52−148022号公報、特公昭58
−5188号公報)、V−Sb系酸化物触媒(特開昭4
7−33783号公報)、V−Sb−Ti系酸化物触媒
(特開昭54−100994号公報)、V−Sb−W系
酸化物触媒(特開平1−268668号公報、特開平2
−95439号公報、特開平2−261544号公
報)、V−Sb−Sn系酸化物触媒(USP5,00
8,427号)、
[0004] As a method of carrying out only in the presence of a catalyst without using a halogen promoter or a sulfur promoter, an Sb-U-Ni-V-based oxide catalyst (Japanese Patent Publication No.
-14371, US Pat. No. 3,816,506), Sb-UW-based oxide catalysts (USP 3,670,
006), Sb-U-based oxide catalysts (USP 4,
000,178), Bi-Fe-based oxide catalyst (USP 3,670,008), Mo-BS
n-based oxide catalyst (USP 3,670,009), Sb-In-based oxide catalyst (USP 3,678,0)
No. 90), Ga-Sb-based oxide catalyst (US Pat.
No. 47444, US Pat. No. 6,986,646), Sb-Sn
-Based oxide catalyst, Sb-U-based oxide catalyst, As-Sn-based oxide catalyst, As-U-based oxide catalyst, Sn-Ti-based oxide catalyst, Mo-Sn-based oxide catalyst, V-Cr-based oxidation Catalysts, V-Mo-based oxide catalysts, Ti-Mo-based oxide catalysts (JP-B-50-28940) and VP-based oxide catalysts (JP-A-52-148022, JP-B-58)
No.-5188), V-Sb-based oxide catalysts (Japanese Unexamined Patent Publication No.
7-33783), a V-Sb-Ti-based oxide catalyst (Japanese Patent Application Laid-Open No. 54-100994), a V-Sb-W-based oxide catalyst (Japanese Patent Application Laid-Open No. 1-268668,
-95439, JP-A-2-261544), a V-Sb-Sn-based oxide catalyst (USP 5.00
8,427),

【0005】V−Sb−Bi系酸化物触媒(特開平6−
80620号公報)、V−Sb−Fe系酸化物触媒(特
開平6−135922号公報)、Mo−Bi−Al−M
g系酸化物触媒(ソ連特許193484号)、Mo−B
i−Fe−P系酸化物触媒(ソ連特許220982
号)、Mo−P−Bi系酸化物触媒(特開昭47−13
312号公報、特開昭48−16887号公報)、Ga
−Bi−Mo系酸化物触媒(特開平3−58962号公
報)、Bi−Fe−Mo−Al系酸化物触媒(特開平3
−157356号公報)、Mo−Cr−Bi系酸化物触
媒(特開平7−215925号公報)、Ca−Ni−P
−Mo−Bi系酸化物触媒(特開昭50−69018号
公報)、Nb−Cr−Mo−Bi系酸化物触媒(特開平
6−116225号公報)、Bi−V系酸化物触媒(特
開昭63−295545号公報)、V−Sn−Sb−C
u系酸化物触媒(特開平4−275266号公報)、V
−P−W系酸化物触媒(USP4,918,214号明
細書)、
[0005] V-Sb-Bi-based oxide catalysts
80620), V-Sb-Fe-based oxide catalyst (Japanese Patent Application Laid-Open No. 6-135922), Mo-Bi-Al-M
g-based oxide catalyst (US Pat. No. 193484), Mo-B
i-Fe-P-based oxide catalyst (US Pat. No. 2,209,822)
No.), Mo-P-Bi-based oxide catalyst (JP-A-47-13)
312, JP-A-48-16887), Ga
-Bi-Mo-based oxide catalyst (JP-A-3-58962), Bi-Fe-Mo-Al-based oxide catalyst (JP-A-3-58962)
JP-A-157356), Mo-Cr-Bi-based oxide catalyst (JP-A-7-215925), Ca-Ni-P
-Mo-Bi-based oxide catalyst (JP-A-50-69018), Nb-Cr-Mo-Bi-based oxide catalyst (JP-A-6-116225), Bi-V-based oxide catalyst (JP-A-6-116225) JP-A-63-295545), V-Sn-Sb-C
u-based oxide catalyst (JP-A-4-275266), V
-P-W-based oxide catalyst (USP 4,918,214),

【0006】Mo−V−Te−Nb系酸化物触媒(特開
平2−257号公報、特開平5−279313号公
報)、W−V−Te−Nb系酸化物触媒(特開平6−2
28073号公報)、Mo−Te系酸化物触媒(特開平
7−215926号公報)、Mo−Cr−Te系酸化物
触媒(USP5,171,876号明細書)、Ag−B
i−V−Mo系酸化物触媒(特開平3−58961号公
報)、Mo−V−Mn系酸化物触媒(特開平6−135
921号公報)、Mo−Mg系酸化物触媒(特開平5−
194347号公報)、Sn−V−Bi−P系酸化物触
媒(特開平4−247060号公報)、Ta−Mo系酸
化物触媒(特開平5−213848号公報)、P−Mo
系酸化物触媒(特開平6−199767号公報)、Cr
−Sb−W系酸化物触媒(特開平7−157461号公
報)、Mo−Sb−W系酸化物触媒(特開平7−157
462号公報)、Fe−Sb系酸化物触媒(Appli
ed Catalysis A:General 13
6(1996)205ー229)等が知られている。
[0006] Mo-V-Te-Nb-based oxide catalysts (JP-A-2-257 and JP-A-5-279313), WV-Te-Nb-based oxide catalysts (JP-A-6-2)
No. 28073), Mo-Te-based oxide catalyst (JP-A-7-215926), Mo-Cr-Te-based oxide catalyst (US Pat. No. 5,171,876), Ag-B
i-V-Mo-based oxide catalyst (JP-A-3-58961), Mo-V-Mn-based oxide catalyst (JP-A-6-135)
921), a Mo-Mg based oxide catalyst (Japanese Unexamined Patent Publication No.
194347), Sn-V-Bi-P-based oxide catalyst (JP-A-4-247060), Ta-Mo-based oxide catalyst (JP-A-5-213848), P-Mo
Oxide catalyst (JP-A-6-199767), Cr
-Sb-W-based oxide catalyst (JP-A-7-157461), Mo-Sb-W-based oxide catalyst (JP-A-7-157)
462), a Fe-Sb-based oxide catalyst (Appli)
ed Catalyst A: General 13
6 (1996) 205-229) and the like.

【0007】[0007]

【発明が解決しようとする課題】これらの方法のうち、
反応系にハロゲンプロモーターや硫黄プロモーターの添
加を必要とする方法では、反応装置は特殊耐食性材料で
作った反応装置である必要があり、またハロゲンプロモ
ーターの回収を必要とし工業的に有利でない。そのため
プロモーターを添加しない系が望まれる。触媒存在下に
アルカンを気相接触アンモ酸化させてニトリルを製造す
る際の困難な課題の一つは、アルカンの低い反応性のた
めに酸化力の強い触媒の存在下で反応すること及び/ま
たは高い温度で反応することであり、そのために、原料
のアンモニアの燃焼が起こりやすいことである。この課
題については、例えば、「Applied Catal
ysis A:General 113(1994)4
3−57」の中でF.Trifiroらも、プロパンの
アンモ酸化について解決すべき課題として指摘してい
る。アンモニアの燃焼が起こりやすければ、ニトリルの
製造に使われるアンモニアが不足し、そのためにアルカ
ンに対し多量のアンモニアを供給する必要があり工業的
に有利でない。アンモニアの燃焼による損失を少なく
し、効率的にニトリルを製造できることが好ましい。従
来技術において、アンモニアの燃焼を定量的に評価して
いる例は見あたらない。
SUMMARY OF THE INVENTION Among these methods,
In a method that requires the addition of a halogen promoter or a sulfur promoter to the reaction system, the reaction apparatus must be a reaction apparatus made of a special corrosion-resistant material, and the recovery of the halogen promoter is not industrially advantageous. Therefore, a system without the addition of a promoter is desired. One of the difficulties in producing nitriles by gas phase catalytic ammoxidation of alkanes in the presence of a catalyst is that they react in the presence of a strongly oxidizing catalyst due to the low reactivity of the alkanes and / or The reaction is at a high temperature, and therefore, the combustion of the raw material ammonia is likely to occur. Regarding this subject, for example, “Applied Catal
ysis A: General 113 (1994) 4
3-57 ". Trifiro et al. Point out that ammoxidation of propane is a problem to be solved. If the combustion of ammonia is likely to occur, the amount of ammonia used in the production of nitriles becomes insufficient, and it is necessary to supply a large amount of ammonia to the alkane, which is not industrially advantageous. It is preferable that the nitrile can be produced efficiently by reducing the loss due to the combustion of ammonia. In the prior art, there is no example in which the combustion of ammonia is quantitatively evaluated.

【0008】[0008]

【課題を解決するための手段】本発明者らは、アルカン
を原料としてニトリルを製造方法するための新規触媒と
して種々の金属酸化物について鋭意検討した結果、Nb
−Sb−X系の金属酸化物、およびNb−Sb−Cr−
X系の金属酸化物(Xは1種または複数種の特定元素を
表す)の存在下、アルカンを分子状酸素およびアンモニ
アを含む混合ガスにより気相接触酸化させるアンモ酸化
法により、アンモニアの燃焼による損失を抑えて目的と
するニトリルを効率よく製造し得ることを見いだし、本
発明をなすに至った。
The present inventors have conducted intensive studies on various metal oxides as a novel catalyst for producing a nitrile from an alkane as a raw material.
-Sb-X-based metal oxide and Nb-Sb-Cr-
In the presence of an X-based metal oxide (X represents one or more specific elements), the ammoxidation method in which the alkane is oxidized in a gas phase with a mixed gas containing molecular oxygen and ammonia by an ammoxidation method. The present inventors have found that the desired nitrile can be efficiently produced while suppressing the loss, and have accomplished the present invention.

【0009】すなわち、本発明は、下記式(1)により
表されるアンモ酸化触媒である。 Nb1 Sba Crb y n ・・・(1) (式中、XはSn、Fe、Co、Ni、Mn、Ga、I
n、Bi、Zn、Mg、Ca、Sr、Ba、Pb、A
l、Zr、Si、Ti、Ta、Ag、Y、Ce、La、
Cu、B、P、Na、K、Rb、Csの中から選ばれた
少なくとも1種の元素を表し、 0.1≦a≦10 0≦b≦10 0≦y≦10 であり、また、nは他の存在元素の原子価によって決定
される値である。)
That is, the present invention is an ammoxidation catalyst represented by the following formula (1). Nb 1 Sb a Cr b X y O n ··· (1) ( wherein, X is Sn, Fe, Co, Ni, Mn, Ga, I
n, Bi, Zn, Mg, Ca, Sr, Ba, Pb, A
1, Zr, Si, Ti, Ta, Ag, Y, Ce, La,
Represents at least one element selected from Cu, B, P, Na, K, Rb, and Cs, wherein 0.1 ≦ a ≦ 100 ≦ b ≦ 100 ≦ y ≦ 10, and n Is a value determined by the valence of another existing element. )

【0010】また、アルカンを触媒の存在下に、分子状
酸素およびアンモニアを含む混合ガスにより気相接触酸
化させるアンモ酸化法において、触媒として上記式
(1)により表される触媒を用いることを特徴とするニ
トリルの製造方法である。さらに、上記のアルカンとし
て、プロパン、n−ブタンまたはイソブタンを用いるこ
とを特徴とするアクリロニトリルまたはメタアクリロニ
トリルの製造方法である 以下、本発明を詳細に説明する。
Further, in an ammoxidation method in which an alkane is oxidized in a gas phase with a mixed gas containing molecular oxygen and ammonia in the presence of a catalyst, a catalyst represented by the above formula (1) is used as a catalyst. This is a method for producing a nitrile. Further, the present invention is a method for producing acrylonitrile or methacrylonitrile, wherein propane, n-butane or isobutane is used as the alkane.

【0011】アルカンを触媒の存在下に、分子状酸素お
よびアンモニアを含む混合ガスにより接触酸化させるア
ンモ酸化方法において、触媒として下記式(1) Nb1 Sba Crb y n ・・・(1) により表される金属酸化物のうち、aが0.1≦a≦1
0、好ましくは0.5≦a≦7の範囲内であり、bが0
≦b≦10、好ましくは0.1≦b≦7の範囲内の金属
酸化物を触媒として用いる。Crを含有する金属酸化物
を用いると、ニトリルの収率向上が起こり特に好まし
い。X元素を用いる場合には、XはSn、Fe、Co、
Ni、Mn、Ga、In、Bi、Zn、Mg、Ca、S
r、Ba、Pb、Al、Zr、Si、Ti、Ta、A
g、Y、Ce、La、Cu、B、P、Na、K、Rb、
Csの中から選ばれた少なくとも1種の元素を表し、好
ましくはSn、Fe、Co、Ni、Mn、Ga、In、
Zn、Mg、Al、Zr、Si、Ag、K、Rb、Cs
であり、さらに好ましくはSn、Fe、Co、Ni、M
n、Ga、In、Zn、Al、Zr、Si、Agであ
る。Xを用いる場合の組成範囲yは、0<y≦10であ
るが、好ましくは0<y≦1の範囲内である。
[0011] alkane in the presence of a catalyst, in the ammoxidation process for catalytic oxidation with a mixed gas containing molecular oxygen and ammonia, the following formula as a catalyst (1) Nb 1 Sb a Cr b X y O n ··· ( 1) In the metal oxide represented by the formula, a is 0.1 ≦ a ≦ 1
0, preferably in the range of 0.5 ≦ a ≦ 7, and b is 0
A metal oxide within the range of ≦ b ≦ 10, preferably 0.1 ≦ b ≦ 7 is used as a catalyst. It is particularly preferable to use a metal oxide containing Cr because the yield of nitrile is improved. When X element is used, X is Sn, Fe, Co,
Ni, Mn, Ga, In, Bi, Zn, Mg, Ca, S
r, Ba, Pb, Al, Zr, Si, Ti, Ta, A
g, Y, Ce, La, Cu, B, P, Na, K, Rb,
Represents at least one element selected from Cs, preferably Sn, Fe, Co, Ni, Mn, Ga, In,
Zn, Mg, Al, Zr, Si, Ag, K, Rb, Cs
And more preferably Sn, Fe, Co, Ni, M
n, Ga, In, Zn, Al, Zr, Si, and Ag. When X is used, the composition range y is 0 <y ≦ 10, but preferably within the range of 0 <y ≦ 1.

【0012】式(1)に示した触媒をそのまま用いるこ
ともできるが、触媒の表面積を大きくしたり、活性を上
げたり、機械的強度等の物理的性状をを改善したりする
ために担体を用いることもできる。担体としては、シリ
カ、アルミナ、シリカ−アルミナ、チタニア、ジルコニ
ア、マグネシア、シリカ−チタニア、シリカ−ジルコニ
ア等の当分野で公知の担体を用いることができる。好ま
しくは、シリカ、シリカーアルミナ、アルミナ、ジルコ
ニアである。担体の量としては、担体を含めた触媒全重
量の90重量%以下であり、好ましくは70重量%以下
である。
Although the catalyst represented by the formula (1) can be used as it is, a carrier is used in order to increase the surface area of the catalyst, increase the activity, or improve physical properties such as mechanical strength. It can also be used. As the carrier, a carrier known in the art such as silica, alumina, silica-alumina, titania, zirconia, magnesia, silica-titania, silica-zirconia and the like can be used. Preferred are silica, silica-alumina, alumina and zirconia. The amount of the support is 90% by weight or less, preferably 70% by weight or less based on the total weight of the catalyst including the support.

【0013】触媒の調製に用いる原料については特に制
約はなく、使用する元素のシュウ酸塩、硝酸塩、酢酸
塩、酒石酸塩、炭酸塩、金属酸、金属酸アンモニウム
塩、水酸化物、酸化物、塩化物などが使用できる。担体
の原料としては、ゲル、ゾル、酸化物、水酸化物等の
他、触媒調製工程の後に担体成分を生成する原料を用い
ることもできる。これらは触媒に応じて使い分けること
ができる。本発明で用いる触媒は、当分野において通常
用いられる公知の方法を採用することによって調製する
ことができる。例えば次のような方法で調製することが
できる。
The raw materials used for preparing the catalyst are not particularly limited, and the oxalate, nitrate, acetate, tartrate, carbonate, metal acid, ammonium metal oxide, hydroxide, oxide, Chloride can be used. As a raw material of the carrier, a raw material that produces a carrier component after the catalyst preparation step can be used in addition to a gel, a sol, an oxide, a hydroxide, and the like. These can be used properly according to the catalyst. The catalyst used in the present invention can be prepared by employing a known method commonly used in the art. For example, it can be prepared by the following method.

【0014】熱水にシュウ酸水素ニオブを溶解させ、こ
れに酸化アンチモン(III)を加える。酸化アンチモ
ン(III)は酒石酸等に溶解させたものを用いてもよ
い。クロムおよび/またはX元素1種以上を用いる場合
はSn、Fe、Co、Ni、Mn、Ga、In、Bi、
Zn、Mg、Ca、Sr、Ba、Pb、Al、Zr、S
i、Ti、Ta、Ag、Y、Ce、La、Cu、B、
P、Na、K、Rb、Csの中から選ばれた少なくとも
1種以上の硝酸塩等の水溶液またはスラリーを加える。
さらに必要に応じて、シリカ、アルミナなどの担体を加
え混合撹拌する。この溶液またはスラリーを、噴霧乾燥
法、蒸発乾固法、真空乾燥法等の方法で乾燥した後、3
00℃〜1000℃、好ましくは500℃〜1000
℃、さらに好ましくは700℃〜900℃の温度範囲
で、0.5時間〜50時間、好ましくは0.5時間〜2
0時間、回転焼成炉、バンド焼成炉、流動焼成炉、固定
焼成炉等で焼成して調製する。焼成雰囲気については空
気中で行う方法が一般的であるが、酸素雰囲気中または
窒素、アルゴン、ヘリウム等の不活性ガス中、または真
空中で実施してもよい。
Niobium hydrogen oxalate is dissolved in hot water, and antimony (III) oxide is added thereto. Antimony (III) oxide may be used as dissolved in tartaric acid or the like. When one or more elements of chromium and / or X are used, Sn, Fe, Co, Ni, Mn, Ga, In, Bi,
Zn, Mg, Ca, Sr, Ba, Pb, Al, Zr, S
i, Ti, Ta, Ag, Y, Ce, La, Cu, B,
An aqueous solution or slurry of at least one or more nitrates selected from P, Na, K, Rb, and Cs is added.
If necessary, a carrier such as silica or alumina is added and mixed and stirred. This solution or slurry is dried by a method such as spray drying, evaporation to dryness, or vacuum drying, and then dried.
00 ° C to 1000 ° C, preferably 500 ° C to 1000 ° C
C., more preferably in a temperature range of 700C to 900C for 0.5 hours to 50 hours, preferably 0.5 hours to 2 hours.
It is prepared by baking in a rotary baking furnace, band baking furnace, fluidized baking furnace, fixed baking furnace, or the like for 0 hours. The firing atmosphere is generally performed in the air, but may be performed in an oxygen atmosphere, in an inert gas such as nitrogen, argon, or helium, or in a vacuum.

【0015】これらの触媒の形態については特に限定さ
れない。乾燥後または焼成後に打錠機、押出成型機、造
粒機等の方法で成型して、ペレット状、貫通孔を有する
リング状、球状等の形態にしてもよいし、また噴霧乾燥
法等で調製した触媒は特に成型せずそのまま用いること
もできる。本発明の触媒を用いて気相接触酸化反応を行
う場合の原料であるアルカンについては特に制約はない
が、得られるニトリルの有用性を考えると、プロパン、
n−ブタン、イソブタンを用いるのがよい。本発明の触
媒はオレフィンからニトリルを製造することもできるの
で、アルカン中にオレフィンが含有されていても問題は
ない。
[0015] The form of these catalysts is not particularly limited. After drying or baking, it may be molded by a method such as a tableting machine, an extrusion molding machine, a granulator, or the like, into a pellet, a ring having a through hole, a sphere, or the like, or by a spray drying method or the like. The prepared catalyst can be used as it is without molding. There is no particular limitation on the alkane that is the raw material when performing the gas phase catalytic oxidation reaction using the catalyst of the present invention, but considering the usefulness of the obtained nitrile, propane,
It is preferable to use n-butane and isobutane. Since the catalyst of the present invention can also produce a nitrile from an olefin, there is no problem even if the alkane contains the olefin.

【0016】分子状酸素として通常は空気が使用される
が、酸素でもよい。希釈ガスを用いる場合は、窒素、ア
ルゴン、ヘリウム、二酸化炭素などが使用される。また
希釈ガスとして水蒸気を併せて使用することがアンモニ
アの燃焼をさらに抑制するうえで好ましい。本反応に供
給するアルカン、アンモニア、分子状酸素の割合は、ア
ルカンに対して、アンモニアは0.5〜10モル、好ま
しくは0.5〜5モル、特に好ましくは0.8〜3モル
倍量の範囲である。また酸素については、アルカンに対
して、0.5〜10モル、好ましくは0.8〜7モル、
特に好ましくは1〜5モル倍量の範囲である。特にアル
カンをアンモニア、酸素に対して大過剰に用いたガス組
成のものは、大量の未反応アルカンを分離回収すること
や、酸素として純酸素を用いるために工業的に有利でな
く好ましくない。
Although air is usually used as molecular oxygen, oxygen may be used. When a diluent gas is used, nitrogen, argon, helium, carbon dioxide or the like is used. In addition, it is preferable to use steam as a diluent gas in order to further suppress the combustion of ammonia. The ratio of the alkane, ammonia, and molecular oxygen supplied to the reaction is 0.5 to 10 mol, preferably 0.5 to 5 mol, particularly preferably 0.8 to 3 mol, per mol of the alkane. Range. As for oxygen, 0.5 to 10 mol, preferably 0.8 to 7 mol, based on alkane,
Particularly preferably, it is in the range of 1 to 5 mole times. In particular, those having a gas composition in which an alkane is used in a large excess with respect to ammonia and oxygen are not industrially advantageous and are not preferable because a large amount of unreacted alkane is separated and recovered, and pure oxygen is used as oxygen.

【0017】本反応のアルカン、アンモニア、酸素、希
釈ガスを合わせた混合ガスの圧力は、通常大気圧下で実
施することができるが、0.1〜10atmの範囲内で
行うこともできる。本反応は400℃〜700℃で実施
することができ、好ましいのは470℃〜600℃の範
囲内である。温度があまり低い場合には反応速度の低下
を招き、またあまり高い場合は熱分解等による副生物が
多くなるので好ましくない。本反応の混合ガスの空間速
度WHSVは、通常10〜10000Ncc・hー1
g、好ましくは100〜5000Ncc・hー1/gの範
囲である。反応器方式は、固定床、流動床、移動床等の
いずれも採用できる。また単流方式でもリサイクル方式
でもよい。
The pressure of the mixed gas of the alkane, ammonia, oxygen and the diluent gas in the present reaction can be generally carried out under atmospheric pressure, but can also be carried out within the range of 0.1 to 10 atm. This reaction can be carried out at 400 ° C to 700 ° C, preferably in the range of 470 ° C to 600 ° C. If the temperature is too low, the reaction rate will be reduced, and if it is too high, by-products such as thermal decomposition will increase, which is not preferable. The space velocity WHSV of the mixed gas in this reaction is usually 10 to 10000 Ncc · h -1 /
g, preferably in the range of 100 to 5000 Ncc · h -1 / g. As the reactor system, any of a fixed bed, a fluidized bed, a moving bed and the like can be adopted. Further, a single-flow system or a recycling system may be used.

【0018】[0018]

【発明の実施の形態】以下、本発明を実施例などを用い
て更に詳細に説明する。各例において空間速度、プロパ
ン転化率、アクリロニトリル選択率、アクリロニトリル
収率、アンモニア燃焼率はそれぞれ次の定義に従う。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in more detail with reference to embodiments. In each case, the space velocity, the propane conversion, the acrylonitrile selectivity, the acrylonitrile yield, and the ammonia combustion rate follow the following definitions, respectively.

【0019】[0019]

【数1】 (Equation 1)

【0020】[0020]

【数2】 (Equation 2)

【0021】[0021]

【数3】 (Equation 3)

【00222】[00222]

【数4】 (Equation 4)

【0023】[0023]

【数5】 (Equation 5)

【0024】(実施例1)組成式が「Nb1 Sb
3 n 」で示される触媒を次のようにして調製した。水
250gにシュウ酸水素ニオブ(酸化ニオブ(V)とし
て14wt%)25.0gを加え煮沸し溶解させる。こ
れに酸化アンチモン(III)11.6gを加え撹拌し
ながら1時間煮沸した。この混合液を220℃に加熱し
たプレート上に噴霧し、得られた乾燥物を空気中600
℃で2時間焼成し、さらに900℃で2時間焼成して触
媒を得た。この触媒3gを内径10mmの管状反応器に
充填し、プロパン:アンモニア:酸素:ヘリウム:水=
1:1.2:2.5:12.6:4.3のモル比になる
よう各ガスを供給し、表1に示す条件で気相接触反応を
行った。反応生成物の分析はオンラインガスクロマトグ
ラフィーで行った。得られた結果を表1に示す。
(Example 1) When the composition formula is "Nb 1 Sb
The catalyst represented by 3 O n "was prepared as follows. 25.0 g of niobium hydrogen oxalate (14 wt% as niobium oxide (V)) is added to 250 g of water, and the mixture is boiled and dissolved. 11.6 g of antimony (III) oxide was added thereto and the mixture was boiled for 1 hour with stirring. This mixed solution is sprayed on a plate heated to 220 ° C., and the obtained dried product is
C. for 2 hours, and further calcined at 900.degree. C. for 2 hours to obtain a catalyst. 3 g of this catalyst was charged into a tubular reactor having an inner diameter of 10 mm, and propane: ammonia: oxygen: helium: water =
Each gas was supplied at a molar ratio of 1: 1.2: 2.5: 12.6: 4.3, and a gas phase contact reaction was performed under the conditions shown in Table 1. Analysis of the reaction product was performed by online gas chromatography. Table 1 shows the obtained results.

【0025】(実施例2)組成式が「Nb1 Sb4 Cr
1 n 」で示される触媒を次のようにして調製した。水
200gに酒石酸38gを溶解させ、さらに酸化アンチ
モン(III)12.4gを加え煮沸して溶解させる。
これに、熱水100gにシュウ酸水素ニオブ(酸化ニオ
ブ(V)として14wt%)20.0gを溶解させた水
溶液を添加した。これに、硝酸クロム・9水塩8.5g
を50gの水に溶解させた水溶液を添加し、混合撹拌し
た。この混合液を220℃に加熱したプレート上に噴霧
し、得られた乾燥物を空気中600℃で2時間焼成し、
さらに800℃で2時間焼成して触媒を得た。この触媒
3gを内径10mmの管状反応器に充填し、プロパン:
アンモニア:酸素:ヘリウム:水=1:1.2:2.
5:12.6:4.3のモル比になるよう各ガスを供給
し、表1に示す条件で気相接触反応を行った。反応生成
物の分析はオンラインガスクロマトグラフィーで行っ
た。得られた結果を表1に示す。
Example 2 The composition formula is “Nb 1 Sb 4 Cr”
The catalyst was prepared as indicated in 1 O n "in the following manner. 38 g of tartaric acid is dissolved in 200 g of water, and 12.4 g of antimony (III) oxide is further added, followed by boiling to dissolve.
To this, an aqueous solution in which 20.0 g of niobium hydrogen oxalate (14 wt% as niobium oxide (V)) was dissolved in 100 g of hot water was added. Add 8.5g of chromium nitrate / 9 hydrate
Was dissolved in 50 g of water, and the mixture was mixed and stirred. This mixed solution was sprayed on a plate heated to 220 ° C., and the obtained dried product was fired in air at 600 ° C. for 2 hours.
Further, the catalyst was calcined at 800 ° C. for 2 hours to obtain a catalyst. 3 g of this catalyst was charged into a tubular reactor having an inner diameter of 10 mm, and propane:
Ammonia: oxygen: helium: water = 1: 1.2: 2.
Each gas was supplied at a molar ratio of 5: 12.6: 4.3, and a gas phase contact reaction was performed under the conditions shown in Table 1. Analysis of the reaction product was performed by online gas chromatography. Table 1 shows the obtained results.

【0026】(実施例3)組成式が「Nb1 Sb4 Cr
1 Fe0.1 n 」で示される触媒を次のようにして調製
した。水200gに酒石酸38gを溶解させ、さらに酸
化アンチモン(III)12.4gを加え煮沸して溶解
させる。これに、熱水100gにシュウ酸水素ニオブ
(酸化ニオブ(V)として14wt%)20.0gを溶
解させた水溶液を添加した。これに、硝酸クロム・9水
塩8.5gと硝酸鉄・9水塩0.89gを50gの水に
溶解させた水溶液を添加し、混合撹拌した。この混合液
を220℃に加熱したプレート上に噴霧し、得られた乾
燥物を空気中600℃で2時間焼成し、さらに800℃
で2時間焼成して触媒を得た。この触媒3gを内径10
mmの管状反応器に充填し、プロパン:アンモニア:酸
素:ヘリウム:水=1:1.2:2.5:12.6:
4.3のモル比になるよう各ガスを供給し、表1に示す
条件で気相接触反応を行った。反応生成物の分析はオン
ラインガスクロマトグラフィーで行った。得られた結果
を表1に示す。
Example 3 The composition formula is “Nb 1 Sb 4 Cr”
It was prepared by a catalyst represented by 1 Fe 0.1 O n 'as follows. 38 g of tartaric acid is dissolved in 200 g of water, and 12.4 g of antimony (III) oxide is further added, followed by boiling to dissolve. To this, an aqueous solution in which 20.0 g of niobium hydrogen oxalate (14 wt% as niobium oxide (V)) was dissolved in 100 g of hot water was added. To this, an aqueous solution in which 8.5 g of chromium nitrate / 9 hydrate and 0.89 g of iron nitrate / 9 hydrate were dissolved in 50 g of water was added and mixed and stirred. This mixed solution is sprayed on a plate heated to 220 ° C., and the obtained dried product is fired in air at 600 ° C. for 2 hours.
For 2 hours to obtain a catalyst. 3 g of this catalyst is
mm: tubular reactor, and propane: ammonia: oxygen: helium: water = 1: 1.2: 2.5: 12.6:
Each gas was supplied at a molar ratio of 4.3, and a gas phase contact reaction was performed under the conditions shown in Table 1. Analysis of the reaction product was performed by online gas chromatography. Table 1 shows the obtained results.

【0027】(実施例4)組成式が「Nb1 Sb4 Cr
1 Ga0.1 n 」で示される触媒を次のようにして調製
した。水200gに酒石酸38gを溶解させ、さらに酸
化アンチモン(III)12.4gを加え煮沸して溶解
させる。これに、熱水100gにシュウ酸水素ニオブ
(酸化ニオブ(V)として14wt%)20.0gを溶
解させた水溶液を添加した。これに、硝酸クロム・9水
塩8.5gと硝酸ガリウム(ガリウムとして18.9w
t%)0.78gを50gの水に溶解させた水溶液を添
加し、混合撹拌した。この混合液を220℃に加熱した
プレート上に噴霧し、得られた乾燥物を空気中600℃
で2時間焼成し、さらに800℃で2時間焼成して触媒
を得た。この触媒3gを内径10mmの管状反応器に充
填し、プロパン:アンモニア:酸素:ヘリウム:水=
1:1.2:2.5:12.6:4.3のモル比になる
よう各ガスを供給し、表1に示す条件で気相接触反応を
行った。反応生成物の分析はオンラインガスクロマトグ
ラフィーで行った。得られた結果を表1に示す。
Example 4 The composition formula is “Nb 1 Sb 4 Cr”
It was prepared by a catalyst represented by 1 Ga 0.1 O n 'as follows. 38 g of tartaric acid is dissolved in 200 g of water, and 12.4 g of antimony (III) oxide is further added, followed by boiling to dissolve. To this, an aqueous solution in which 20.0 g of niobium hydrogen oxalate (14 wt% as niobium oxide (V)) was dissolved in 100 g of hot water was added. 8.5 g of chromium nitrate / 9 hydrate and gallium nitrate (18.9 w / gallium)
An aqueous solution in which 0.78 g of (t%) was dissolved in 50 g of water was added, followed by mixing and stirring. This mixture was sprayed onto a plate heated to 220 ° C., and the obtained dried product was dried in air at 600 ° C.
At 800 ° C. for 2 hours to obtain a catalyst. 3 g of this catalyst was charged into a tubular reactor having an inner diameter of 10 mm, and propane: ammonia: oxygen: helium: water =
Each gas was supplied at a molar ratio of 1: 1.2: 2.5: 12.6: 4.3, and a gas phase contact reaction was performed under the conditions shown in Table 1. Analysis of the reaction product was performed by online gas chromatography. Table 1 shows the obtained results.

【0028】(実施例5)組成式が「Nb1 Sb4 Cr
1 Mn0.1 n 」で示される触媒を次のようにして調製
した。水200gに酒石酸38gを溶解させ、さらに酸
化アンチモン(III)12.4gを加え煮沸して溶解
させる。これに、熱水100gにシュウ酸水素ニオブ
(酸化ニオブ(V)として14wt%)20.0gを溶
解させた水溶液を添加した。これに、硝酸クロム・9水
塩8.5gと硝酸マンガン・6水塩0.61gを50g
の水に溶解させた水溶液を添加し、混合撹拌した。この
混合液を220℃に加熱したプレート上に噴霧し、得ら
れた乾燥物を空気中600℃で2時間焼成し、さらに8
00℃で2時間焼成して触媒を得た。この触媒3gを内
径10mmの管状反応器に充填し、プロパン:アンモニ
ア:酸素:ヘリウム:水=1:1.2:2.5:12.
6:4.3のモル比になるよう各ガスを供給し、表1に
示す条件で気相接触反応を行った。反応生成物の分析は
オンラインガスクロマトグラフィーで行った。得られた
結果を表1に示す。
Example 5 The composition formula is "Nb 1 Sb 4 Cr
It was prepared by a catalyst represented by 1 Mn 0.1 O n 'as follows. 38 g of tartaric acid is dissolved in 200 g of water, and 12.4 g of antimony (III) oxide is further added, followed by boiling to dissolve. To this, an aqueous solution in which 20.0 g of niobium hydrogen oxalate (14 wt% as niobium oxide (V)) was dissolved in 100 g of hot water was added. To this, 8.5 g of chromium nitrate 9 hydrate and 0.61 g of manganese nitrate 6 hydrate 50 g
An aqueous solution dissolved in water was added and mixed and stirred. This mixed solution was sprayed on a plate heated to 220 ° C., and the obtained dried product was baked in air at 600 ° C. for 2 hours.
The catalyst was obtained by calcining at 00 ° C. for 2 hours. 3 g of this catalyst was charged into a tubular reactor having an inner diameter of 10 mm, and propane: ammonia: oxygen: helium: water = 1: 1.2: 2.5: 12.
Each gas was supplied at a molar ratio of 6: 4.3, and a gas phase contact reaction was performed under the conditions shown in Table 1. Analysis of the reaction product was performed by online gas chromatography. Table 1 shows the obtained results.

【0029】(実施例6)組成式が「Nb1 Sb4 Cr
1 Ni0.1 n 」で示される触媒を次のようにして調製
した。水200gに酒石酸38gを溶解させ、さらに酸
化アンチモン(III)12.4gを加え煮沸して溶解
させる。これに、熱水100gにシュウ酸水素ニオブ
(酸化ニオブ(V)として14wt%)20.0gを溶
解させた水溶液を添加した。これに、硝酸クロム・9水
塩8.5gと硝酸ニッケル・6水塩0.61gを50g
の水に溶解させた水溶液を添加し、混合撹拌した。この
混合液を220℃に加熱したプレート上に噴霧し、得ら
れた乾燥物を空気中600℃で2時間焼成し、さらに8
00℃で2時間焼成して触媒を得た。この触媒3gを内
径10mmの管状反応器に充填し、プロパン:アンモニ
ア:酸素:ヘリウム:水=1:1.2:2.5:12.
6:4.3のモル比になるよう各ガスを供給し、表1に
示す条件で気相接触反応を行った。反応生成物の分析は
オンラインガスクロマトグラフィーで行った。得られた
結果を表1に示す。
Example 6 The composition formula is “Nb 1 Sb 4 Cr”
1 Ni 0.1 O n "was prepared as follows. 38 g of tartaric acid is dissolved in 200 g of water, and 12.4 g of antimony (III) oxide is further added, followed by boiling to dissolve. To this, an aqueous solution in which 20.0 g of niobium hydrogen oxalate (14 wt% as niobium oxide (V)) was dissolved in 100 g of hot water was added. To this, 8.5 g of chromium nitrate 9 hydrate and 0.61 g of nickel nitrate 6 hydrate 50 g
An aqueous solution dissolved in water was added and mixed and stirred. This mixed solution was sprayed on a plate heated to 220 ° C., and the obtained dried product was baked in air at 600 ° C. for 2 hours.
The catalyst was obtained by calcining at 00 ° C. for 2 hours. 3 g of this catalyst was charged into a tubular reactor having an inner diameter of 10 mm, and propane: ammonia: oxygen: helium: water = 1: 1.2: 2.5: 12.
Each gas was supplied at a molar ratio of 6: 4.3, and a gas phase contact reaction was performed under the conditions shown in Table 1. Analysis of the reaction product was performed by online gas chromatography. Table 1 shows the obtained results.

【0030】(比較例1)組成式が「Sb1 n 」で示
される触媒を次のようにして調製した。水200gに酸
化アンチモン(III)11.6gを加え撹拌しながら
1時間煮沸した。これを220℃に加熱したプレート上
に噴霧し、得られた乾燥物を空気中600℃で2時間焼
成し、さらに800℃で2時間焼成して触媒を得た。こ
の触媒3gを内径10mmの管状反応器に充填し、プロ
パン:アンモニア:酸素:ヘリウム:水=1:1.2:
2.5:12.6:4.3のモル比になるよう各ガスを
供給し、表1に示す条件で気相接触反応を行った。反応
生成物の分析はオンラインガスクロマトグラフィーで行
った。得られた結果を表1に示す。
[0030] A catalyst was prepared in which (Comparative Example 1) the composition formula is represented by "Sb 1 O n" in the following manner. 11.6 g of antimony (III) oxide was added to 200 g of water, and the mixture was boiled for 1 hour with stirring. This was sprayed on a plate heated to 220 ° C., and the obtained dried product was fired in air at 600 ° C. for 2 hours and further fired at 800 ° C. for 2 hours to obtain a catalyst. 3 g of this catalyst was charged into a tubular reactor having an inner diameter of 10 mm, and propane: ammonia: oxygen: helium: water = 1: 1.2:
Each gas was supplied at a molar ratio of 2.5: 12.6: 4.3, and a gas phase contact reaction was performed under the conditions shown in Table 1. Analysis of the reaction product was performed by online gas chromatography. Table 1 shows the obtained results.

【0031】(比較例2)組成式が「Nb1 n 」で示
される触媒を次のようにして調製した。水250gにシ
ュウ酸水素ニオブ(酸化ニオブ(V)として14wt
%)25.0gを加え煮沸し溶解させる。これを1時間
煮沸した後、を220℃に加熱したプレート上に噴霧
し、得られた乾燥物を空気中600℃で2時間焼成し、
さらに800℃で2時間焼成して触媒を得た。この触媒
3gを内径10mmの管状反応器に充填し、プロパン:
アンモニア:酸素:ヘリウム:水=1:1.2:2.
5:12.6:4.3のモル比になるよう各ガスを供給
し、表1に示す条件で気相接触反応を行った。反応生成
物の分析はオンラインガスクロマトグラフィーで行っ
た。得られた結果を表1に示す。
[0031] A catalyst was prepared in which (Comparative Example 2) compositional formula represented by "Nb 1 O n" in the following manner. Niobium hydrogen oxalate (14 wt% as niobium oxide (V)) in 250 g of water
%) 25.0 g is added and boiled to dissolve. This was boiled for 1 hour, sprayed on a plate heated to 220 ° C., and the obtained dried product was baked in air at 600 ° C. for 2 hours,
Further, the catalyst was calcined at 800 ° C. for 2 hours to obtain a catalyst. 3 g of this catalyst was charged into a tubular reactor having an inner diameter of 10 mm, and propane:
Ammonia: oxygen: helium: water = 1: 1.2: 2.
Each gas was supplied at a molar ratio of 5: 12.6: 4.3, and a gas phase contact reaction was performed under the conditions shown in Table 1. Analysis of the reaction product was performed by online gas chromatography. Table 1 shows the obtained results.

【0032】(比較例3)組成式が「Mo1 Bi0.66
n 」で示される触媒を次のようにして調製した。水10
0gにパラモリブデン酸アンモニウム4水塩10.9g
を加え90℃に加熱し溶解させる。これを、10%硝酸
53gに硝酸ビスマス5水塩20.0gを溶解した液に
添加した。この混合液を220℃に加熱したプレート上
に噴霧し、得られた乾燥物を空気中600℃で2時間焼
成して触媒を得た。この触媒3gを内径10mmの管状
反応器に充填し、プロパン:アンモニア:酸素:ヘリウ
ム:水=1:1.2:2.5:12.6:4.3のモル
比になるよう各ガスを供給し、表1に示す条件で気相接
触反応を行った。反応生成物の分析はオンラインガスク
ロマトグラフィーで行った。得られた結果を表1に示
す。
(Comparative Example 3) The composition formula is “Mo 1 Bi 0.66 O
n "was prepared as follows. Water 10
10.9 g of ammonium paramolybdate tetrahydrate in 0 g
And heat to 90 ° C. to dissolve. This was added to a solution in which 20.0 g of bismuth nitrate pentahydrate was dissolved in 53 g of 10% nitric acid. This mixed solution was sprayed on a plate heated to 220 ° C., and the obtained dried product was calcined in air at 600 ° C. for 2 hours to obtain a catalyst. 3 g of this catalyst was charged into a tubular reactor having an inner diameter of 10 mm, and each gas was supplied in a molar ratio of propane: ammonia: oxygen: helium: water = 1: 1.2: 2.5: 12.6: 4.3. The mixture was supplied and subjected to a gas phase contact reaction under the conditions shown in Table 1. Analysis of the reaction product was performed by online gas chromatography. Table 1 shows the obtained results.

【0033】[0033]

【表1】 [Table 1]

【0034】[0034]

【発明の効果】本発明の方法によれば、アルカンを原料
としアンモニアの燃焼が少なく、且つ目的とするニトリ
ルを効率よく製造することができる。
According to the method of the present invention, an alkane is used as a raw material, the combustion of ammonia is small, and the target nitrile can be produced efficiently.

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 FI 技術表示箇所 C07C 253/24 9357−4H C07C 253/24 // C07B 61/00 300 C07B 61/00 300 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification number Agency reference number FI Technical display location C07C 253/24 9357-4H C07C 253/24 // C07B 61/00 300 C07B 61/00 300

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 下記式(1)により表されるアンモ酸化
触媒。 Nb1 Sba Crb y n ・・・(1) (式中、XはSn、Fe、Co、Ni、Mn、Ga、I
n、Bi、Zn、Mg、Ca、Sr、Ba、Pb、A
l、Zr、Si、Ti、Ta、Ag、Y、Ce、La、
Cu、B、P、Na、K、Rb、Csの中から選ばれた
少なくとも1種の元素を表し、 0.1≦a≦10 0≦b≦10 0≦y≦10 であり、また、nは他の存在元素の原子価によって決定
される値である。)
1. An ammoxidation catalyst represented by the following formula (1). Nb 1 Sb a Cr b X y O n ··· (1) ( wherein, X is Sn, Fe, Co, Ni, Mn, Ga, I
n, Bi, Zn, Mg, Ca, Sr, Ba, Pb, A
1, Zr, Si, Ti, Ta, Ag, Y, Ce, La,
Represents at least one element selected from Cu, B, P, Na, K, Rb, and Cs, wherein 0.1 ≦ a ≦ 100 ≦ b ≦ 100 ≦ y ≦ 10, and n Is a value determined by the valence of another existing element. )
【請求項2】 アルカンを触媒の存在下に、分子状酸素
およびアンモニアを含む混合ガスにより気相接触酸化さ
せるアンモ酸化法において、触媒として請求項1の触媒
を用いることを特徴とするニトリルの製造方法。
2. An ammoxidation method in which an alkane is oxidized in the gas phase with a mixed gas containing molecular oxygen and ammonia in the presence of a catalyst, wherein the catalyst according to claim 1 is used as a catalyst. Method.
【請求項3】 請求項2のアルカンとして、プロパン、
n−ブタンまたはイソブタンを用いることを特徴とする
アクリロニトリルまたはメタアクリロニトリルの製造方
法。
3. The alkane of claim 2, wherein the alkane is propane,
A method for producing acrylonitrile or methacrylonitrile, wherein n-butane or isobutane is used.
JP19418196A 1996-06-13 1996-06-13 Ammoxidation catalyst and method for producing nitrile using the same Expired - Lifetime JP3894986B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19418196A JP3894986B2 (en) 1996-06-13 1996-06-13 Ammoxidation catalyst and method for producing nitrile using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19418196A JP3894986B2 (en) 1996-06-13 1996-06-13 Ammoxidation catalyst and method for producing nitrile using the same

Publications (2)

Publication Number Publication Date
JPH101465A true JPH101465A (en) 1998-01-06
JP3894986B2 JP3894986B2 (en) 2007-03-22

Family

ID=16320292

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19418196A Expired - Lifetime JP3894986B2 (en) 1996-06-13 1996-06-13 Ammoxidation catalyst and method for producing nitrile using the same

Country Status (1)

Country Link
JP (1) JP3894986B2 (en)

Also Published As

Publication number Publication date
JP3894986B2 (en) 2007-03-22

Similar Documents

Publication Publication Date Title
JP4346822B2 (en) Molybdenum-vanadium catalyst for the low temperature selective oxidation of propylene, its production and use
JP3500663B2 (en) Method for producing acrylic acid
US6458742B1 (en) Catalyst for the manufacture of acrylonitrile
EP0010902B1 (en) Process for the production of (meth)acrylic acid by the catalytic vapour phase oxidation of isobutane or propane
KR101331766B1 (en) Process for producing catalyst for use in producing unsaturated aldehyde and unsaturated carboxylic acid, and process for producing unsaturated aldehyde and unsaturated carboxylic acid
JP3669077B2 (en) Nitrile production method
JP4346823B2 (en) Catalyst for oxidation of ethane to acetic acid
JP4081824B2 (en) Acrylic acid production method
JPH1135519A (en) Production of acrylic acid
JPH06228073A (en) Production of nitrile
JPH07289907A (en) Production of catalyst for producing nitrile
JP3855298B2 (en) Process for producing alkene and / or oxygen-containing compound
JP3818697B2 (en) Ammoxidation catalyst and method for producing nitrile using the same
JP3894986B2 (en) Ammoxidation catalyst and method for producing nitrile using the same
JP3117265B2 (en) Method for producing α, β-unsaturated nitrile
JP3768289B2 (en) Ammoxidation catalyst and method for producing nitrile using the same
JP2520279B2 (en) Method for producing acrylonitrile
JPS6246538B2 (en)
JP3982869B2 (en) Catalyst for nitrile compound production
JP2000169420A (en) Production of acrylic acid
JP3966588B2 (en) Ammoxidation catalyst composition and method for producing nitrile compound using the same
JP3966573B2 (en) Catalyst for nitrile compound production
JPH11246505A (en) Production of unsaturated nitrile
JP2002088012A (en) Method for producing (meth)acrylic acid
JP3306950B2 (en) Nitrile manufacturing method

Legal Events

Date Code Title Description
A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20060906

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20060912

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20061110

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20061212

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20061213

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20091222

Year of fee payment: 3

S531 Written request for registration of change of domicile

Free format text: JAPANESE INTERMEDIATE CODE: R313531

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20091222

Year of fee payment: 3

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20101222

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20101222

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20111222

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20111222

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20121222

Year of fee payment: 6

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20121222

Year of fee payment: 6

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131222

Year of fee payment: 7

EXPY Cancellation because of completion of term