JP6150450B2 - 担体及び担体に塗布した触媒活性材料から成る触媒の製法 - Google Patents
担体及び担体に塗布した触媒活性材料から成る触媒の製法 Download PDFInfo
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- JP6150450B2 JP6150450B2 JP2009551205A JP2009551205A JP6150450B2 JP 6150450 B2 JP6150450 B2 JP 6150450B2 JP 2009551205 A JP2009551205 A JP 2009551205A JP 2009551205 A JP2009551205 A JP 2009551205A JP 6150450 B2 JP6150450 B2 JP 6150450B2
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- 229910052714 tellurium Inorganic materials 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- ZCUFMDLYAMJYST-UHFFFAOYSA-N thorium dioxide Chemical compound O=[Th]=O ZCUFMDLYAMJYST-UHFFFAOYSA-N 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- GXZZNUGESLEFGV-UHFFFAOYSA-N trioxomolybdenum;hydrate Chemical group O.O=[Mo](=O)=O GXZZNUGESLEFGV-UHFFFAOYSA-N 0.000 description 1
- PBYZMCDFOULPGH-UHFFFAOYSA-N tungstate Chemical compound [O-][W]([O-])(=O)=O PBYZMCDFOULPGH-UHFFFAOYSA-N 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- LSGOVYNHVSXFFJ-UHFFFAOYSA-N vanadate(3-) Chemical compound [O-][V]([O-])([O-])=O LSGOVYNHVSXFFJ-UHFFFAOYSA-N 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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Description
− 元素Mo及びVを含有する少なくとも1種の微細な複合元素酸化物及び
− モリブデンの酸化物及び高めた温度及び分子酸素の作用下でモリブデンの酸化物を形成するモリブデンの化合物から成る群から選択した少なくとも1種の微細物質Sから成る微細混合物であることを特徴とする。
350℃におけるMoO3の生成完了後、通常550〜650℃で相応する温度を有する空気流中における4〜8時間の熱処理で、MoO3の比表面積OMを≦2m2/gに抑えるために、十分である。
Na ≦8質量ppm
K ≦29質量ppm
Fe ≦4質量ppm
Pb ≦1質量ppm
Al ≦4質量ppm
Cr ≦2質量ppm
Ca ≦2質量ppm
Cu ≦2質量ppm
Mg ≦5質量ppm
Ni ≦2質量ppm
Si ≦5質量ppm
Sn ≦1質量ppm、及び
Ti ≦2質量ppm
しかし勿論、市販名"POS"のClimax Molybdenum Marketing CorporationのMoO3を本発明により使用することもできる。
NH4 ≦0.01質量%
Al ≦10質量ppm
Ca ≦5質量ppm
Co ≦10質量ppm
Cr ≦5質量ppm
Cu ≦5質量ppm
Fe ≦10質量ppm
K ≦80質量ppm
Mg ≦5質量ppm
Mn ≦10質量ppm
Na ≦20質量ppm
Ni ≦5質量ppm
P ≦10質量ppm
Pb ≦10質量ppm
Si ≦10質量ppm
Sn ≦10質量ppm
Ti ≦5質量ppm
V ≦10質量ppm
Zn ≦10質量ppm、及び
Zr ≦10質量ppm
付随する粒径分布を図2に表す。その際、横座標は直径[μm]を対数目盛で表す。縦座標は、各直径又はそれより小さい直径を有するMoO3の容量割合を表す。
Mo12VaX1 bX2 cX3 dX4 eX5 fX6 gOn (I)
[式中、変数は下記のものを表す:X1=W、Nb、Ta、Cr及び/又はCe、X2=Cu、Ni、Co、Fe、Mn及び/又はZn、X3=Sb及び/又はBi、X4=1種以上のアルカリ金属(Li、Na、K、Rb、Cs)及び/又はH、X5=1種以上のアルカリ土類金属(Mg、Ca、Sr、Ba)、X6=Si、Al、Ti及び/又はZr、a=1〜6、b=0.2〜4、c=0〜18、有利には0.5〜18、d=0〜40、e=0〜2、f=0〜4、g=0〜40及びn=I中の酸素と異なる元素の原子価及び頻度により決まる数]を満たす。
Mo12VaX1 bX2 cX5 fX6 gOn (II)
[式中、変数は下記のものを表す:X1=W及び/又はNb、X2=Cu及び/又はNi、X5=Co及び/又はSr、X6=Si及び/又はAl、a=3〜4.5、b=1〜1.5、c=0.75〜2.5、f=0〜0.5、g=0〜8及びn=II中の酸素と異なる元素の原子価及び頻度により決まる数]を満たす。
Mo1VbM1 cM2 d (III)
[式中、M1=Te及び/又はSb、M2=Nb、Ta、W、Ti、Al、Zr、Cr、Mn、Ga、Fe、Ru、Co、Rh、Ni、Pd、Pt、La、Bi、Ce、Sn、Zn、Si、Na、Li、K、Mg、Ag、Au及びInを含む群からなる少なくとも1種の元素、b=0.01〜1、c=>0〜1及びd=>0〜1である]の前記元素組合せを含有する。
Mo1VbM1 cM2 dOn (IV)
[式中、変数は化学量論IIIに関して記載したものを表し、n=(IV)中の酸素とは異なる元素の原子価及び頻度により決まる数である]の複合元素酸化物活性材料である。
R=Pi/(Pi+Pk)
により定義された強度比であるものであるようなものに好適である。有利には前記X線回折図は、最大値が2Θ=50±0.3゜である回折反射を有さない。
1.比較例
WO2004/108267の実施例1に記載されているようにして、化学量論Mo12V3W1,2Cu2,4Oxの複合元素酸化物を製造した。
比較例と同じように操作した。しかし、粉砕したMo12V3W1,2Cu2,4Ox粉末(400g)に、Mo12V3W1,2Cu2,4Ox粉末の質量に対して、15質量%の微細MoO3(60g)を加えた(MoO3 Fa.H.C.Starckの("Molybdenum Trioxide I")、Mo含量=66.6質量%、OM=1m2/g、粒径分布は図2に相応する)。
シェル触媒を各々下記のようにして塩浴(硝酸カリウム53質量%、亜硝酸ナトリウム40質量%及び硝酸ナトリウム7質量%から成る混合物)で回りを洗うようにしたモデル触媒管中で試験した:モデル触媒管:V2A−鋼、壁厚2mm、内径26mm、外径4mmの中心にサーモウェル(サーモエレメントの収納用)、管長320cm。不活性環(SteatitC220、7×3×4mm)から成る長さ20cmの予備床の後に、流れ方向に先ず100cmには各シェル触媒70質量%及びSteatitC220から成る環形不活性担体(外径7mm、長さ3mm、内径4mm)30質量%から成る混合物を装入した。流れ方向に次の200cmには希釈した形で各シェル触媒を装入した。
Claims (5)
- 担体及び担体表面に塗布した触媒活性材料から成り、その際活性材料を結合剤により担体表面に接着させる、触媒の製造において、
活性材料が、
元素Mo及びVを含有する少なくとも1種の微細複合元素酸化物、及び
98質量%以上がMo及びOで構成されている物質のモリブデン酸化物である、少なくとも1種の微細物質S
から成る微細な混合物であり、
微細複合元素酸化物が、下記一般化学量論I
Mo12VaX1 bX2 cX3 dX4 eX5 fX6 gOn (I)
[式中、変数は下記のものを表す:
X1=W、Nb、Ta、Cr及び/又はCe、
X2=Cu、Ni、Co、Fe、Mn及び/又はZn、
X3=Sb及び/又はBi、
X4=1種以上のアルカリ金属(Li、Na、K、Rb、Cs)及び/又はH、
X5=1種以上のアルカリ土類金属(Mg、Ca、Sr、Ba)、
X6=Si、Al、Ti及び/又はZr、
a=1〜6、
b=0.2〜4、
c=0.5〜18、
d=0〜40、
e=0〜2、
f=0〜4、
g=0〜40、及び
n=一般化学量論I中の酸素と異なる元素の原子価及び頻度により決まる数]を満たし、
微細物質SがMoO3であり、
活性材料が、Mo及びVを含有する微細複合元素酸化物の全量に対し1質量%以上かつ30質量%以下の微細物質Sを含有し、かつ
微細な混合物が、微細複合元素酸化物を粉砕し、次いで粉砕した微細複合元素酸化物に微細物質Sを加えることによって製造されることを特徴とする、担体及び担体表面に塗布した触媒活性材料から成る触媒の製法。 - 微細物質Sの比表面積OMが0.1m2/g以上かつ5m2/g以下であることを特徴とする、請求項1に記載の方法。
- 微細物質Sの粒径d50が1μm以上かつ200μm以下であることを特徴とする、請求項1又は2に記載の方法。
- 活性材料を層厚100〜300μmで担体表面上に塗布することを特徴とする、請求項1から3までのいずれか1項に記載の方法。
- 結合剤が、水20〜90質量%及び有機化合物10〜80質量%から成る溶液であることを特徴とする、請求項1から4までのいずれか1項に記載の方法。
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RU2737698C1 (ru) * | 2020-05-14 | 2020-12-02 | Общество с ограниченной ответственностью "Экострим" | Применение агарозы в качестве загустителя водного раствора соединения платиноида при изготовлении катализатора, способ изготовления катализатора и водный раствор соединения платиноида для получения каталитического слоя на подложке при изготовлении катализатора |
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CN114289031B (zh) * | 2021-11-12 | 2023-11-07 | 中海油天津化工研究设计院有限公司 | 一种用于丙烯氧化制丙烯醛的环形涂层催化剂及其制备方法 |
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MY151135A (en) | 2014-04-30 |
JP2015166088A (ja) | 2015-09-24 |
US8318631B2 (en) | 2012-11-27 |
US20080214863A1 (en) | 2008-09-04 |
TWI460012B (zh) | 2014-11-11 |
ZA200906800B (en) | 2010-12-29 |
JP2010520042A (ja) | 2010-06-10 |
DE102007010422A1 (de) | 2008-09-04 |
RU2009136186A (ru) | 2011-04-10 |
CN102872856A (zh) | 2013-01-16 |
KR101463281B1 (ko) | 2014-11-18 |
RU2464085C2 (ru) | 2012-10-20 |
CN101622066A (zh) | 2010-01-06 |
EP2134465B1 (de) | 2018-06-13 |
WO2008104577A1 (de) | 2008-09-04 |
KR20090127310A (ko) | 2009-12-10 |
BRPI0807659A2 (pt) | 2014-06-10 |
EP2134465A1 (de) | 2009-12-23 |
TW200916188A (en) | 2009-04-16 |
CN101622066B (zh) | 2013-06-05 |
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