Catalysis by Heteropoly Compounds. XVIII. Oxidation of Methacrylaldehyde over 12-Molybdophosphoric Acid and Its Alkali Salts

Noritaka Mizuno; Tetsuji Watanabe; Makoto Misono

doi:10.1246/bcsj.64.243

Catalysis by Heteropoly Compounds. XVIII. Oxidation of Methacrylaldehyde over 12-Molybdophosphoric Acid and Its Alkali Salts

Bulletin of the Chemical Society of Japan ◽

10.1246/bcsj.64.243 ◽

1991 ◽

Vol 64 (1) ◽

pp. 243-247 ◽

Cited By ~ 29

Author(s):

Noritaka Mizuno ◽

Tetsuji Watanabe ◽

Makoto Misono

Keyword(s):

Heteropoly Compounds ◽

Molybdophosphoric Acid ◽

Alkali Salts

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Catalysis by heteropoly compounds. VIII. Reduction-oxidation and catalytic properties of 12-molybdophosphoric acid and its alkali salts. The role of redox carriers in the bulk

The Journal of Physical Chemistry ◽

10.1021/j100247a021 ◽

1985 ◽

Vol 89 (1) ◽

pp. 80-85 ◽

Cited By ~ 60

Author(s):

Noritaka Mizuno ◽

Tetsuji Watanabe ◽

Makoto Misono

Keyword(s):

Catalytic Properties ◽

Heteropoly Compounds ◽

Molybdophosphoric Acid ◽

Alkali Salts

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ChemInform Abstract: CATALYSIS BY HETEROPOLY COMPOUNDS. VIII. REDUCTION-OXIDATION AND CATALYTIC PROPERTIES OF 12-MOLYBDOPHOSPHORIC ACID AND ITS ALKALI SALTS. THE ROLE OF REDOX CARRIERS IN THE BULK

Chemischer Informationsdienst ◽

10.1002/chin.198516033 ◽

1985 ◽

Vol 16 (16) ◽

Author(s):

N. MIZUNO ◽

T. WATANABE ◽

M. MISONO

Keyword(s):

Catalytic Properties ◽

Heteropoly Compounds ◽

Molybdophosphoric Acid ◽

Alkali Salts

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Catalysis by heteropoly compounds IV. Oxidation of methacrolein to methacrylic acid over 12-molybdophosphoric acid

Journal of Catalysis ◽

10.1016/0021-9517(82)90157-9 ◽

1982 ◽

Vol 77 (1) ◽

pp. 169-179 ◽

Cited By ~ 74

Author(s):

Y KONISHI

Keyword(s):

Methacrylic Acid ◽

Heteropoly Compounds ◽

Molybdophosphoric Acid

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Surface-type and bulk-type (II) catalysis in catalytic oxidations over 12-molybdophosphoric acid and its alkali salts*1

Journal of Catalysis ◽

10.1016/0021-9517(90)90164-f ◽

1990 ◽

Vol 123 (1) ◽

pp. 157-163 ◽

Cited By ~ 27

Author(s):

N MIZUNO

Keyword(s):

Type Ii ◽

Molybdophosphoric Acid ◽

Surface Type ◽

Catalytic Oxidations ◽

Alkali Salts

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Pore structures of the monovalent salts of the heteropoly compounds, 12-tungstophosphoric and 12-molybdophosphoric acid

Journal of Colloid and Interface Science ◽

10.1016/0021-9797(84)90060-2 ◽

1984 ◽

Vol 101 (2) ◽

pp. 479-488 ◽

Cited By ~ 101

Author(s):

J.B McMonagle ◽

J.B Moffat

Keyword(s):

Heteropoly Compounds ◽

Molybdophosphoric Acid ◽

Pore Structures

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Studies of the Acidity and Ionic Conductivity of Silica-Supported Heteropoly Compounds. III. Paramagnetic Species Involved in the Dehydration Reaction on Supported 12-Molybdophosphoric Acid and Its Salts

Bulletin of the Chemical Society of Japan ◽

10.1246/bcsj.63.2076 ◽

1990 ◽

Vol 63 (7) ◽

pp. 2076-2082 ◽

Cited By ~ 5

Author(s):

Reiji Ohtsuka ◽

Jun-ichi Kobayashi

Keyword(s):

Ionic Conductivity ◽

Paramagnetic Species ◽

Heteropoly Compounds ◽

Molybdophosphoric Acid ◽

Dehydration Reaction

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ChemInform Abstract: ACTIVITY PATTERNS OF MOLYBDOPHOSPHORIC ACID (H3PMO12O40) AND ITS ALKALI SALTS FOR OXIDATION REACTIONS

Chemischer Informationsdienst ◽

10.1002/chin.198409176 ◽

1984 ◽

Vol 15 (9) ◽

Cited By ~ 1

Author(s):

T. KOMAYA ◽

M. MISONO

Keyword(s):

Activity Patterns ◽

Molybdophosphoric Acid ◽

Oxidation Reactions ◽

Alkali Salts

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Dehydrogenation, Deamination and Disproportionation of Diethylamine over Heteropoly Compounds

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19952047 ◽

1995 ◽

Vol 60 (12) ◽

pp. 2047-2056 ◽

Cited By ~ 2

Author(s):

Abdel-Ghaffar A. Ali ◽

Laila I. Ali

Keyword(s):

Reaction Mechanism ◽

Continuous Flow ◽

Flow System ◽

Tungstophosphoric Acid ◽

Lewis Acidity ◽

Heteropoly Compounds ◽

Molybdophosphoric Acid ◽

System Transformation ◽

Continuous Flow System

In a continuous flow system, transformation of diethylamine over heteropoly compounds was studied at 250 to 350 °C. It was found that ammonium molybdophosphate and tungstophosphate are the most active catalysts while copper molybdophosphate is the most stable one. 12-Molybdophosphoric acid and its salts were highly selective catalysts for dehydrogenation of diethylamine to ethyliden- ethylamine whereas 12-tungstophosphoric acid and its salts directed the reaction selectively to deamination. The role of Lewis acidity of metal cations, Bronsted acidity and basic sites in the reaction mechanism is discussed.

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