Acidic Cesium Salts of Keggin-type Heteropolytungstic Acids as Insoluble Solid Acid Catalysts for Estenfication and Hydrolysis Reactions

Chemistry Letters ◽

10.1246/cl.1993.825 ◽

1993 ◽

Vol 22 (5) ◽

pp. 825-828 ◽

Author(s):

Yusuke Izumi ◽

Michiyoshi Ono ◽

Mayumi Ogawa ◽

Kazuo Urabe

Keyword(s):

Solid Acid Catalysts ◽

Acid Catalysts ◽

Keggin Type ◽

Cesium Salts ◽

Hydrolysis Reactions

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Molecular design of solid acid catalysts. Isomerization of n-butane catalyzed by acidic cesium salts of 12-tungstophosphoric acid combined with platinum1Catalysis by Heteropoly Compounds, part 29. Part 28: K.Y. Lee, S. Oishi, H. Igarashi and M. Misono, Catal. Today, in press. Communication presented at the First Francqui Colloquium, Brussels, 19–20 February 1996.1

Journal of Molecular Catalysis A Chemical ◽

10.1016/s1381-1169(96)00350-0 ◽

1997 ◽

Vol 115 (3) ◽

pp. 449-455 ◽

Author(s):

Kyutae Na ◽

Takeshi Iizaki ◽

Toshio Okuhara ◽

Makoto Misono

Keyword(s):

Molecular Design ◽

Tungstophosphoric Acid ◽

Solid Acid Catalysts ◽

Acid Catalysts ◽

Heteropoly Compounds ◽

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ChemInform Abstract: Acidic Alkali Metal Salts and Ammonium Salts of Keggin-Type Heteropoly Acids as Efficient Solid Acid Catalysts for Liquid-Phase Friedel- Crafts Reactions.

10.1002/chin.199319060 ◽

2010 ◽

Vol 24 (19) ◽

pp. no-no

Author(s):

Y. IZUMI ◽

M. OGAWA ◽

W. NOHARA ◽

K. URABE

Keyword(s):

Liquid Phase ◽

Alkali Metal ◽

Ammonium Salts ◽

Metal Salts ◽

Solid Acid Catalysts ◽

Heteropoly Acids ◽

Acid Catalysts ◽

Alkali Metal Salts ◽

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Cationic ring-opening polymerization of tetrahydrofuran with Keggin-type heteropolycompounds as solid acid catalysts

Chinese Journal of Polymer Science ◽

10.1007/s10118-010-9007-z ◽

2010 ◽

Vol 28 (3) ◽

pp. 305-310 ◽

Author(s):

Ahmed Aouissi ◽

Salim Salem Al-Deyab ◽

Hassan Al-Shehri

Keyword(s):

Ring Opening ◽

Ring Opening Polymerization ◽

Solid Acid Catalysts ◽

Acid Catalysts ◽

Keggin Type ◽

Cationic Ring Opening Polymerization

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Honeycomb-structured solid acid catalysts fabricated via the swelling-induced self-assembly of acidic poly(ionic liquid)s for highly efficient hydrolysis reactions

Chinese Journal of Catalysis ◽

10.1016/s1872-2067(20)63658-0 ◽

2021 ◽

Vol 42 (2) ◽

pp. 297-309

Author(s):

Bihua Chen ◽

Tong Ding ◽

Xi Deng ◽

Xin Wang ◽

Dawei Zhang ◽

...

Keyword(s):

Ionic Liquid ◽

Self Assembly ◽

Solid Acid Catalysts ◽

Acid Catalysts ◽

Highly Efficient ◽

Poly Ionic Liquid ◽

Hydrolysis Reactions

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Alkali metal salts and ammonium salts of Keggin-type heteropolyacids as solid acid catalysts for liquid-phase Friedel-Crafts reactions

Applied Catalysis A General ◽

10.1016/0926-860x(95)00167-0 ◽

1995 ◽

Vol 132 (1) ◽

pp. 127-140 ◽

Author(s):

Y IZUMI ◽

M OGAWA ◽

K URABE

Keyword(s):

Liquid Phase ◽

Alkali Metal ◽

Ammonium Salts ◽

Metal Salts ◽

Solid Acid Catalysts ◽

Acid Catalysts ◽

Alkali Metal Salts ◽

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Water-Tolerant, Highly Active Solid Acid Catalysts Composed of the Keggin-Type Polyoxometalate H3PW12O40 Immobilized in Hydrophobic Nanospaces of Organomodified Mesoporous Silica

Angewandte Chemie International Edition ◽

10.1002/anie.200702478 ◽

2007 ◽

Vol 46 (40) ◽

pp. 7625-7628 ◽

Author(s):

Kei Inumaru ◽

Toru Ishihara ◽

Yuichi Kamiya ◽

Toshio Okuhara ◽

Shoji Yamanaka

Keyword(s):

Mesoporous Silica ◽

Solid Acid Catalysts ◽

Acid Catalysts ◽

Keggin Type ◽

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Water-Tolerant, Highly Active Solid Acid Catalysts Composed of the Keggin-Type Polyoxometalate H3PW12O40 Immobilized in Hydrophobic Nanospaces of Organomodified Mesoporous Silica

Angewandte Chemie ◽

10.1002/ange.200702478 ◽

2007 ◽

Vol 119 (40) ◽

pp. 7769-7772 ◽

Author(s):

Kei Inumaru ◽

Toru Ishihara ◽

Yuichi Kamiya ◽

Toshio Okuhara ◽

Shoji Yamanaka

Keyword(s):

Mesoporous Silica ◽

Solid Acid Catalysts ◽

Acid Catalysts ◽

Keggin Type ◽

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ChemInform Abstract: Alkali Metal Salts and Ammonium Salts of Keggin-Type Heteropolyacids as Solid Acid Catalysts for Liquid-Phase Friedel-Crafts Reactions.

10.1002/chin.199609025 ◽

2010 ◽

Vol 27 (9) ◽

pp. no-no

Author(s):

Y. IZUMI ◽

M. OGAWA ◽

K. URABE

Keyword(s):

Liquid Phase ◽

Alkali Metal ◽

Ammonium Salts ◽

Metal Salts ◽

Solid Acid Catalysts ◽

Acid Catalysts ◽

Alkali Metal Salts ◽

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Acidic Alkali Metal Salts and Ammonium Salts of Keggin-type Heteropolyacids as Efficient Solid Acid Catalysts for Liquid-phase Friedel-Crafts Reactions

Chemistry Letters ◽

10.1246/cl.1992.1987 ◽

1992 ◽

Vol 21 (10) ◽

pp. 1987-1990 ◽

Author(s):

Yusuke Izumi ◽

Mayumi Ogawa ◽

Wataru Nohara ◽

Kazuo Urabe

Keyword(s):

Liquid Phase ◽

Alkali Metal ◽

Ammonium Salts ◽

Metal Salts ◽

Solid Acid Catalysts ◽

Acid Catalysts ◽

Alkali Metal Salts ◽

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Preparation of Strong Acid Catalysts by Sulfate Treatment of Calcined Boehmite

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19922241 ◽

1992 ◽

Vol 57 (11) ◽

pp. 2241-2247 ◽

Author(s):

Tomáš Hochmann ◽

Karel Setínek

Keyword(s):

Catalytic Activity ◽

Surface Area ◽

Aluminum Sulfate ◽

Strong Acid ◽

Acid Strength ◽

Solid Acid Catalysts ◽

Acid Catalysts ◽

Preparation Methods ◽

Indicator Method

Solid acid catalysts with acid strength of -14.52 < H0 < -8.2 were prepared by sulfate treatment of the samples of boehmite calcined at 105-800 °C. Two preparation methods were used: impregnation of the calcined boehmite with 3.5 M H2SO4 or mixing of the boehmite samples with anhydrous aluminum sulfate, in both cases followed by calcination in nitrogen at 650 °C. The catalysts were characterized by measurements of surface area, adsorption of pyridine and benzene, acid strength measurements by the indicator method and by catalytic activity tests in the isomerization of cyclohexene, p-xylene and n-hexane. Properties of the catalysts prepared by both methods were comparable.

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