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Featured researches published by Toshiro Takahashi.


Bulletin of The Japan Petroleum Institute | 1965

Condensation of Acetaldehyde with Aromatic Hydrocarbons

Yukimasa Fukui; Hideo Takaoka; Jukichi Ishii; Kenji Hirai; Toshiro Takahashi

A kinetic study on the condensation reaction of acetaldehyde with aromatic hydrocarbons was carried out with conc. sulfuric acid catalyst. This is a homogeneous reaction between acetaldehyde and aromatic hydrocarbons dissolved in the acid phase. When using excess aromatic hydrocarbons with acetaldehyde and under vigorous agitation, the reaction was first order with respect to the concentration of acetaldehyde, and the apparent activation energy was about 10kcal/mole.The results of the various aromatic hydrocarbons with acetaldehyde showed that the order of the relative reactivities was in good conformity with the basicity of the aromatic hydrocarbons.


Bulletin of the Chemical Society of Japan | 1967

Alkylation of Benzene with Ethylene by the Metal Sulfate Supported on the Silica-Alumina Catalyst

Yukimasa Fukui; Hideo Takaoka; Jukichi Ishii; Kenji Hirai; Toshiro Takahashi


Bulletin of The Japan Petroleum Institute | 1967

Ethylation of Benzene over Silica-Alumina Catalyst using Organic Halogen Compounds as Accelerator

Yukimasa Fukui; Hideo Takaoka; Jukichi Ishii; Kenji Hirai; Toshiro Takahashi


Journal of The Japan Petroleum Institute | 1967

Kinetics of Ethylation of Benzene over Silica-Alumina Using Carbon Tetrachloride as Accelerator

Yukimasa Fukui; Jukichi Ishii; Kenji Hirai; Toshiro Takahashi


Bulletin of the Chemical Society of Japan | 1967

Effect of Water on Ethylation of Benzene Catalyzed by Silica-Alumina

Toshiro Takahashi; Jukichi Ishii; Kenji Hirai


Nippon Kagaku Kaishi | 1964

Kinetics of the Condensation Reaction of Acetaldehyde and Aromatic Hydrocarbons Catalysed by Sulfuric Acid

Yukimasa Fukui; Hideo Takaoka; Jukichi Ishii; Toshiro Takahashi


Nippon Kagaku Kaishi | 1956

High Boiling Point Hydrocarbons with which Aqueous Solution of Phenol is used for Extraction of Benzene.

Toshiro Takahashi; Tamechika Yamamoto


Nippon Kagaku Kaishi | 1956

Extraction of Aromatichydrocarbons by Phenol and Liquid Paraffin.

Toshiro Takahashi; Tamechika Yamamoto


Nippon Kagaku Kaishi | 1956

Extraction of Aromatic Hydrocarbons by Aqueous Solution of Dimethylformamide.

Toshiro Takahashi; Tamechika Yamamoto


Nippon Kagaku Kaishi | 1956

Extraction of Benzene by the Use of Several Solvents with Liquid Paraffin.

Toshiro Takahashi; Tamechika Yamamoto

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