DYNAMICS OF THE REACTION OF 2,4,6-TRIBROMOPHENOL AND BENZYL BROMIDE BY PHASE TRANSFER CATALYSIS
スポンサーリンク
概要
- 論文の詳細を見る
The dynamics of the alkylation of 2,4,6-tribromophenol in an alkaline solution of KOH/chlorobenzene solvent by phase transfer catalysis was simulated using the two-film theory, taking account of mass transfer and distribution of catalysts between the two phases as well as the intrinsic reaction kinetics in both the organic and aqueous phases. Independent experiments were designed to obtain the distribution coefficients and the overall mass transfer coefficients of the catalysts between the two phases. The organic-phase intrinsic reaction-rate constant was obtained by carrying out the half-organic phase reaction. Without adding benzyl bromide, a reaction was also conducted to obtain the aqueous-phase intrinsic reaction-rate constant. Comparing the results obtained from experiments, the aqueous-phase reaction rate is essentially instantaneous relative to the organic-phase reaction rate. The resistance of mass transfer of catalyst between two phases is negligible. The reaction rate in the organic phase is a rate-determining step for the two-phase reaction. The results obtained from the model’s prediction are closely consistent with the experimental data obtained from the phase-transfer catalytic reactions.
- 社団法人 化学工学会の論文
- 1993-08-20
著者
-
Wang Maw-ling
Department Of Environmental Engineering Hungkuang University
-
Wang M‐l
Hung‐kuang Univ. Taichung County Twn
-
Hsieh Y‐m
Chin Min Inst. Technol. Miaoli Twn
-
Hsieh Yu-ming
Department Of Electronic Materials Chin Min Institute Of Technology
-
Wang Maw-ling
Department Of Chemical Engineering National Tsing Hua University
関連論文
- Two-Phase Catalyzed S-Substitution of 2-Mercaptobenzimidazole by Tributylamine in the Presence of Potassium Hydroxide
- Semi-Continuous Gas-Liquid Phase-Transfer Catalyzed Reaction of o-Phenylene Diamine and Carbon Disulfide by Tertiary Amines and in the Presence of Potassium Hydroxide
- Kinetic Study of the Reaction of α-Bromoxylene and 2, 4, 6-Tribromophenol via Phase Transfer Catalysis at Low Alkalinity
- DYNAMICS OF THE REACTION OF 2,4,6-TRIBROMOPHENOL AND BENZYL BROMIDE BY PHASE TRANSFER CATALYSIS
- Study of the Reaction of Benzoyl Chloride and Sodium Decarboxylate under Inverse Phase Transfer Catalysis
- Epoxidation of Dicyclopentadiene under Phase Transfer Catalysis Conditions : Pseudo Steady State Hypothesis Approach
- Kinetic Study of Synthesizing Bisphenol A Diallyl Ether in a Phase-Transfer Catalytic Reaction
- Phase-Transfer-Catalyzed Synthesis of Butyl 4-Methoxyphenylacetate and Its Simultaneous Hydrolysis by Potassium Hydroxide in Oil-Water Biphasic System
- Kinetic study of the reaction of benzyl chloride with triphenylphosphine to synthesize benzyl-triphenylphosphonium chloride under water extraction.
- Geometric stability of a cylindrical nucleus growing in a supersaturated solution.