Preparation and Extraction Properties of Microcapsules Containing Tri-n-Octyl Amine as Core Material

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Yasuo Hatate²  Yoshimitsu Uemura²  Yoshinobu Kawano¹  Hidekazu Yoshizawa² 

[1] Department of Materials Science, Miyazaki University;Department of Applied Chemistry and Chemical Engineering, Kagoshima University

关键词: Extraction;    Microcapsule;    Propionic Acid;    Tri-n-Octyl Amine;    in situ Polymerization;    Kinetics;    Styrene;    Divinylbenzene;   

DOI  :  10.1252/jcej.26.198

来源: Maruzen Company Ltd

【 摘 要 】

References(14)Cited-By(21)Microcapsules containing tri-n-octyl amine as core material were prepared by in situ polymerization of styrene and divinylbenzene over a wide range of relevant preparation conditions. The extraction equilibrium and extraction rate of propionic acid in aqueous phase were investigated by using the microcapsules. The extraction equilibrium of propionic acid/tri-n-octyl amine in a suspended microcapsules system was well consistent with that in a liquid-liquid system. From the experimental results, the rate-determining step was concluded to be the pore diffusion of propionic acid through the porous film of microcapsules. The activation energy was found to be 34.6 kJ/mol. The extraction rate decreased with increase in monomer concentration, divinylbenzene/styrene weight ratio and average diameter of microcapsules.

【 授权许可】

Unknown