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- Title
Highly efficient two-stage ring-opening of epichlorohydrin with carboxylic acid in a microreaction system.
- Authors
Zifei Yan; Yubin Wang; Chencan Du; Jian Deng; Guangsheng Luo
- Abstract
Ring-opening of epoxides with carboxylic acids has been widely used to prepare many high value intermediates in the polymer and pharmaceutical industries. Most of conventional processes proceeded in batch stirred reactors. As such they always suffer from low productivity and selectivity. Here we developed an advanced technology to perform the ring-opening reaction of epichlorohydrin with neodecanoic acid (NDA) for continuous production of 3-chloro-2-hydroxypropyl neodecanoate in a more efficient and safer way. A microreaction system where a microreactor connected to a stirred reactor was established. When the conversion of NDA rapidly reaching around 90% in a microreactor at 110°C, the reaction solution was transferred to a stirred reactor at 90°C. This two-stage operating mode can reduce the reaction time and improve the selectivity through free switching of temperature in the consecutive two reactors, thus substantially reducing the consumption of energy and materials.
- Subjects
EPICHLOROHYDRIN; RING-opening reactions; ENERGY consumption; BATCH reactors; POLYMERS industry; CARBOXYLIC acids
- Publication
AIChE Journal, 2022, Vol 68, Issue 11, p1
- ISSN
0001-1541
- Publication type
Article
- DOI
10.1002/aic.17791