Development of supercritical fluid extraction and rectification processes

Yoshiaki Hashimoto; Masaki Ota; Yoshiyuki Sato; Yasushi Ohizumi; Hiroshi Inomata

doi:10.1252/kakoronbunshu.40.481

Development of supercritical fluid extraction and rectification processes

Yoshiaki Hashimoto, Masaki Ota, Yoshiyuki Sato, Yasushi Ohizumi, Hiroshi Inomata

ENG - Research Center of Supercritical Fluid Terchnolody

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

Supercritical fluid extraction with a rectification process was developed with a view to separation of trace components from natural materials. Fundamental experiments for separation of 7-hydroxyflavone from anthracene were carried out in a newly developed apparatus at a pressure of 12 MPa. When the respective temperatures of supercritical CO₂+ethanol extraction and rectification were controlled at 333 K and 353 K, and with a feed ethanol concentration of 12 mol% and a CO₂ flow rate of 1.4 L/min, only anthracene was recovered from the top of the rectifier. Rectification conditions were optimized by selecting a low feed ethanol concentration and by taking into consideration the phase separation of CO₂-ethanol systems.

Original language	English
Pages (from-to)	481-485
Number of pages	5
Journal	kagaku kogaku ronbunshu
Volume	40
Issue number	6
DOIs	https://doi.org/10.1252/kakoronbunshu.40.481
Publication status	Published - 2014 Jan 1

Keywords

Flavonoids
Rectification
Supercritical Fluid Extraction

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)

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AU - Hashimoto, Yoshiaki

AU - Ota, Masaki

AU - Sato, Yoshiyuki

AU - Ohizumi, Yasushi

AU - Inomata, Hiroshi

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AB - Supercritical fluid extraction with a rectification process was developed with a view to separation of trace components from natural materials. Fundamental experiments for separation of 7-hydroxyflavone from anthracene were carried out in a newly developed apparatus at a pressure of 12 MPa. When the respective temperatures of supercritical CO2+ethanol extraction and rectification were controlled at 333 K and 353 K, and with a feed ethanol concentration of 12 mol% and a CO2 flow rate of 1.4 L/min, only anthracene was recovered from the top of the rectifier. Rectification conditions were optimized by selecting a low feed ethanol concentration and by taking into consideration the phase separation of CO2-ethanol systems.

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