Measurement and Correlation of the Solubility of Ligusticum Chuanxiong oil in Supercritical CO2

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Measurement and Correlation of the Solubility of Ligusticum Chuanxiong oil in Supercritical CO2

SUN Yongyue^a,b; LI Shufen^a

^a Key Laboratory for Green Chemical Technology of State Education Ministry, School of Chemical Engineering ＆ Technology, Tianjin University, Tianjin 300072, China
^b Tianjin Municipal Institute for Drug Control, Tianjin 300070, China

Received:1900-01-01 Revised:1900-01-01 Online:2005-12-28 Published:2005-12-28
Contact: SUN Yongyue

川芎油在超临界二氧化碳中溶解度的测定与关联

孙永跃^a,b; 李淑芬^a

^a Key Laboratory for Green Chemical Technology of State Education Ministry, School of Chemical Engineering ＆ Technology, Tianjin University, Tianjin 300072, China
^b Tianjin Municipal Institute for Drug Control, Tianjin 300070, China

通讯作者: 孙永跃

Abstract

Abstract: Extraction of the Ligusticum Chuanxiong oil with supercritical CO2 （SC-CO2） was investigated at the temperatures ranging from 55℃ to 70℃ and pressure from 25 MPa to 35 MPa. The mass of Ligusticum Chuanxiong oil extracted increased with pressure at constant temperature. The initial slope of the extraction was considered as the solubility of oil in SC-CO2. Chrastil equation was used to correlate the solubility data of Ligusticum Chuanxiong oil. An improved Chrastil equation was also presented and was employed to correlate the solubility data, The correlation results show that the values of the average absolute relative deviation are 5.94% and 3.33% respectively, indicating the improved version has better correlation accuracy than that of Chrastil equation.

Key words: supercritical CO2 extraction, solubility, Ligusticum Chuanxiong oil, correlation

摘要： Extraction of the Ligusticum Chuanxiong oil with supercritical CO2 （SC-CO2） was investigated at the temperatures ranging from 55℃ to 70℃ and pressure from 25 MPa to 35 MPa. The mass of Ligusticum Chuanxiong oil extracted increased with pressure at constant temperature. The initial slope of the extraction was considered as the solubility of oil in SC-CO2. Chrastil equation was used to correlate the solubility data of Ligusticum Chuanxiong oil. An improved Chrastil equation was also presented and was employed to correlate the solubility data, The correlation results show that the values of the average absolute relative deviation are 5.94% and 3.33% respectively, indicating the improved version has better correlation accuracy than that of Chrastil equation.

关键词: 超临界二氧化碳;萃取;川芎油;溶解度;测定方法;关联性

SUN Yongyue, LI Shufen. Measurement and Correlation of the Solubility of Ligusticum Chuanxiong oil in Supercritical CO2[J]. .

孙永跃,李淑芬. 川芎油在超临界二氧化碳中溶解度的测定与关联[J]. CIESC Journal.

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