کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4764241 | 1423381 | 2016 | 23 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Adsorption equilibrium for Z-ligustilide on C18-bonded silica from supercritical carbon dioxide
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In the adsorption process of Z-ligustilide from supercritical carbon dioxide on C18-bonded silica, the density of mobile phase and the temperature are two important factors that influence the adsorption capacity. The adsorption capacity of Z-ligustilide decreased with the increasing density of the SC-CO2 mobile phase as well as the increasing temperature, which is conformed to the basic principle of thermodynamics. The adsorption equilibrium data were fitted by Langmuir and Freundlich isotherm models, and the Langmuir isotherm model performed better for describing the whole adsorption process on the column. The obtained model can be applied for the engineering design and the optimization of separation of Z-ligustilide with pre-SFC.185
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chinese Journal of Chemical Engineering - Volume 24, Issue 12, December 2016, Pages 1680-1686
Journal: Chinese Journal of Chemical Engineering - Volume 24, Issue 12, December 2016, Pages 1680-1686
نویسندگان
Huisheng Lü, Shuangyan Liu, Yonghui Li, Fanmei Meng, Dawei Yao, Xufei Mo,