Liquid-Liquid Equilibrium of Aqueous Solutions in the Presence of Biological Buffer MOPS or MOPS Sodium Salt
碩士 === 國立臺灣科技大學 === 化學工程系 === 100 === Separation and extraction process are often applied in industries. Liquid-liquid equilibrium data are needed for rational design and optimal separation operation. The objective of this study is to determine liquid-liquid equilibrium (LLE) and solid-liquid-liquid...
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ndltd-TW-100NTUS53420132019-05-15T20:43:22Z http://ndltd.ncl.edu.tw/handle/9j8e8r Liquid-Liquid Equilibrium of Aqueous Solutions in the Presence of Biological Buffer MOPS or MOPS Sodium Salt 添加生物相容緩衝劑MOPS或MOPSNa之有機水溶液的液液平衡行為研究 Saidah Altway Saidah Altway 碩士 國立臺灣科技大學 化學工程系 100 Separation and extraction process are often applied in industries. Liquid-liquid equilibrium data are needed for rational design and optimal separation operation. The objective of this study is to determine liquid-liquid equilibrium (LLE) and solid-liquid-liquid equilibrium (SLLE) data for ternary systems of acetonitrile, acetone, 1-propanol, 2-propanol, tert-butanol, 1,3-dioxolane, 1,4-dioxane, or tetrahydrofuran + water + MOPS (3-(N-morpholino)propane sulfonic acid) or MOPS sodium salt (3-(N-morpholino)propanesulfonic acid sodium salt) as biological buffer at 298.2 K under atmospheric pressure. Buffer precipitation method (buffering-out) may be used to recover organic solvents from their aqueous solutions. Two liquid phases were formed after adding a certain amount of MOPS or MOPS sodium salt in the aqueous solutions. The solubility of MOPS is higher than that of MOPS sodium salt in the aqueous solutions. However, MOPS sodium salt may be more useful for industries than MOPS, since with the lower amount of solid (buffer) added into the solutions MOPS sodium salt can give higher content of organic solvent in organic-rich phase at SLLE condition. The effective excluded volume (EEV) values of buffers were obtained from the LLE phase boundary data and tie-line data. The reliability of the experimental tie-line data was satisfactorily ascertained by the Othmer-Tobias correlation. The experimental LLE tie-line data were also accurately correlated with the NRTL model. Professor Ming-Jer Lee 李明哲 2012 學位論文 ; thesis 148 en_US |
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碩士 === 國立臺灣科技大學 === 化學工程系 === 100 === Separation and extraction process are often applied in industries. Liquid-liquid equilibrium data are needed for rational design and optimal separation operation. The objective of this study is to determine liquid-liquid equilibrium (LLE) and solid-liquid-liquid equilibrium (SLLE) data for ternary systems of acetonitrile, acetone, 1-propanol, 2-propanol, tert-butanol, 1,3-dioxolane, 1,4-dioxane, or tetrahydrofuran + water + MOPS (3-(N-morpholino)propane sulfonic acid) or MOPS sodium salt (3-(N-morpholino)propanesulfonic acid sodium salt) as biological buffer at 298.2 K under atmospheric pressure. Buffer precipitation method (buffering-out) may be used to recover organic solvents from their aqueous solutions. Two liquid phases were formed after adding a certain amount of MOPS or MOPS sodium salt in the aqueous solutions. The solubility of MOPS is higher than that of MOPS sodium salt in the aqueous solutions. However, MOPS sodium salt may be more useful for industries than MOPS, since with the lower amount of solid (buffer) added into the solutions MOPS sodium salt can give higher content of organic solvent in organic-rich phase at SLLE condition. The effective excluded volume (EEV) values of buffers were obtained from the LLE phase boundary data and tie-line data. The reliability of the experimental tie-line data was satisfactorily ascertained by the Othmer-Tobias correlation. The experimental LLE tie-line data were also accurately correlated with the NRTL model.
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Professor Ming-Jer Lee |
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Professor Ming-Jer Lee Saidah Altway Saidah Altway |
author |
Saidah Altway Saidah Altway |
spellingShingle |
Saidah Altway Saidah Altway Liquid-Liquid Equilibrium of Aqueous Solutions in the Presence of Biological Buffer MOPS or MOPS Sodium Salt |
author_sort |
Saidah Altway |
title |
Liquid-Liquid Equilibrium of Aqueous Solutions in the Presence of Biological Buffer MOPS or MOPS Sodium Salt |
title_short |
Liquid-Liquid Equilibrium of Aqueous Solutions in the Presence of Biological Buffer MOPS or MOPS Sodium Salt |
title_full |
Liquid-Liquid Equilibrium of Aqueous Solutions in the Presence of Biological Buffer MOPS or MOPS Sodium Salt |
title_fullStr |
Liquid-Liquid Equilibrium of Aqueous Solutions in the Presence of Biological Buffer MOPS or MOPS Sodium Salt |
title_full_unstemmed |
Liquid-Liquid Equilibrium of Aqueous Solutions in the Presence of Biological Buffer MOPS or MOPS Sodium Salt |
title_sort |
liquid-liquid equilibrium of aqueous solutions in the presence of biological buffer mops or mops sodium salt |
publishDate |
2012 |
url |
http://ndltd.ncl.edu.tw/handle/9j8e8r |
work_keys_str_mv |
AT saidahaltway liquidliquidequilibriumofaqueoussolutionsinthepresenceofbiologicalbuffermopsormopssodiumsalt AT saidahaltway liquidliquidequilibriumofaqueoussolutionsinthepresenceofbiologicalbuffermopsormopssodiumsalt AT saidahaltway tiānjiāshēngwùxiāngrónghuǎnchōngjìmopshuòmopsnazhīyǒujīshuǐróngyèdeyèyèpínghéngxíngwèiyánjiū AT saidahaltway tiānjiāshēngwùxiāngrónghuǎnchōngjìmopshuòmopsnazhīyǒujīshuǐróngyèdeyèyèpínghéngxíngwèiyánjiū |
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