Phase and Chemical Equilibria of Biphasic Protic Ionic Liquid: Triethylamine–Acetic Acid

7-methyl-1,5,7-triazabicyclo[4.4.0]dec-5-enium acetate (mTBD acetate) is a protic ionic liquid that is being investigated for use in industrial processes, such as for producing textiles from cellulose. To aid in designing such processes, we have measured the densities, viscosities, and thermal conductivities of mTBD acetate and aqueous mixtures containing mTBD acetate. We also investigated how excess amounts of mTBD or acetic acid affect the density, and found that in general an excess of either component decreases the density. However, when no water is present, the sample with excess acetic acid actually has a slightly higher density than when there is an equimolar amount of acid and base. The maximum density occurs when some water is present (around 30-40 mol%). We also modeled the density data using the ePC-SAFT equation of state and provide simple correlations for calculating the viscosity and thermal conductivity of these mixtures.

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Integration of acetic acid catalysis with one-pot protic ionic liquid configuration to achieve high-efficient biorefinery of poplar biomass

Green Chemistry ◽

10.1039/d1gc01727f ◽

2021 ◽

Author(s):

Kaixuan Huang ◽

Mood Mohan ◽

Anthe George ◽

Blake A. Simmons ◽

Yong Xu ◽

...

Keyword(s):

Ionic Liquid ◽

Acetic Acid ◽

Acid Catalysis ◽

Protic Ionic Liquid ◽

One Pot ◽

Ionic Liquid Pretreatment ◽

High Efficient ◽

Full Conversion

An integrated acetic acid based one-pot protic ionic liquid pretreatment and saccharification enables the near full conversion of poplar polysaccharides.

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Densities, Viscosities, and Thermal Conductivities of the Ionic Liquid 7-Methyl-1,5,7-triazabicyclo[4.4.0]dec-5-enium Acetate and Its Mixtures with Water

International Journal of Thermophysics ◽

10.1007/s10765-020-02742-4 ◽

2020 ◽

Vol 41 (12) ◽

Cited By ~ 1

Author(s):

Zachariah Steven Baird ◽

Petri Uusi-Kyyny ◽

Artur Dahlberg ◽

Daniel Cederkrantz ◽

Ville Alopaeus

Keyword(s):

Ionic Liquid ◽

Acetic Acid ◽

Maximum Density ◽

Equimolar Amount ◽

Industrial Processes ◽

Aqueous Mixtures ◽

Protic Ionic Liquid ◽

Density Data ◽

Acid And Base ◽

Thermal Conductivities

Abstract 7-Methyl-1,5,7-triazabicyclo[4.4.0]dec-5-enium acetate (mTBD acetate) is a protic ionic liquid that is being investigated for use in industrial processes, such as for producing textiles from cellulose. To aid in designing such processes, we have measured the densities, viscosities, and thermal conductivities of mTBD acetate and aqueous mixtures containing mTBD acetate. We also investigated how excess amounts of mTBD or acetic acid affect the density, and found that in general an excess of either component decreases the density. However, when no water is present, the sample with excess acetic acid actually has a slightly higher density than when there is an equimolar amount of acid and base. The maximum density occurs when some water is present (around 30–40 mol%). We also modeled the density data using the ePC-SAFT equation of state and provide simple correlations for calculating the viscosity and thermal conductivity of these mixtures.

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