Recovery and conversion of acetic acid from a phosphonium phosphinate ionic liquid to enable valorization of fermented wastewater

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ELECTRONIC SUPPLEMENTARY INFORMATION

CARBOXYLIC ACID RECOVERY FROM

PHOSPHONIUM PHOSPHINATE IONIC LIQUID

AND DOWNSTREAM CONVERSION ENABLE

VALORIZATION OF FERMENTED WASTEWATER

Ehsan Reyhanitash

*

_{, Egor Fufachev}

**

_{, Kaspar D. van Munster}

*

_,

Michael B.M. van Beek

*

_{, Lisette M.J. Sprakel}

*

_{, Carmen N. Edelijn}

*

_,

Bert M. Weckhuysen

**

_{, Sascha R.A. Kersten}

*

_{, Pieter C.A.}

Bruijnincx

**,***

_{, Boelo Schuur}

*†

*_{University of Twente, Sustainable Process Technology Group, Faculty of}

Science and Technology

**_{Utrecht University, Inorganic Chemistry and Catalysis, Debye Institute for}

Nanomaterials Science, Utrecht University

***_{Utrecht University, Organic Chemistry and Catalysis, Debye Institute for}

Nanomaterials Science, Utrecht University

Electronic Supplementary Material (ESI) for Green Chemistry. This journal is © The Royal Society of Chemistry 2019

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This document contains schematic drawings of the experimental setups

1. Schematic drawings of experimental setups

I-32 I-31 N2 Condenser I-10 T h er m oc ou p le N2 Heater/stirrer IL + HAc HAc + N2 E-3 E-9 E-10 E-8 E-5 E-4 E-7 Vacuum pump HAc

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Cooler

I-10

T

h

er

m

oc

ou

p

le

Heater/stirrer

IL + HAc + MeOH +

cat. + H

2

O + MeAc

S

am

p

li

n

g

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N

2 I-10 T h er m oc ou p le

N

2 Heater/stirrer NH4Ac/TMA-HAc + H2O NH3/TMA + H2O + N2 I-32 I-31 H2SO4 + H2O (NH3/TMA trap)

Fig. S3. Experimental apparatus for NH3 or TMA removal from aqueous NH4Ac or TMA-HAc

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I-10 T h er m oc ou p le

N

2 Heater/stirrer IL + HAc HAc + N2

Vent

I-32 I-31

Catalyst bed packed with TiO2

2 HAc → acetone + H2O + CO2 HAc + acetone

L iq u id n it ro ge n c ol d t ra p