Synthesis of novel ionic liquids from lignin-derived compounds
AssigneesThe Regents of the University of California, Sandia Corporation
InventorsAaron Socha, Seema Singh, Blake Simmons, Maxime Bergeron
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Abstract
Methods and compositions are provided for synthesizing ionic liquids from lignin derived compounds comprising: contacting a starting material comprising lignin with a depolymerization agent to depolymerize the lignin and form a mixture of aldehyde containing compounds; contacting the mixture of aldehyde containing compounds with an amine under conditions suitable to convert the mixture of aldehyde containing compounds to a mixture of amine containing compounds; and contacting the mixture of amine containing compounds with an acid under conditions suitable to form an ammonium salt, thereby preparing the ionic liquid.
Claims36
A process for preparing an ionic liquid comprising:
- contacting a starting material comprising lignin with a depolymerization agent to depolymerize the lignin and form a mixture of aldehyde containing compounds;
- contacting the mixture of aldehyde containing compounds with an amine under conditions suitable to convert the mixture of aldehyde containing compounds to a mixture of amine containing compounds;
- and
- contacting the mixture of amine containing compounds with an acid under conditions suitable to form an ammonium salt, thereby preparing the ionic liquid.
An ionic liquid prepared by
- contacting a starting material comprising lignin with a depolymerization agent to depolymerize the lignin and form a mixture of aldehyde containing compounds;
- contacting the mixture of aldehyde containing compounds with an amine under conditions suitable to convert the mixture of aldehyde containing compounds to a mixture of amine containing compounds;
- and
- contacting the mixture of amine containing compounds with a mineral acid under conditions suitable to form an ammonium salt, thereby preparing an ionic liquid.
An ionic liquid comprising at least one compound of the following formula:
- wherein each of the R groups of the nitrogen is independently selected from the group consisting of H, CH3, and CH2CH3;
- at least two of the R groups of the nitrogen are independently selected from the group consisting of CH3, and CH2CH3;
- R′, R″, and R′″ are independently selected from the group consisting of H, OH, and OCH3;
- R4 is selected from the group consisting of H, OH, and CH2OH;
- and
- X comprises an acid anion.
Dependencies are inferred from the claim text.