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Imine Metathesis by Silica-Supported Catalysts Using the Methodology of Surface Organometallic Chemistry
Published on: October 18, 2019
First application of supported ionic liquid phase (SILP) catalysis for continuous methanol carbonylation
Anders Riisager1, Betina Jørgensen, Peter Wasserscheid
1Department of Chemistry and Center for Sustainable and Green Chemistry, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark. ar@kemi.dtu.dk
A novel rhodium iodide catalyst supported on silica and ionic liquid phases shows high activity and selectivity for producing acetyl products via methanol carbonylation.
Area of Science:
- Catalysis
- Materials Science
- Chemical Engineering
Background:
- Methanol carbonylation is a key industrial process.
- Developing efficient and selective catalysts is crucial.
- Solid catalysts offer advantages in separation and reusability.
Purpose of the Study:
- To develop a novel solid catalyst for methanol carbonylation.
- To evaluate the activity and selectivity of the catalyst system.
- To investigate the potential of silica-supported ionic liquid phase (SILP) catalysts.
Main Methods:
- Synthesis of a silica-supported ionic liquid phase (SILP) rhodium iodide catalyst.
- Characterization of the catalyst system: [BMIM][Rh(CO)2I2]-[BMIM]I-SiO2.
- Testing the catalyst in a fixed-bed, continuous gas-phase methanol carbonylation reactor.
Main Results:
- The SILP rhodium iodide catalyst demonstrated excellent activity.
- High selectivity towards acetyl products was observed.
- The catalyst system proved effective in continuous gas-phase operation.
Conclusions:
- The developed SILP rhodium iodide catalyst is highly effective for methanol carbonylation.
- This catalyst system offers a promising route for efficient production of acetyl products.
- SILP technology provides a viable platform for heterogeneous catalysis in carbonylation reactions.
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