Diethyl oxalate catalysts
US10549265B2 · kind B2 · utility
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Key dates
| Filing date | Jun 24, 2015 |
| Grant date | Feb 4, 2020 |
| Priority date | — |
| Expiry date | Jun 24, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2235/30
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A highly effective catalyst for the preparation of diethyl oxalate using carbon monoxide using Pd/α-Al2O3 and CeO2 as a promoter. High conversion rates with greatly extended catalyst life is achieved with the CeO2-enhanced Pd catalysts. The catalysts can be used for the production of high-value diethyl oxalate, and eventually ethylene glycol, from coal-derived syngas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.