Continuous processes for the selective conversion of aldohexose-yielding carbohydrate to ethylene glycol using low concentrations of retro-aldol catalyst
US11680031B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Jan 19, 2022 |
| Grant date | Jun 20, 2023 |
| Priority date | — |
| Expiry date | Jan 19, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/52
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Retro-aldol processes are disclosed that use very low concentrations of retro-aldol catalyst in combination with hydrogenation catalyst of certain activities, sizes and spatial dispersions to obtain the high selectivities to ethylene glycol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.