Heterogeneous liquid phase catalytic process for the dehydration of monoethanolamine to ethylenimine
US9162221B1 · kind B1 · utility
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17Claims
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Key dates
| Filing date | Aug 30, 2013 |
| Grant date | Oct 20, 2015 |
| Priority date | — |
| Expiry date | Aug 30, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2531/828
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A novel heterogeneous liquid phase catalytic process for dehydration of monoethanolamine to ethylenimine and water has been discovered. The process utilizes a novel catalyst made by modifying a cation exchange resin in the hydrogen ion form. The process using the catalyst is performed in a solution of monoethanolamine in a solvent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.