Dehydration catalyst for preparing N-substituted maleimide, preparation method thereof, and method of preparing N-substituted maleimide
US10464050B2 · kind B2 · utility
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13Claims
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Key dates
| Filing date | Aug 1, 2017 |
| Grant date | Nov 5, 2019 |
| Priority date | — |
| Expiry date | Aug 1, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J35/80
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A dehydration catalyst for preparing N-substituted maleimide, which may minimize formation of by-products, is reusable because its activity is not reduced significantly even after being reused several times, and may maintain its reaction activity for a long time, a preparation method thereof, and a method of preparing N-substituted maleimide, are provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.