Metal tungstates for use as nitrogen oxides reduction catalysts
US10293328B2 · kind B2 · utility
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Key dates
| Filing date | Jan 19, 2018 |
| Grant date | May 21, 2019 |
| Priority date | — |
| Expiry date | Jan 19, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A nitrogen oxide (NOx) reduction catalyst that includes a transition metal tungstate having the formula: MWO4 wherein M is selected from the group consisting of Mn, Fe, Co, Ni, and Cu. The catalyst may be utilized in various environments including oxygen rich and oxygen deficient environments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.