Crystalline transition metal tungstate
US10688479B2 · kind B2 · utility
1Cited by
48References
17Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 18, 2019 |
| Grant date | Jun 23, 2020 |
| Priority date | — |
| Expiry date | Apr 18, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2002/74
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A hydroprocessing catalyst or catalyst precursor has been developed. The catalyst is a crystalline transition metal tungstate material or metal sulfides derived therefrom. The hydroprocessing using the crystalline ammonia transition metal tungstate material may include hydrodenitrification, hydrodesulfurization, hydrodemetallation, hydrodesilication, hydrodearomatization, hydroisomerization, hydrotreating, hydrofining, and hydrocracking.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.