Direct synthesis of a SAPO material with AFX structure comprising copper and use of this material
US11338277B2 · kind B2 · utility
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3References
16Claims
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Key dates
| Filing date | May 18, 2018 |
| Grant date | May 24, 2022 |
| Priority date | — |
| Expiry date | Nov 14, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention concerns a process for preparing a copper-comprising SAPO material with AFX structure, comprising at least the steps of mixing, in an aqueous medium, at least one aluminum source, at least one silicon source, at least one copper source, at least one phosphorus source, a TETA complexing agent and a TMHD structuring agent, in order to obtain a gel, and hydrothermal treatment of said gel with a shear rate of less than 50 s−1 in order to obtain crystallization of said copper-comprising SAPO material with AFX structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.