Porous mixed metal oxy-hydroxides and method of preparation
US10625239B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 16, 2016 |
| Grant date | Apr 21, 2020 |
| Priority date | — |
| Expiry date | Apr 10, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2257/408
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Provided are mixed metal oxy-hydroxides that serve as reactive media to bind, sequester, or alter one or more toxic chemicals such as sulfur dioxide (SO2), hydrogen cyanide (HCN), and others. A reactive media includes: a porous metal oxy-hydroxide including at least one first transition metal that is optionally one or more of copper, zinc, or iron; a second transition metal linked to the first transition metal by a bond that includes an oxygen, the second transition metal selected optionally being one or more of magnesium, calcium, cobalt, titanium, zirconium, aluminum, and silicon; and the metal oxy-hydroxide terminated by at least one hydroxyl group. The resulting media provides for excellent porosity and reactivity for removal of toxic chemicals from the environment or a sample.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.