Method for in-situ generation of nanoflower-like manganese dioxide catalyst on filter material
US11565241B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2016 |
| Grant date | Jan 31, 2023 |
| Priority date | — |
| Expiry date | Jul 16, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2235/30
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for in-situ generation of nanoflower-like manganese dioxide catalyst on filter material is provided. The method comprises: immersing a filter material in a solution containing sodium lauryl sulfate and nitric acid; first modifying the surface of the filter material by using the sodium lauryl sulfate so that a charge layer is wound around the surface of the filter material and tightly absorbs H+ in an acid solution; and then adding potassium permanganate as an oxidant to react with H30 on the surface of the filter material to generate nano flower-like manganese dioxide in situ on the surface of the filter material, so as to obtain a composite filter material having a denitration function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.