Crystallized material with hierarchical porosity containing silicon
US8685366B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2008 |
| Grant date | Apr 1, 2014 |
| Priority date | — |
| Expiry date | Nov 30, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B39/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Hierarchical porosity material consisting of at least two elementary spherical particles having a maximum diameter of 200 microns, at least one of said spherical particles comprises at least one matrix based on silicon oxide and exhibiting crystallized walls, said material having a macropore volume measured by mercury porosimetry ranging between 0.05 and 1 ml/g, a mesopore volume measured by nitrogen volumetric analysis ranging between 0.01 and 1 ml/g and a micropore volume measured by nitrogen volumetric analysis ranging between 0.03 and 0.4 ml/g. The preparation of said material and use of same as adsorbent or as acidic solid is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.