Precipitated silica sorbents and method of separating materials from a fluid stream
US9073041B2 · kind B2 · utility
3Cited by
4References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2012 |
| Grant date | Jul 7, 2015 |
| Priority date | — |
| Expiry date | Apr 19, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/19
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention is directed to a separation medium comprising rotary dried or spray dried precipitated silica. The silica has a pore surface area P wherein log10 P>2.2, and the ratio of BET to CTAB is at least 1.0 measured prior to any surface modification of the silica.The present invention is further directed to a method of separating suspended or dissolved materials from a fluid stream, comprising contacting the stream with the separation medium described above.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.