| 摘要 |
PROBLEM TO BE SOLVED: To provide precipitated silica sorbents.SOLUTION: The present invention is directed to a separation medium comprising rotary dried or spray dried precipitated silica. The silica has a ratio of BET to CTAB of at least 1.0 measured prior to 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 fluid stream with the separation medium described above. The present invention is further directed to a method of removing one or more contaminants from a liquid or gaseous stream, comprising contacting the liquid or gaseous stream with the separation medium described above. |
