Solid filtration medium incorporating alumina and carbon
US4855276A · kind A · utility
71Cited by
24References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 2, 1987 |
| Grant date | Aug 8, 1989 |
| Priority date | — |
| Expiry date | Sep 2, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J20/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An adsorbent composition, method of preparing same, and method of treating a fluid stream with the absorbent are disclosed. Alumina and carbon are combined with water in preferred proportions in one embodiment. Sodium bicarbonate and impregnates such as Group 1A metal hydroxides and Group 7A salts of Group 1A metals can be added. Improved efficiency of removal of compounds such as hydrogen sulfide is achieved, and ignition temperature is reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.