Method for contacting active material with liquids and separating same
US5098577A · kind A · utility
11Cited by
3References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 9, 1991 |
| Grant date | Mar 24, 1992 |
| Priority date | — |
| Expiry date | Jan 9, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D15/1892
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Active or functional materials such as adsorbents, catalysts, defoamers and the like are combined with inert low density particles, preferably hollow microspheres, to provide a functional material of controlled density. This product is introduced into a liquid with a somewhat higher density under agitation for a time sufficient to accomplish the desired function. Then agitation is stopped and the spent product floats to provide easy separation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.