Separation of surfactants from polar solids
US8765660B1 · kind B1 · utility
25Cited by
158References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2013 |
| Grant date | Jul 1, 2014 |
| Priority date | — |
| Expiry date | Mar 14, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B39/026
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Methods for removing surfactants from polar solids are described herein. In particular, various embodiments described herein relate to the removal of surfactants from polar solids that involves contacting a surfactant-containing porous polar solid with an extraction agent comprising water, a salt, and, optionally, a polar organic compound. In certain embodiments described herein, the extraction agents are used to remove surfactants from a mesoporous zeolite.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.