Process for the removal of endocrine disrupting compounds
US8057683B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 19, 2008 |
| Grant date | Nov 15, 2011 |
| Priority date | — |
| Expiry date | Mar 19, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2209/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to the removal of endocrine disrupting compounds from an aqueous medium by adding surface-reacted natural calcium carbonate or an aqueous suspension comprising surface-reacted calcium carbonate and having a pH greater than 6.0 measured at 20° C., to the medium, wherein the surface-reacted calcium carbonate is a reaction product of natural calcium carbonate with carbon dioxide and one or more acids, the use of the surface-reacted natural calcium carbonate for the removal of endocrine disrupting compounds, as well as to a combination of a surface-reacted natural calcium carbonate and activated carbon for the removal of endocrine disrupting compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.