Floating type adsorbent for removal of phosphate in aqueous solution and method for fabricating the same and method for regeneration of the same
US9295974B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 2013 |
| Grant date | Mar 29, 2016 |
| Priority date | — |
| Expiry date | Mar 4, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J20/3257
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present disclosure relates to a floating type adsorbent for removal of phosphate that can effectively remove phosphate from aqueous phase through reaction between an amine function attached on the surface of a sponge and phosphate. This adsorbent can be regenerated by desorbing the adsorbed phosphate, a method for fabricating same and a method for regeneration the floating type adsorbent for removal of phosphate. The floating type adsorbent for removal of phosphate according to the present disclosure is fabricated by immersing a sponge in a mixture solution of an amine precursor and anhydrous toluene to form an amine function on the surface of the sponge. The amine precursor may be 3-aminopropyltriethoxysilane (APTES) and the APTES and the anhydrous toluene may be mixed at a volume ratio of 0.5-1:1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.