Carbon coated magnetic nanoparticles and their use in separation processes
US8801936B2 · kind B2 · utility
32Cited by
2References
23Claims
0Family size
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Key dates
| Filing date | Nov 2, 2007 |
| Grant date | Aug 12, 2014 |
| Priority date | — |
| Expiry date | Sep 11, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2998
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to a process for separating a dispersed phase from a continuous phase comprising the steps of i) contacting said phases with an effective amount of nanoparticles; ii) applying a magnetic field gradient to the obtained system; iii) separating the obtained phases wherein said nanoparticles are of the core shell type, said core consists of a metal or alloy having soft magnetic properties and said shell contains a graphene layers which are optionally functionalized; to new nanoparticles and method of manufacturing such nanoparticles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.