Patent ID: 9409148
Filing Date: 2016-08-09
CPC Classification: B01J

Claim Text:
1. A particulate magnetic nanostructured solid sorbent (MNSS) material comprising a plurality of particles, each particle of the MNSS comprising a plurality of nanoparticles tethered together by molecular chains having at least two ends per chain, each chain comprising a substantially linear hydrocarbon, a poly(alkylene oxide), or a combination thereof, the ends of the chains connecting the nanoparticles in a three-dimensional elastic network; wherein the network has a junction functionality of about 2.1 to about 6, with the nanoparticles as junctions of the network; a surface of at least some of the nanoparticles comprises a polysiloxane bearing sorption-aiding substituents selected from hydrophilic substituents, lipophilic substituents, and a combination thereof; the plurality of nanoparticles comprises superparamagnetic nanoparticles or a combination of superparamagnetic and non-magnetic nanoparticles; the superparamagnetic nanoparticles comprise nanocrystalline metallic cores with a passivating metal oxide coating around each core; and the nanocrystalline metallic cores have ferromagnetic or ferrimagnetic properties.