Modified polyamines grafted to a particulate, solid support as sorbent materials for removal of target substances from fluids
AssigneePuraffinity Ltd.
InventorsBenjamin David Reeve, Wen Li, Katharina Reeh, Amanda Yi Fen You, Henrik Hagemann
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Abstract
Provided are compositions for removal of a target substance from a fluid stream, the composition comprising a polyamine; and a covalently linked hydrophobic group, wherein the polyamine is covalently linked to a support material. Also provided are processes for removal of a target substance from a fluid stream comprising contacting the fluid stream with a composition comprising a polyamine; and a covalently linked hydrophobic group, wherein the polyamine is covalently linked to a support material.
Claims25
A composition for removal of a target substance from a fluid stream, the composition comprising:
- a) a sorbent molecule comprising:
- i) a branched polyamine, and
- ii) a hydrophobic group covalently linked to the branched polyamine;
- and
- b) a cellulose-containing support material covalently linked to the branched polyamine.
A composition suitable for the removal of one or more poly- and perfluorinated alkyl substance (PFAS) from water, the composition comprising:
- a) a branched polyamine, wherein the branched polyamine is polyethylenimine (PEI);
- b) a hydrophobic group comprising a hexyl group and covalently linked to the branched polyamine via an amide bond;
- and
- c) a cellulose-containing support material covalently linked to the branched polyamine.
Dependencies are inferred from the claim text.