Multi-functional multi-layer hollow fiber membrane containing embedded magnetic particles
OwnerTerrence W. Aylesworthinventor
Life of this patent
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Abstract
This invention relates to a dual-layer, multifunctional hollow fiber membrane having at least two layers that perform two respective functions: 1) a layer that performs a separative function separating a solvent such as a liquid or gas from its solute species; and 2) a layer that performs the function of generating a magnetic field. The layer generating the magnetic field preferably has magnetic nano or micro particles embedded therein to attract, capture and/or position paramagnetic draw solute particles to maximize their osmotic effect.
Claims19
A multifunctional hollow fiber membrane for osmosis comprising:
- an inner membrane layer defining a hollow center, the layer encircling and coaxial with the hollow center;
- a tubular outer membrane layer encircling and coaxial with the inner membrane layer, the outer membrane layer embedded with a plurality of magnetic particles to create a magnetic force, the inner and outer membrane layers each having a porosity defined by a pore diameter size whereby the pore diameters defining the porosity of the inner membrane layer are less than the pore diameters defining the porosity of the outer membrane layer;
- and
- wherein the hollow center contains a solution of superparamagnetic draw particles therein.
A multifunctional hollow fiber membrane for osmosis comprising:
- an inner membrane layer defining a hollow center, the layer encircling and coaxial with the hollow center;
- and
- a tubular outer membrane layer encircling and coaxial with the inner membrane layer, the outer membrane layer embedded with a plurality of magnetic particles to create a magnetic force, the inner and outer membrane layers each having a porosity defined by a pore diameter size whereby the pore diameters defining the porosity of the inner membrane layer are less than the pore diameters defining the porosity of the outer membrane layer;
- and
- wherein the hollow center contains a colloidal dispersion of superparamagnetic draw particles therein.
A multifunctional hollow fiber membrane for osmosis comprising:
- an inner membrane layer defining a hollow center, the inner membrane layer encircling and coaxial with the hollow center, the hollow center containing a colloidal dispersion of superparamagnetic draw particles;
- and
- a tubular outer membrane layer encircling and coaxial with the inner membrane layer, the outer membrane layer embedded with a plurality of elongated magnetic particles to create a radial magnetic force, the inner and outer membrane layers each having a porosity defined by a pore diameter size whereby the pore diameters defining the porosity of the inner membrane layer are less than the pore diameters defining the porosity of the outer membrane layer.
Dependencies are inferred from the claim text.