Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1974-11-25
1976-10-12
Jenkins, Robert W.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
259DIG46, B01D 3506
Patent
active
039856496
ABSTRACT:
A method of carrying out a solid phase chemical reaction or a filtration step to remove a solid from a liquid utilizing ferromagnetic particles. The particles may have a porous or otherwise bondable solid support material having adsorbed or chemically bonded thereon a biologically active substance to make them biologically active. Alternatively, the particles may act as an inert medium to convey a solid precipitate out of a liquid. The process involves the addition of the ferromagnetic particles to a potentially reactive fluid. After the fluid has reacted either as a result of contact with the biologically active material or by a process causing a precipitate in the fluid, the particles may be separated from the fluid by bringing the particles into close proximity with a magnet such as an electromagnet. When sufficient particles are held in an elongated container and a magnetic force is exerted to hold the particles in a porous mass across the container, the particles may be moved through the liquid to filter solid particles from the liquid. A second container may be placed over a portion of the elongated container on the particles and any entrapped precipitate may be removed from the elongated container. The particles may alternatively have a bondable surface capable of adsorption or chemical coupling of biologically active materials. Polymer and ceramic biomaterial supports and particular combinations with ferromagnetic materials are disclosed. A valve formed from the ferromagnetic particles is also disclosed herein.
REFERENCES:
patent: 3219318 (1965-11-01), Hershler
patent: 3428179 (1969-02-01), Boyd
patent: 3487939 (1970-01-01), Keeley
patent: 3712472 (1973-01-01), Elliott
patent: 3793886 (1974-02-01), Rosenwald
patent: 3869251 (1975-03-01), Tsantker
patent: 3892908 (1975-07-01), Lovness
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