Ion-exchange hollow fibers

Details Ion-exchange hollow fibers Ion-exchange hollow fibers

1975-03-05

1980-02-05

Lander, Ferris H.

Coating processes

Interior of hollow article coating

427244, 427246, 521 29, 521 38, 210 23R, 210321R, 423 7, C08J 520, C08J 524

Patent

active

041873335

ABSTRACT:
An ion-exchange hollow fiber is prepared by introducing into the wall of the fiber polymerizable liquid monomers, and polymerizing the monomers therein to form solid, insoluble, cross-linked, ion-exchange resin particles which embed in the wall of the fiber. Excess particles blocking the central passage or bore of the fiber are removed by forcing liquid through the fiber. The fibers have high ion-exchange capacity, a practical wall permeability and good mechanical strength even with very thin wall dimensions. Experimental investigation of bundles of ion-exchange hollow fibers attached to a header assembly have shown the fiber to be very efficient in removing counterions from solution.

REFERENCES:
patent: 3186941 (1965-06-01), Skiens
patent: 3423491 (1969-01-01), McLain et al.
patent: 3541030 (1970-11-01), Boies
patent: 3645922 (1972-02-01), Weiss
patent: 3754055 (1973-08-01), Rembaum

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