Ion-exchange hollow fibers

Details Ion-exchange hollow fibers Ion-exchange hollow fibers

1973-05-23

1976-03-16

Spear, Jr., Frank A.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

260 21E, 260 22R, 264 41, B01D 1500, C08J 524, B29D 2700

Patent

active

039444856

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, crosslinked, 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: 3293195 (1966-12-01), Greer
patent: 3342729 (1967-09-01), Strand
patent: 3423491 (1969-01-01), McLain et al.
patent: 3453354 (1969-07-01), Tejeda et al.
patent: 3541030 (1970-11-01), Boies
patent: 3553306 (1971-01-01), Church
patent: 3645922 (1972-02-01), Weiss et al.
patent: 3754055 (1973-08-01), Rembaum
Helfferich, Ion Exchange, McGraw-Hill, 1962, pp. 134-136.

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