Polymerication processes and products therefrom

Details Polymerication processes and products therefrom Polymerication processes and products therefrom

1980-06-02

1984-12-04

Cintins, Ivars

Liquid purification or separation

Processes

Ion exchange or selective sorption

210683, B01J 3904, B01J 4104

Patent

active

044863136

ABSTRACT:
Ionic solutes are removed from fluids under oxidizing conditions or conditions of high physical stress or shock by contacting the fluids with ion exchange resin beads having macroreticular structure. These beads have a particular resistance to such conditions, and are formed by functionalizing with ion exchange functional groups a copolymer of 4-25% polyvinylidene crosslinking monomer and 96-75% monoethylenically unsaturated monomer or monomers, suspension polymerized in a liquid which is a solute for the monomer mixture, which does not substantially swell the copolymer, and which is present with the polyvinylidene monomer in an amount sufficient to cause separation of the copolymer from the dissolved monomer.

REFERENCES:
patent: 3549562 (1970-12-01), Mindick et al.
patent: 3586646 (1971-06-01), Corte et al.
patent: 3637535 (1972-01-01), Corte et al.

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