Ion exchange resin, process for producing the same, and...

Details Ion exchange resin, process for producing the same, and... Ion exchange resin, process for producing the same, and...

C - Chemistry, Metallurgy

08

J

C08J 5/22 (2006.01) B01J 41/14 (2006.01) B01J 47/04 (2006.01) C02F 1/42 (2006.01)

Patent

CA 2058002

ABSTRACT OF THE DISCLOSURE A process for producing an ion exchange resin having a specific surface area of at least 0.04 m2/g, an ion exchange resin produced by the process, and a method for removing ionic and noinionic impurities from a condensate by means of the ion exchange resin produced by the process. The process comprises the steps of: (1) uniformly imbibing a monomer mixture comprising a bifunctional unsaturated aromatic monomer and a monofunctional unsaturated aromatic monomer into aromatic crosslinked copolymer particles comprising a monofunctional unsaturated aromatic monomer and a bifunctional unsaturated aromatic monomer and having a porosity of not more than 0.2 m?/g; (2) polymerizing the monomer mixture in the presence of a polymerization initiator; and (3) introducing an ion exchange group into the resulting copolymer particles. The ion exchange resin has a large specific surface area and high physical strength and is capable of removing both ionic and noinionic impurities from a condensate. - 36 -

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