Ion exchange material prepared from partially pyrolyzed...

Details Ion exchange material prepared from partially pyrolyzed... Ion exchange material prepared from partially pyrolyzed...

C - Chemistry, Metallurgy

01

B

252/24, 362/26,

C01B 31/16 (2006.01) B01J 39/24 (2006.01) B01J 41/18 (2006.01)

Patent

CA 1125264

ABSTRACT OF THE DISCLOSURE Macroporous styrene polymer particles which have been partially pyrolyzed at temperatures between 300 and 800°C to form non-functionalized, carbonaceous adsorbents, are functionalized according to this invention to produce weak base, strong base, weak acid or strong acid, dense ion exchange particles, or precursors thereof, using such reactions as halogenation, sulfonation, chloromethylation, chlorosulfonation and oxidation, alone or followed by aminolysis or other conventional functionalization reactions.

366810

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