PROCESS FOR PREPARING LOW-BASIC ANIONITES Russian patent published in 1997 - IPC

FIELD: preparation of polymerization-type low-basic anionites, sorption of spent gases from chemical plants and sorption of ions from solutions. SUBSTANCE: claimed invention makes it possible to provide resin having high dynamic exchange capacity at least 1000 mole/cubic m), high osmotic stability (at least 94%) and high resistance to poisoning effect due to the fact that copolymerization is carried out at divinyl benzene content of 8.5-12 wt%, concentration of 50-55% in alkyl benzene fraction having boiling temperature of 80-180 C in amount of 110-130% by weight of monomers with addition of 6% diethyl benzene on heating when mixture is maintained at 70 C for 4 hours, at 80 C for 3 hours, at 93 C for 2 hours, and is thereafter, aminated with diethylene triamine. EFFECT: more efficient preparation process.