The invention discloses a preparation method of strong-acidity
polystyrene cationic exchange resin, comprising the steps of mixing well methyl
styrene,
methylene bisacrylamide, and methylbenzene, adding pre-processed rice
hull and
gelatin solution, mixing well, adding tert-butyl peroxy-2-ethylhexanoate, heating and stirring, heating, holding the temperature, aging, and filtering to obtain
polystyrene microspheres; feeding the
polystyrene microspheres into n-
heptane for swelling, dropwise adding
sulfuric acid solution while stirring, adjusting the temperature after dropwise adding, stirring, washing with
ice water, and filtering to obtain the strong-acidity polystyrene
cationic exchange resin. The pre-processed rice
hull is prepared by: stirring rice
hull and kaolin, feeding into an anaerobic
muffle furnace, heating for calcining, cooling,
grinding, adding
nitric acid solution, stirring, washing until neutrality,
drying, adding hyperbranched polysiloxane and
acetone, ultrasonically treating, treating with
microwave, and
drying by spraying.