摘要:
Disclosed is a method for preparing a granulated inorganic adsorbent for radionuclides including slurry forming, solidification, drying and hardening, granulation, and washing steps: blending a dihydrogen phosphate, a powdered inorganic adsorbent raw material and a setting time regulator in water to form a slurry; adding sintered magnesia into the slurry, and blending the mixture to form a solidified slurry; setting the solidified slurry on a disk member, and naturally drying to hardening in a specific temperature range to form a hardened solid material; smashing the hardened solid material and performing vibration sieving by using a screen to obtain a granulated inorganic adsorbent for radionuclides containing residual reagents; washing the granulated inorganic adsorbent for radionuclides containing residual reagents with water, to remove the residual reagents to complete preparation, where the adsorption capacity of the granulated inorganic adsorbent for radionuclides thus prepared is in the range of 0.7 to 1.9 meq/g.
摘要:
The present invention relates to a method for granulation of an absorbent and adsorbent granules prepared by the same. The method comprises the steps of blending sodium metasilicate, metakaoline and an inorganic ion exchange material in water to form a slurry; decanting the resulted slurry onto a nylon cloth of 300 to 400 meshes and natural drying at ambient temperature to solidification; then breaking the solidified final product and sieving it by a screen having a mesh size of from 0.2 to 2.5 mm to provide the absorbent granules having excellent absorbability.