Abstract
The effect of hydrolysis temperature of aluminium chloride on the properties of the products was studied to clear the uranium adsorptivity of the composite adsorbent (C-Al-OH).
The aluminium hydroxide prepared at low temperature indicated a X-ray diffraction pattern of byerite. The X-ray diffraction intensity of byerite decreased and the intensity of pseudo-boehmite increased with increasing the hydrolysis temperature. Several adsorbents which were crystalline revealed low adsorptive capacity for uranium.
The adsorptive capacity of the aluminium hydroxide for uranium was closely proportional to the surface area and the alkaline consumption, but was not related to the pore size distribution. On the other hand, the adsorptive capacity of the composite adsorbent was related to the volume of pores larger than 100Å in radius.
