Preparation and Properties of the Zinc-Activated Carbon Composite Adsorbent for Extraction of Uranium from Sea Water

Studies on the Extraction of Uranium from Sea Water by the Composite Adsorbent (Part 7)

Abstract

Basic zinc carbonate-activated carbon composite adsorbents were prepared under various conditions. Chemical composition of the composite adsorbents was determined by chemical analysis, X-ray diffraction, thermal analysis, and IR study.
Most products revealed the same pattern of X-ray diffraction and the other properties as the basic zinc carbonate (ZnCO₃·3Zn (OH)₂·H₂O). A new phase which had different X-ray pattern and higher decomposition temperature was found in some cases. Relating to the solubility and adsorption capacity of uranium, there was no distinct difference between this new phase and ordinary basic zinc carbonate composite adsorbents.