Exploitation of the ceramic wastes for the extraction of nano aluminum oxide powder

This work aims at exploitation of the ceramic waste material for alumina extraction through mixing with KHSO4 as a fluxing agent. The chemical composition of the ceramic waste sample as well as the extracted alumina sample was investigated using X-ray fluorescence (XRF). The mineralogical composition and crystal size of the extracted alumina sample was investigated using X-ray diffraction (XRD). Transmission electron microscope (TEM) was used to study the grain size of the extracted alumina particles. Highly pure (99.37%) nano alumina particles (<50 nm) could be extracted from the ceramic waste sample. The efficiency of alumina extraction is 99.06%.