Characterization of Dust Calcium Phosphate Obtained from Baghouse Dust Collector during Drying Process

Baghouse dust collectors are using in the unit of drying located in Beni-Idir Khouribga Morocco, to remove phosphates particles from dust air drying before its expellation through the smokestacks. This energetic process is accompanied by the generation of particle puffs emitted during pulse jet cleaning of the baghouse phosphate dust collector. A small dust phosphate part penetrates to the inside of the filter bag and causes the clogging depth. During maintenance of baghouse phosphate dust collectors, three samples were collected: untreated calcium phosphate dust, calcium phosphate dust from the outside of filter media and calcium phosphate dust from the inside of filter media which causes clogging depth. Thus, the aim of this study is the chemical characterization of the three samples. The chemical investigation was conducted using: scanning electron microscopy (SEM) coupled with the energy dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD) and X-ray fluorescence (XFR), Raman spectroscopy and Fourier transform infrared spectroscopy (FTIR). The obtained results suggested that there were differences observed regarding the chemical parameters during the drying process.