Quantitative determination of fluoride as a major pollutant in the emissions from the thermal treatment of clayey raw materials.
Three clayey raw materials for production of traditional ceramics, all with medium to high fluorine content, have been investigated for determining their attitude to fluoride emission during firing, at varying parameters of the firing cycle, maximum firing temperature included, and in the presence or in the absence of calcium carbonate either added to the sample or naturally present in it. Different analytical methods for the determination of fluoride have been tested, together with different sample preparation procedures aimed to obtain minimum loss of fluoride in the pre-treatment step.
Zannini
Paolo
P
Department of Chemistry, University of Modena and Reggio Emilia Via G. Campi, 183-41100 Modena, Italy. zannini.paolo@unimore.it
D000393:Air Pollutants / Q000032:analysis*; D000397:Air Pollution / Q000517:prevention & control; D000538:Aluminum Silicates / Q000032:analysis*; D002516:Ceramics / Q000032:analysis; D000077215:Clay; D005459:Fluorides / Q000032:analysis*; D006801:Humans
D000393:Air Pollutants; D000538:Aluminum Silicates; D005459:Fluorides; D000077215:Clay