Characterization and Beneficiation of an Egyptian Nepheline Syenite Ore

Table 9

Concentration of the hazardus elements as a function of the iron assay of the product. The concentration of the radioactive minerals are in part per million (PPM).

Element	Product iron assay
	0.5% Fe2O3	13% Fe2O3	6.5% Fe2O3 (Feed)
Uranium	1.8	3.9	2.5
Thorium	9.3	17.4	13.0
Radon	10.5	15.3	11.5