Characterization and Beneficiation of an Egyptian Nepheline Syenite Ore

Table 4

Effect of feed size fraction of the nepheline syenite ore on the performance of the Carpco Induced Roll Magnetic separator.

Feed size	Product	Product weight,; %	Assay,; Fe2O3 %	Distribution,; Fe2O3 %
−0.25 mm	Magnetic	25.1	21.2	82.5
	Nonmagnetic	74.9	1.5	17.5
	Total	100	6.45	100
−0.16 mm	Magnetic	25.8	22.5	89.7
	Nonmagnetic	74.2	0.91	10.3
	Total	100	6.48	100
−0.125 mm	Magnetic	23.7	25.1	93.7
	Nonmagnetic	76.3	0.52	6.3
	Total	100	6.36	100

Feed rate: 24 kg/h; Field intensity: 14500 Gauss.